gvisor在arm64下syscall.SIGILL信号处理

//      R0 - The signal number.
//      R1 - Pointer to siginfo_t structure.
//      R2 - Pointer to ucontext structure.
//
TEXT ·sighandler(SB),NOSPLIT,$0
        // si_signo should be sigill.
        MOVD    SIGINFO_SIGNO(R1), R7
        CMPW    $4, R7   ----信号num是不是4
        BNE     fallback

        MOVD    CONTEXT_PC(R2), R7
        CMPW    $0, R7
        BEQ     fallback

        MOVD    R2, 8(RSP)
        BL      ·bluepillHandler(SB)   // Call the handler.

        RET

fallback:
        // Jump to the previous signal handler.
        MOVD    ·savedHandler(SB), R7
        B       (R7)

root@cloud:~/onlyGvisor/gvisor# grep '$4' -rn *
pkg/sentry/platform/ring0/pagetables/pcids_aarch64.s:31:        UBFX $ID_AA64MMFR0_ASIDBITS_SHIFT, R0, $4, R0
pkg/sentry/platform/ring0/entry_impl_arm64.s:347:       BFI $48, R1, $16, R0; 
pkg/sentry/platform/ring0/entry_impl_arm64.s:357:       BFI $48, R1, $16, R0; 
pkg/sentry/platform/ptrace/stub_arm64.s:45:     CMN $4095, R0
pkg/sentry/platform/kvm/bluepill_arm64.s:78:    CMPW    $4, R7
pkg/sentry/time/muldiv_arm64.s:21:TEXT ·muldiv64(SB),NOSPLIT,$40-33
pkg/safecopy/memclr_arm64.s:38: LSR $4, R1, R2

pkg/sentry/platform/kvm/bluepill.go:90: if err := safecopy.ReplaceSignalHandler(bluepillSignal, reflect.ValueOf(sighandler).Pointer(), &savedHandler); err != nil {
pkg/safecopy/safecopy.go:130:   if err := ReplaceSignalHandler(syscall.SIGSEGV, reflect.ValueOf(signalHandler).Pointer(), &savedSigSegVHandler); err != nil {
pkg/safecopy/safecopy.go:133:   if err := ReplaceSignalHandler(syscall.SIGBUS, reflect.ValueOf(signalHandler).Pointer(), &savedSigBusHandler); err

SignalSetup

// SignalSetup implements Context.SignalSetup.
func (c *context64) SignalSetup(st *Stack, act *SignalAct, info *SignalInfo, alt *SignalStack, sigset linux.SignalSet) error {
    sp := st.Bottom

    if !(alt.IsEnabled() && sp == alt.Top()) {
        sp -= 128
    }

    // Construct the UContext64 now since we need its size.
    uc := &UContext64{
        Flags: 0,
        Stack: *alt,
        MContext: SignalContext64{
            Regs:   c.Regs.Regs,
            Sp:     c.Regs.Sp,
            Pc:     c.Regs.Pc,
            Pstate: c.Regs.Pstate,
        },
        Sigset: sigset,
    }
    ucSize := uc.SizeBytes()

    // frameSize = ucSize + sizeof(siginfo).
    // sizeof(siginfo) == 128.
    // R30 stores the restorer address.
    frameSize := ucSize + 128
    frameBottom := (sp - usermem.Addr(frameSize)) & ^usermem.Addr(15)
    sp = frameBottom + usermem.Addr(frameSize)
    st.Bottom = sp

    // Prior to proceeding, figure out if the frame will exhaust the range
    // for the signal stack. This is not allowed, and should immediately
    // force signal delivery (reverting to the default handler).
    if act.IsOnStack() && alt.IsEnabled() && !alt.Contains(frameBottom) {
        return syscall.EFAULT
    }

    // Adjust the code.
    info.FixSignalCodeForUser()

    // Set up the stack frame.
    if _, err := info.CopyOut(st, StackBottomMagic); err != nil {
        return err
    }
    infoAddr := st.Bottom
    if _, err := uc.CopyOut(st, StackBottomMagic); err != nil {
        return err
    }
    ucAddr := st.Bottom

    // Set up registers.
    c.Regs.Sp = uint64(st.Bottom)
    c.Regs.Pc = act.Handler
    c.Regs.Regs[0] = uint64(info.Signo)   // 信号num
    c.Regs.Regs[1] = uint64(infoAddr)
    c.Regs.Regs[2] = uint64(ucAddr)
    c.Regs.Regs[30] = uint64(act.Restorer)

    // Save the thread's floating point state.
    c.sigFPState = append(c.sigFPState, c.aarch64FPState)
    // Signal handler gets a clean floating point state.
    c.aarch64FPState = newAarch64FPState()
    return nil
}

runtime.sighandler

root@cloud:~# dlv attach 952917
Type 'help' for list of commands.
(dlv) b sighandler
Breakpoint 1 set at 0x58230 for runtime.sighandler() GOROOT/src/runtime/signal_unix.go:522
(dlv) c
> runtime.sighandler() GOROOT/src/runtime/signal_unix.go:522 (hits goroutine(19):1 total:1) (PC: 0x58230)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000058230 in runtime.sighandler
   at GOROOT/src/runtime/signal_unix.go:522
1  0x0000000000000000 in ???
   at :0
   error: NULL address
(truncated)
(dlv) c
> runtime.sighandler() GOROOT/src/runtime/signal_unix.go:522 (hits goroutine(232):1 total:2) (PC: 0x58230)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000058230 in runtime.sighandler
   at GOROOT/src/runtime/signal_unix.go:522
1  0x0000000000075978 in runtime.systemstack_switch
   at src/runtime/asm_arm64.s:180
2  0x000000000004d2d4 in runtime.newproc
   at GOROOT/src/runtime/proc.go:3527
3  0x00000000006b8db4 in gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).runTurn
   at pkg/sentry/watchdog/watchdog.go:273
4  0x00000000006b8c6c in gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop
   at pkg/sentry/watchdog/watchdog.go:261
5  0x0000000000077c84 in runtime.goexit
   at src/runtime/asm_arm64.s:1136
(dlv) c

// sighandler: see bluepill.go for documentation.
//
// The arguments are the following:
//
//      R0 - The signal number.
//      R1 - Pointer to siginfo_t structure.
//      R2 - Pointer to ucontext structure.
//
TEXT ·sighandler(SB),NOSPLIT,$0
        // si_signo should be sigill.
        MOVD    SIGINFO_SIGNO(R1), R7
        CMPW    $4, R7
        BNE     fallback

        MOVD    CONTEXT_PC(R2), R7
        CMPW    $0, R7
        BEQ     fallback

        MOVD    R2, 8(RSP)
        BL      ·bluepillHandler(SB)   // Call the handler.

        RET

fallback:
        // Jump to the previous signal handler.
        MOVD    ·savedHandler(SB), R7
        B       (R7)

触发 sigill

bluepill()->cli->exception->bluepillHandler()->save cli location X context->KVM_RUN from location X on guest ring0.

// See bluepill.go.
TEXT ·bluepill(SB),NOSPLIT,$0
begin:
        MOVD    vcpu+0(FP), R8
        MOVD    $VCPU_CPU(R8), R9
        ORR     $0xffff000000000000, R9, R9
        // Trigger sigill.
        // In ring0.Start(), the value of R8 will be stored into tpidr_el1.
        // When the context was loaded into vcpu successfully,
        // we will check if the value of R10 and R9 are the same.
        WORD    $0xd538d08a // MRS TPIDR_EL1, R10
check_vcpu:
        CMP     R10, R9
        BEQ     right_vCPU
wrong_vcpu:
        CALL    ·redpill(SB)
        B       begin
right_vCPU:
        RET

Thread ID registers

TPIDR_EL0和TPIDRRO_EL0寄存器是两个具有不同访问权限的线程ID寄存器。

查看syscall.SIGILL的信号编号

root@cloud:~/onlyGvisor# grep bluepillSignal -rn *
gvisor/pkg/sentry/platform/kvm/bluepill.go:90:  if err := safecopy.ReplaceSignalHandler(bluepillSignal, reflect.ValueOf(sighandler).Pointer(), &savedHandler); err != nil {
gvisor/pkg/sentry/platform/kvm/bluepill.go:91:          panic(fmt.Sprintf("Unable to set handler for signal %d: %v", bluepillSignal, err))
gvisor/pkg/sentry/platform/kvm/bluepill_amd64.go:27:    // The action for bluepillSignal is changed by sigaction().
gvisor/pkg/sentry/platform/kvm/bluepill_amd64.go:28:    bluepillSignal = syscall.SIGSEGV
gvisor/pkg/sentry/platform/kvm/bluepill_arm64.go:27:    // The action for bluepillSignal is changed by sigaction().
gvisor/pkg/sentry/platform/kvm/bluepill_arm64.go:28:    bluepillSignal = syscall.SIGILL
root@cloud:~/onlyGvisor# kill -l | grep -i SIGILL
 1) SIGHUP       2) SIGINT       3) SIGQUIT      4) SIGILL       5) SIGTRAP
root@cloud:~/onlyGvisor# kill -4 948796
root@cloud:~/onlyGvisor# 

给bluepillHandler设置断点

KVM_RUN is called in bluepillhandler and bluepillhandler is registered as the siganl SIGSEGV handler, so only this signal will trigger the KVM_RUN?  

bluepillHandler's KVM_EXIT_HLT handler copies the registers at the point of SYSCALL to ucontext so that on sigreturn we'll return to the SYSCALL instructio

root@cloud:~# dlv attach 948796
Type 'help' for list of commands.
(dlv) b bluepillHandler
Breakpoint 1 set at 0x87b300 for gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(257):1 total:1) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) bt
 0  0x000000000087b300 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler
    at pkg/sentry/platform/kvm/bluepill_unsafe.go:91
 1  0x0000000000881bec in ???
    at ?:-1
 2  0x0000ffffa1ad1598 in ???
    at ?:-1
 3  0x000000000003f4a8 in runtime.futexsleep
    at GOROOT/src/runtime/os_linux.go:45
 4  0x0000000000c11a8c in ???
    at ?:-1
 5  0x000000000001ac8c in runtime.notetsleep_internal
    at GOROOT/src/runtime/lock_futex.go:182
 6  0x00000000015377e0 in ???
    at ?:-1
 7  0x0000000000074354 in os/signal.signal_recv
    at GOROOT/src/runtime/sigqueue.go:147
 8  0x00000000015377e0 in ???
    at ?:-1
 9  0x0000000000077c84 in runtime.goexit
    at src/runtime/asm_arm64.s:1136
    error: Undefined return address at 0x77c84
(truncated)
(dlv) 

//
//go:nosplit
func bluepillGuestExit(c *vCPU, context unsafe.Pointer) {
    // Increment our counter.
    atomic.AddUint64(&c.guestExits, 1)

    // Copy out registers.
    bluepillArchExit(c, bluepillArchContext(context))

    // Return to the vCPUReady state; notify any waiters.
    user := atomic.LoadUint32(&c.state) & vCPUUser
    switch atomic.SwapUint32(&c.state, user) {
    case user | vCPUGuest: // Expected case.
    case user | vCPUGuest | vCPUWaiter:
        c.notify()
    default:
        throw("invalid state")
    }
}

unc bluepillArchExit(c *vCPU, context *arch.SignalContext64) {
    regs := c.CPU.Registers()
    context.R8 = regs.R8
    context.R9 = regs.R9
    context.R10 = regs.R10
    context.R11 = regs.R11
    context.R12 = regs.R12
    context.R13 = regs.R13
    context.R14 = regs.R14
    context.R15 = regs.R15
    context.Rdi = regs.Rdi
    context.Rsi = regs.Rsi
    context.Rbp = regs.Rbp
    context.Rbx = regs.Rbx
    context.Rdx = regs.Rdx
    context.Rax = regs.Rax
    context.Rcx = regs.Rcx
    context.Rsp = regs.Rsp
    context.Rip = regs.Rip
    context.Eflags = regs.Eflags

    // Set the context pointer to the saved floating point state. This is
    // where the guest data has been serialized, the kernel will restore
    // from this new pointer value.
    context.Fpstate = uint64(uintptrValue((*byte)(c.floatingPointState)))
}

发送 syscall.SIGILL

root@cloud:~/onlyGvisor# kill -4 948796




demo2 
执行 docker rm -f test

(dlv) 
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(250):1 total:2) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) 
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(250):2 total:3) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) bt
 0  0x000000000087b300 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler
    at pkg/sentry/platform/kvm/bluepill_unsafe.go:91
 1  0x0000000000881bec in ???
    at ?:-1
 2  0x0000ffffa1ad1598 in ???
    at ?:-1
 3  0x000000000087a858 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*allocator).FreePTEs
    at pkg/sentry/platform/kvm/bluepill_allocator.go:91            调用bluepill
 4  0x0000004000782480 in ???
    at ?:-1
 5  0x00000000008774e8 in gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables.(*unmapWalker).iterateRangeCanonical
    at bazel-out/aarch64-dbg-ST-4c64f0b3d5c7/bin/pkg/sentry/platform/ring0/pagetables/walker_unmap_arm64.go:247
 6  0x00000040005ca000 in ???
    at ?:-1
 7  0x0000000000874dd0 in gvisor.dev/gvisor/pkg/sentry/platform/ring0/pagetables.(*PageTables).Unmap
    at pkg/sentry/platform/ring0/pagetables/pagetables.go:226
 8  0x000000400068fd78 in ???
    at ?:-1
 9  0x000000000087a204 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*addressSpace).Release
    at pkg/sentry/platform/kvm/address_space.go:243
10  0x0000004000124230 in ???
    at ?:-1
11  0x00000000003dd7b0 in gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).DecUsers
    at pkg/sentry/mm/lifecycle.go:273
12  0x000000400000c100 in ???
    at ?:-1
13  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
    at pkg/sentry/kernel/task_run.go:97
14  0x0000004000367000 in ???
    at ?:-1
    error: input/output error

demo3

1、b bluepillHandler

2、docker exec -it test ping 8.8.8.8

(dlv) b bluepillHandler
Breakpoint 2 set at 0x87b300 for gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(230):1 total:1) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) bt
 0  0x000000000087b300 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler
    at pkg/sentry/platform/kvm/bluepill_unsafe.go:91
 1  0x0000000000881bec in ???
    at ?:-1
 2  0x0000ffffa4a94598 in ???
    at ?:-1
 3  0x000000000087f514 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser
    at pkg/sentry/platform/kvm/machine_arm64_unsafe.go:249
 4  0x0000004000475000 in ???
    at ?:-1
 5  0x000000000087f514 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser
    at pkg/sentry/platform/kvm/machine_arm64_unsafe.go:249
 6  0x000000400062ccd8 in ???
    at ?:-1
 7  0x00000000005186d0 in gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute
    at pkg/sentry/kernel/task_run.go:271
 8  0x000000400022c000 in ???
    at ?:-1
 9  0x0000000000077c84 in runtime.goexit
    at src/runtime/asm_arm64.s:1136
    error: Undefined return address at 0x77c84
(truncated)
(dlv) 

 和发送sigill的信号的调用栈不一样

// See bluepill.go.
TEXT ·bluepill(SB),NOSPLIT,$0
begin:
        MOVD    vcpu+0(FP), R8
        MOVD    $VCPU_CPU(R8), R9
        ORR     $0xffff000000000000, R9, R9
        // Trigger sigill. 触发sigill
        // In ring0.Start(), the value of R8 will be stored into tpidr_el1.
        // When the context was loaded into vcpu successfully,
        // we will check if the value of R10 and R9 are the same.
        WORD    $0xd538d08a // MRS TPIDR_EL1, R10
check_vcpu:
        CMP     R10, R9
        BEQ     right_vCPU
wrong_vcpu:
        CALL    ·redpill(SB)
        B       begin
right_vCPU:
        RET

runtime.sigreturn

https://github.com/google/gvisor/issues/25

runtime: newstack at runtime.printlock+0x76 sp=0xc4204cd9f8 stack=[0xc420051000, 0xc420052000]
    morebuf={pc:0x4293d3 sp:0xc4204cda00 lr:0x0}
    sched={pc:0x429d66 sp:0xc4204cd9f8 lr:0x0 ctxt:0x0}
runtime.throw(0xb2537f, 0x8)
    GOROOT/src/runtime/panic.go:610 +0x13 fp=0xc4204cda20 sp=0xc4204cda00 pc=0x4293d3
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.bluepillHandler(0xc4204cdac0)
    pkg/sentry/platform/kvm/bluepill_unsafe.go:168 +0x38a fp=0xc4204cdab0 sp=0xc4204cda20 pc=0x81e79a
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.sighandler(0x7, 0x0, 0xc4204c6000, 0x0, 0x8000, 0xc42008c418, 0xc42008c498, 0x1, 0xc42008c410, 0xc42008c410, ...)
    pkg/sentry/platform/kvm/bluepill_amd64.s:79 +0x24 fp=0xc4204cdac0 sp=0xc4204cdab0 pc=0x82c254
runtime: unexpected return pc for runtime.sigreturn called from 0x7
stack: frame={sp:0xc4204cdac0, fp:0xc4204cdac8} stack=[0xc420051000,0xc420052000)

runtime.sigreturn(0x0, 0xc4204c6000, 0x0, 0x8000, 0xc42008c418, 0xc42008c498, 0x1, 0xc42008c410, 0xc42008c410, 0x0, ...)
    bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib~/src/runtime/sys_linux_amd64.s:444 fp=0xc4204cdac8 sp=0xc4204cdac0 pc=0x457340
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
    pkg/sentry/kernel/task_start.go:251 +0x100
fatal error: runtime: stack split at bad time

runtime stack:
runtime.throw(0xb35d4b, 0x20)
    GOROOT/src/runtime/panic.go:616 +0x81 fp=0xc4204b3e48 sp=0xc4204b3e28 pc=0x429441
runtime.newstack()
    GOROOT/src/runtime/stack.go:954 +0xb61 fp=0xc4204b3fd8 sp=0xc4204b3e48 pc=0x442821
runtime.morestack()
    bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib~/src/runtime/asm_amd64.s:480 +0x89 fp=0xc4204b3fe0 sp=0xc4204b3fd8 pc=0x453669

goroutine 46 [syscall, locked to thread]:
runtime.throw(0xb2537f, 0x8)
    GOROOT/src/runtime/panic.go:610 +0x13 fp=0xc4204cda20 sp=0xc4204cda00 pc=0x4293d3
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.bluepillHandler(0xc4204cdac0)
    pkg/sentry/platform/kvm/bluepill_unsafe.go:168 +0x38a fp=0xc4204cdab0 sp=0xc4204cda20 pc=0x81e79a
gvisor.googlesource.com/gvisor/pkg/sentry/platform/kvm.sighandler(0x7, 0x0, 0xc4204c6000, 0x0, 0x8000, 0xc42008c418, 0xc42008c498, 0x1, 0xc42008c410, 0xc42008c410, ...)
    pkg/sentry/platform/kvm/bluepill_amd64.s:79 +0x24 fp=0xc4204cdac0 sp=0xc4204cdab0 pc=0x82c254
runtime: unexpected return pc for runtime.sigreturn called from 0x7
stack: frame={sp:0xc4204cdac0, fp:0xc4204cdac8} stack=[0xc420051000,0xc420052000)

runtime.sigreturn(0x0, 0xc4204c6000, 0x0, 0x8000, 0xc42008c418, 0xc42008c498, 0x1, 0xc42008c410, 0xc42008c410, 0x0, ...)
    bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/linux_amd64_pure_stripped/stdlib~/src/runtime/sys_linux_amd64.s:444 fp=0xc4204cdac8 sp=0xc4204cdac0 pc=0x457340
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
    pkg/sentry/kernel/task_start.go:251 +0x100

Goroutine bluepillHandler

* Goroutine 269 - User: pkg/sentry/platform/kvm/bluepill_unsafe.go:91 gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler (0x87b300) (thread 950040)

启动容器，没有bluepillHandler
docker run --runtime=runsc-kvm --rm --name=test -d alpine sleep 1000

(dlv) goroutines
  Goroutine 1 - User: GOROOT/src/runtime/sema.go:56 sync.runtime_Semacquire (0x73ac8) [semacquire]
  Goroutine 2 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [force gc (idle)]
  Goroutine 3 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC sweep wait]
  Goroutine 4 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC scavenge wait]
  Goroutine 5 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 6 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 17 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [finalizer wait]
  Goroutine 18 - User: GOROOT/src/runtime/proc.go:312 sync.runtime_notifyListWait (0x73d7c) [sync.Cond.Wait]
  Goroutine 19 - User: pkg/sentry/kernel/timekeeper.go:218 gvisor.dev/gvisor/pkg/sentry/kernel.(*Timekeeper).startUpdater.func1 (0x53c204) [select]
  Goroutine 20 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 21 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 22 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 23 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 24 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 25 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 26 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 27 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 28 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 29 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 30 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 31 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 32 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 33 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 34 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 35 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 36 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 37 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 38 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 39 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 40 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 41 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 42 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 43 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 44 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 45 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 46 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 47 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 48 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 49 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 50 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 51 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 52 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 53 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 54 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 55 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 56 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 57 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 58 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 59 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 60 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 61 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 62 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 63 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 64 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 65 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 66 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 67 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 68 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 69 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 70 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 71 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 72 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 73 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 74 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 75 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 76 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 77 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 78 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 79 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 80 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 81 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 82 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 83 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 84 - User: pkg/sentry/watchdog/watchdog.go:237 gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).waitForStart (0x6b8aac) [chan receive]
* Goroutine 85 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950342)
  Goroutine 87 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 88 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 89 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 90 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 91 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 92 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 93 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 94 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 95 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 96 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 97 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 98 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 99 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 100 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 101 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 102 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 103 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 104 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 105 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 106 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 107 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 108 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 109 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 110 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 111 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 112 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 113 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 114 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 115 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 116 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 117 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 118 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 119 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 120 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 121 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 122 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 123 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 124 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 125 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 126 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 127 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 128 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 129 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 130 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 131 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 132 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 133 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 134 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 135 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 136 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 137 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 138 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 139 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 140 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 141 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 142 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 143 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 144 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 145 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 146 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 147 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 148 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 149 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 150 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 151 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 152 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 153 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 154 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 155 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 156 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 157 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 158 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 159 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 160 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 161 - User: pkg/tcpip/link/rawfile/rawfile_unsafe.go:164 gvisor.dev/gvisor/pkg/tcpip/link/rawfile.BlockingRecvMMsg (0x86b784) (thread 950362) [GC assist marking]
  Goroutine 162 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 163 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 164 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 165 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 166 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 167 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 168 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 169 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 170 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 171 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 172 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 173 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 174 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 175 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950363)
  Goroutine 176 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 177 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 178 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 179 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 180 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 181 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 182 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 183 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 184 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 185 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 186 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 187 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 188 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 189 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 190 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 191 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 192 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 193 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 194 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 195 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 196 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 197 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 198 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 199 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 200 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 201 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 202 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 203 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 204 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 205 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 206 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 209 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 210 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 211 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 212 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 213 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 214 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 215 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 216 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 217 - User: GOROOT/src/runtime/select.go:547 reflect.rselect (0x73a28) [select]
  Goroutine 218 - User: pkg/sentry/watchdog/watchdog.go:256 gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop (0x6b8cdc) [select]
  Goroutine 219 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 220 - User: pkg/sentry/kernel/task_block.go:148 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).block (0x50a868) [select]
  Goroutine 225 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 226 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 227 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 228 - User: src/syscall/asm_linux_arm64.s:44 syscall.Syscall6 (0x8dcd0) (thread 950414)
  Goroutine 229 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950422)
  Goroutine 230 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950423)
  Goroutine 231 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950419)
  Goroutine 232 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950361)
  Goroutine 241 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [select]
  Goroutine 242 - User: GOROOT/src/runtime/sigqueue.go:147 os/signal.signal_recv (0x74354) (thread 950420)
[217 goroutines]
(dlv) 

执行新的命令，有bluepillHandler 协程

Croot@cloud:~# docker exec -it test ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=42 time=35.091 ms
64 bytes from 8.8.8.8: seq=1 ttl=42 time=32.483 ms
64 bytes from 8.8.8.8: seq=2 ttl=42 time=12.273 ms
64 bytes from 8.8.8.8: seq=3 ttl=42 time=11.812 ms
64 bytes from 8.8.8.8: seq=4 ttl=42 time=26.824 ms
64 bytes from 8.8.8.8: seq=5 ttl=42 time=31.979 ms
64 bytes from 8.8.8.8: seq=6 ttl=42 time=31.998 ms
64 bytes from 8.8.8.8: seq=7 ttl=42 time=13.570 ms

 [217 goroutines]
(dlv) c
received SIGINT, stopping process (will not forward signal)
> syscall.Syscall6() src/syscall/asm_linux_arm64.s:43 (PC: 0x8dccc)
Warning: debugging optimized function
(dlv) goroutines
  Goroutine 1 - User: GOROOT/src/runtime/sema.go:56 sync.runtime_Semacquire (0x73ac8) [semacquire 445346h14m21.09190664s]
  Goroutine 2 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [force gc (idle) 445346h14m21.09193764s]
  Goroutine 3 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC sweep wait]
  Goroutine 4 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC scavenge wait]
  Goroutine 5 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h14m21.091993521s]
  Goroutine 6 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h14m21.092013481s]
  Goroutine 8 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 9 - User: pkg/sentry/kernel/task_block.go:148 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).block (0x50a868) [select]
  Goroutine 17 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [finalizer wait 445346h14m21.092066901s]
  Goroutine 18 - User: GOROOT/src/runtime/proc.go:312 sync.runtime_notifyListWait (0x73d7c) [sync.Cond.Wait 445346h14m21.092086181s]
  Goroutine 19 - User: pkg/sentry/kernel/timekeeper.go:218 gvisor.dev/gvisor/pkg/sentry/kernel.(*Timekeeper).startUpdater.func1 (0x53c204) [select]
  Goroutine 20 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092122161s]
  Goroutine 21 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092141081s]
  Goroutine 22 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092159501s]
  Goroutine 23 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092179061s]
  Goroutine 24 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092197861s]
  Goroutine 25 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092216761s]
  Goroutine 26 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092235281s]
  Goroutine 27 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092254681s]
  Goroutine 28 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092273201s]
  Goroutine 29 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092292102s]
  Goroutine 30 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092310782s]
  Goroutine 31 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092329322s]
  Goroutine 32 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092347862s]
  Goroutine 33 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092366142s]
  Goroutine 34 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092384162s]
  Goroutine 35 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092407902s]
  Goroutine 36 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092426242s]
  Goroutine 37 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092444802s]
  Goroutine 38 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092463742s]
  Goroutine 39 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092483822s]
  Goroutine 40 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092502322s]
  Goroutine 41 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092521002s]
  Goroutine 42 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092539342s]
  Goroutine 43 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092558042s]
  Goroutine 44 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092576682s]
  Goroutine 45 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092594962s]
  Goroutine 46 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092614382s]
  Goroutine 47 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092633103s]
  Goroutine 48 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092651903s]
  Goroutine 49 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092670083s]
  Goroutine 50 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092688203s]
  Goroutine 51 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092706643s]
  Goroutine 52 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092725243s]
  Goroutine 53 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092743763s]
  Goroutine 54 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092762503s]
  Goroutine 55 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092780763s]
  Goroutine 56 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092799563s]
  Goroutine 57 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092817803s]
  Goroutine 58 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092836003s]
  Goroutine 59 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092854563s]
  Goroutine 60 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092873963s]
  Goroutine 61 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092893003s]
  Goroutine 62 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092911283s]
  Goroutine 63 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092931883s]
  Goroutine 64 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092950703s]
  Goroutine 65 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092968844s]
  Goroutine 66 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.092988444s]
  Goroutine 67 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093008344s]
  Goroutine 68 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093027284s]
  Goroutine 69 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093045944s]
  Goroutine 70 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093064544s]
  Goroutine 71 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093096624s]
  Goroutine 72 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093115604s]
  Goroutine 73 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093134224s]
  Goroutine 74 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093159604s]
  Goroutine 75 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093179004s]
  Goroutine 76 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093197464s]
  Goroutine 77 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093215944s]
  Goroutine 78 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093234844s]
  Goroutine 79 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093253464s]
  Goroutine 80 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093272324s]
  Goroutine 81 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093290745s]
  Goroutine 82 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093309265s]
  Goroutine 83 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093327465s]
* Goroutine 85 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950342)
  Goroutine 87 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093363145s]
  Goroutine 88 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093384465s]
  Goroutine 89 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093403605s]
  Goroutine 90 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093422865s]
  Goroutine 91 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093441085s]
  Goroutine 92 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093460105s]
  Goroutine 93 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093478765s]
  Goroutine 94 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093497525s]
  Goroutine 95 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093515885s]
  Goroutine 96 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.093534485s]
  Goroutine 97 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 98 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093568465s]
  Goroutine 99 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093587185s]
  Goroutine 100 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093606065s]
  Goroutine 101 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093624666s]
  Goroutine 102 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093643586s]
  Goroutine 103 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093662386s]
  Goroutine 104 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093681226s]
  Goroutine 105 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093699986s]
  Goroutine 106 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093718386s]
  Goroutine 107 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093736566s]
  Goroutine 108 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093756066s]
  Goroutine 109 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093774646s]
  Goroutine 110 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093792866s]
  Goroutine 111 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093812126s]
  Goroutine 112 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093830946s]
  Goroutine 113 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093849886s]
  Goroutine 114 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093868066s]
  Goroutine 115 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093886466s]
  Goroutine 116 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093904746s]
  Goroutine 117 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093923126s]
  Goroutine 118 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093941626s]
  Goroutine 119 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093960147s]
  Goroutine 120 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.093978447s]
  Goroutine 121 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094003587s]
  Goroutine 122 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094021847s]
  Goroutine 123 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094040247s]
  Goroutine 124 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094059727s]
  Goroutine 125 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094078107s]
  Goroutine 126 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094096527s]
  Goroutine 127 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094114647s]
  Goroutine 128 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094133807s]
  Goroutine 129 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094153507s]
  Goroutine 130 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094172247s]
  Goroutine 131 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094190927s]
  Goroutine 132 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094209687s]
  Goroutine 133 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094228187s]
  Goroutine 134 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094246747s]
  Goroutine 135 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094265507s]
  Goroutine 136 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094283787s]
  Goroutine 137 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094302008s]
  Goroutine 138 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094320768s]
  Goroutine 139 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094339648s]
  Goroutine 140 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094359328s]
  Goroutine 141 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094377948s]
  Goroutine 142 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094396268s]
  Goroutine 143 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094414508s]
  Goroutine 144 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094433088s]
  Goroutine 145 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094451528s]
  Goroutine 146 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094470088s]
  Goroutine 147 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094488188s]
  Goroutine 148 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094507008s]
  Goroutine 149 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094525168s]
  Goroutine 150 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094543568s]
  Goroutine 151 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094561948s]
  Goroutine 152 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094580528s]
  Goroutine 153 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094599008s]
  Goroutine 154 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094618048s]
  Goroutine 155 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094636509s]
  Goroutine 156 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094655129s]
  Goroutine 157 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094677869s]
  Goroutine 158 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094696609s]
  Goroutine 159 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094715969s]
  Goroutine 160 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h14m21.094734529s]
  Goroutine 161 - User: pkg/tcpip/link/rawfile/rawfile_unsafe.go:164 gvisor.dev/gvisor/pkg/tcpip/link/rawfile.BlockingRecvMMsg (0x86b784) (thread 950362) [GC assist marking]
  Goroutine 162 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 163 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 164 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094803369s]
  Goroutine 165 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094821929s]
  Goroutine 166 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094840349s]
  Goroutine 167 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094858649s]
  Goroutine 168 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094877789s]
  Goroutine 169 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094900769s]
  Goroutine 170 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094920029s]
  Goroutine 171 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094938329s]
  Goroutine 172 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.094956609s]
  Goroutine 173 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09497595s]
  Goroutine 174 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09499475s]
  Goroutine 175 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950363)
  Goroutine 176 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h14m21.09502917s]
  Goroutine 177 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 178 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 179 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 180 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 181 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09511243s]
  Goroutine 182 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09513073s]
  Goroutine 183 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09514911s]
  Goroutine 184 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09516729s]
  Goroutine 185 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09518533s]
  Goroutine 186 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09520367s]
  Goroutine 187 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09522169s]
  Goroutine 188 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09523957s]
  Goroutine 189 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09525883s]
  Goroutine 190 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.09527749s]
  Goroutine 191 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095297191s]
  Goroutine 192 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095316531s]
  Goroutine 193 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095335091s]
  Goroutine 194 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 195 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 196 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 197 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095401611s]
  Goroutine 198 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095420251s]
  Goroutine 199 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095439491s]
  Goroutine 200 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095457911s]
  Goroutine 201 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095476211s]
  Goroutine 202 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095494891s]
  Goroutine 203 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095512911s]
  Goroutine 204 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095531031s]
  Goroutine 205 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095549671s]
  Goroutine 206 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095567791s]
  Goroutine 209 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095585891s]
  Goroutine 210 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095604091s]
  Goroutine 211 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095624231s]
  Goroutine 212 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095642812s]
  Goroutine 213 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095662332s]
  Goroutine 214 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095680652s]
  Goroutine 215 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095698952s]
  Goroutine 216 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095717532s]
  Goroutine 217 - User: GOROOT/src/runtime/select.go:547 reflect.rselect (0x73a28) [select 445346h14m21.095735692s]
  Goroutine 218 - User: pkg/sentry/watchdog/watchdog.go:256 gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop (0x6b8cdc) [select 445346h14m21.095754592s]
  Goroutine 219 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 220 - User: pkg/sentry/kernel/task_block.go:148 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).block (0x50a868) [select 445346h14m21.095789512s]
  Goroutine 225 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095807992s]
  Goroutine 226 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095827212s]
  Goroutine 227 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h14m21.095845732s]
  Goroutine 228 - User: src/syscall/asm_linux_arm64.s:44 syscall.Syscall6 (0x8dcd0) (thread 950442)
  Goroutine 229 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950422)
  Goroutine 230 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950423)
  Goroutine 231 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950419)
  Goroutine 232 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950361)
  Goroutine 235 - User: GOROOT/src/runtime/sema.go:56 sync.runtime_Semacquire (0x73ac8) [semacquire]
  Goroutine 241 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [select 445346h14m21.095964793s]
  Goroutine 242 - User: GOROOT/src/runtime/sigqueue.go:147 os/signal.signal_recv (0x74354) (thread 950420)
  Goroutine 243 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
[220 goroutines]
(dlv)

 

中断命令， bluepillHandler 协程结束

(dlv) goroutines
  Goroutine 1 - User: GOROOT/src/runtime/sema.go:56 sync.runtime_Semacquire (0x73ac8) [semacquire 445346h19m17.141844536s]
  Goroutine 2 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [force gc (idle) 445346h17m7.359959572s]
  Goroutine 3 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC sweep wait]
  Goroutine 4 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC scavenge wait]
  Goroutine 5 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h19m17.141942457s]
  Goroutine 6 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h19m17.141966877s]
  Goroutine 17 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [finalizer wait 445346h19m17.141989097s]
  Goroutine 18 - User: GOROOT/src/runtime/proc.go:312 sync.runtime_notifyListWait (0x73d7c) [sync.Cond.Wait]
  Goroutine 19 - User: pkg/sentry/kernel/timekeeper.go:218 gvisor.dev/gvisor/pkg/sentry/kernel.(*Timekeeper).startUpdater.func1 (0x53c204) [select]
  Goroutine 20 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142051057s]
  Goroutine 21 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142074877s]
  Goroutine 22 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142095677s]
  Goroutine 23 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142119097s]
  Goroutine 24 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142139837s]
  Goroutine 25 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142160437s]
  Goroutine 26 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142180817s]
  Goroutine 27 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142201158s]
  Goroutine 28 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142222118s]
  Goroutine 29 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142243078s]
  Goroutine 30 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142262878s]
  Goroutine 31 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142282978s]
  Goroutine 32 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142303858s]
  Goroutine 33 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142324478s]
  Goroutine 34 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142345258s]
  Goroutine 35 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142365958s]
  Goroutine 36 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142386758s]
  Goroutine 37 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142409138s]
  Goroutine 38 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142430098s]
  Goroutine 39 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142450698s]
  Goroutine 40 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142470698s]
  Goroutine 41 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142490998s]
  Goroutine 42 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142510939s]
  Goroutine 43 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142535559s]
  Goroutine 44 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142556299s]
  Goroutine 45 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142604539s]
  Goroutine 46 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142625919s]
  Goroutine 47 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142646659s]
  Goroutine 48 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142667539s]
  Goroutine 49 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142687979s]
  Goroutine 50 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142708379s]
  Goroutine 51 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142730659s]
  Goroutine 52 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142751379s]
  Goroutine 53 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142772159s]
  Goroutine 54 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142798199s]
  Goroutine 55 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.142819039s]
  Goroutine 56 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14283934s]
  Goroutine 57 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14286014s]
  Goroutine 58 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14288058s]
  Goroutine 59 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14290146s]
  Goroutine 60 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14292136s]
  Goroutine 61 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.1429418s]
  Goroutine 62 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14296222s]
  Goroutine 63 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14298504s]
  Goroutine 64 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14300524s]
  Goroutine 65 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143026s]
  Goroutine 66 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14304626s]
  Goroutine 67 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14306676s]
  Goroutine 68 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.1430876s]
  Goroutine 69 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.14310784s]
  Goroutine 70 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.1431281s]
  Goroutine 71 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143149161s]
  Goroutine 72 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143169761s]
  Goroutine 73 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143189921s]
  Goroutine 74 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143210641s]
  Goroutine 75 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143230521s]
  Goroutine 76 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143253281s]
  Goroutine 77 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143273761s]
  Goroutine 78 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143293801s]
  Goroutine 79 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143313901s]
  Goroutine 80 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143334261s]
  Goroutine 81 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143355281s]
  Goroutine 82 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143377721s]
  Goroutine 83 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143398381s]
* Goroutine 85 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950342)
  Goroutine 87 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143476502s]
  Goroutine 88 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143497442s]
  Goroutine 89 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143517942s]
  Goroutine 90 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143537702s]
  Goroutine 91 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143558042s]
  Goroutine 92 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143578742s]
  Goroutine 93 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143599222s]
  Goroutine 94 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143619922s]
  Goroutine 95 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143639702s]
  Goroutine 96 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.143660402s]
  Goroutine 97 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select]
  Goroutine 98 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143697982s]
  Goroutine 99 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143718982s]
  Goroutine 100 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143739562s]
  Goroutine 101 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143760362s]
  Goroutine 102 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143780703s]
  Goroutine 103 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143800763s]
  Goroutine 104 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143828363s]
  Goroutine 105 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143848763s]
  Goroutine 106 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143870423s]
  Goroutine 107 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143890743s]
  Goroutine 108 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143911883s]
  Goroutine 109 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143931803s]
  Goroutine 110 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143951863s]
  Goroutine 111 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143972003s]
  Goroutine 112 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.143994043s]
  Goroutine 113 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144014123s]
  Goroutine 114 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144034483s]
  Goroutine 115 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144054743s]
  Goroutine 116 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144075563s]
  Goroutine 117 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144099524s]
  Goroutine 118 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144120804s]
  Goroutine 119 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144141084s]
  Goroutine 120 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144161604s]
  Goroutine 121 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144182864s]
  Goroutine 122 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144203204s]
  Goroutine 123 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144223864s]
  Goroutine 124 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144243924s]
  Goroutine 125 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144266324s]
  Goroutine 126 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144287064s]
  Goroutine 127 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144307624s]
  Goroutine 128 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144327784s]
  Goroutine 129 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144348184s]
  Goroutine 130 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144368364s]
  Goroutine 131 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144388684s]
  Goroutine 132 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144409184s]
  Goroutine 133 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144429285s]
  Goroutine 134 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144449805s]
  Goroutine 135 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144470625s]
  Goroutine 136 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144492425s]
  Goroutine 137 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144513005s]
  Goroutine 138 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144533345s]
  Goroutine 139 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144553725s]
  Goroutine 140 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144582625s]
  Goroutine 141 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144604265s]
  Goroutine 142 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144624605s]
  Goroutine 143 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144645245s]
  Goroutine 144 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144665465s]
  Goroutine 145 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144686125s]
  Goroutine 146 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144707685s]
  Goroutine 147 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144728105s]
  Goroutine 148 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144748646s]
  Goroutine 149 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144769626s]
  Goroutine 150 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144791346s]
  Goroutine 151 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144811886s]
  Goroutine 152 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144833626s]
  Goroutine 153 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144854146s]
  Goroutine 154 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144874826s]
  Goroutine 155 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144895206s]
  Goroutine 156 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144920046s]
  Goroutine 157 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144941126s]
  Goroutine 158 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144961266s]
  Goroutine 159 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.144981966s]
  Goroutine 160 - User: pkg/sync/runtime_unsafe.go:40 gvisor.dev/gvisor/pkg/sleep.(*Sleeper).nextWaker (0x5cfd44) [select 445346h19m17.145002466s]
  Goroutine 161 - User: pkg/tcpip/link/rawfile/rawfile_unsafe.go:164 gvisor.dev/gvisor/pkg/tcpip/link/rawfile.BlockingRecvMMsg (0x86b784) (thread 950362) [GC assist marking]
  Goroutine 162 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h17m7.363121701s]
  Goroutine 163 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h17m7.363141822s]
  Goroutine 164 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 165 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 166 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145121087s]
  Goroutine 167 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145141467s]
  Goroutine 168 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145175147s]
  Goroutine 169 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145196007s]
  Goroutine 170 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145216667s]
  Goroutine 171 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145236807s]
  Goroutine 172 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145257347s]
  Goroutine 173 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145278467s]
  Goroutine 174 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145298747s]
  Goroutine 175 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950363)
  Goroutine 176 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select 445346h19m17.145336507s]
  Goroutine 177 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h17m7.363439042s]
  Goroutine 178 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 179 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 180 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 181 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 182 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145456508s]
  Goroutine 183 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145478008s]
  Goroutine 184 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145498308s]
  Goroutine 185 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145519088s]
  Goroutine 186 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145541588s]
  Goroutine 187 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145561988s]
  Goroutine 188 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145582548s]
  Goroutine 189 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145602528s]
  Goroutine 190 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145622928s]
  Goroutine 191 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145645188s]
  Goroutine 192 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145666108s]
  Goroutine 193 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 194 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 195 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h17m7.363805904s]
  Goroutine 196 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle)]
  Goroutine 197 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145767389s]
  Goroutine 198 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145790209s]
  Goroutine 199 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145814309s]
  Goroutine 200 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145835249s]
  Goroutine 201 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145855649s]
  Goroutine 202 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145876569s]
  Goroutine 203 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145896389s]
  Goroutine 204 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145916869s]
  Goroutine 205 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145937169s]
  Goroutine 206 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145960669s]
  Goroutine 209 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.145981329s]
  Goroutine 210 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.146001569s]
  Goroutine 211 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14602173s]
  Goroutine 212 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14604311s]
  Goroutine 213 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14606563s]
  Goroutine 214 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14608671s]
  Goroutine 215 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14610697s]
  Goroutine 216 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14613021s]
  Goroutine 217 - User: GOROOT/src/runtime/select.go:547 reflect.rselect (0x73a28) [select 445346h19m17.14615035s]
  Goroutine 218 - User: pkg/sentry/watchdog/watchdog.go:256 gvisor.dev/gvisor/pkg/sentry/watchdog.(*Watchdog).loop (0x6b8cdc) [select]
  Goroutine 219 - User: pkg/sentry/kernel/time/time.go:515 gvisor.dev/gvisor/pkg/sentry/kernel/time.(*Timer).runGoroutine (0x300118) [select]
  Goroutine 220 - User: pkg/sentry/kernel/task_block.go:148 gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).block (0x50a868) [select 445346h19m17.14621065s]
  Goroutine 225 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14623103s]
  Goroutine 226 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14625335s]
  Goroutine 227 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [GC worker (idle) 445346h19m17.14627343s]
  Goroutine 228 - User: src/syscall/asm_linux_arm64.s:44 syscall.Syscall6 (0x8dcd0) (thread 950442)
  Goroutine 229 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950422)
  Goroutine 230 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950423)
  Goroutine 231 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950419)
  Goroutine 232 - User: src/syscall/asm_linux_arm64.s:43 syscall.Syscall6 (0x8dccc) (thread 950361)
  Goroutine 241 - User: GOROOT/src/runtime/proc.go:307 runtime.gopark (0x450c0) [select 445346h19m17.146382551s]
  Goroutine 242 - User: GOROOT/src/runtime/sigqueue.go:147 os/signal.signal_recv (0x74354) (thread 950420)
[216 goroutines]
(dlv) 

 b RtSigreturn

 创建容器

root@cloud:~/gvisor/pkg#  docker run --runtime=runsc-kvm --rm --name=test -d alpine sleep 1000
4ce4523d1c232ae331e00b87a183bb232c3b3bef989f86633c7fb78d3d4872fe
root@cloud:~/gvisor/pkg# 

 设置断点

(dlv) b RtSigreturn
Breakpoint 2 set at 0x586900 for gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281
(dlv) c

在没有执行  docker exec -it test ping 8.8.8.8情况下，断点不会执行

 (dlv) b SignalRestore
Breakpoint 3 set at 0x281d54 for gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151 (hits goroutine(248):1 total:1) (PC: 0x281d54)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000281d54 in gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore
   at pkg/sentry/arch/signal_arm64.go:151
1  0x000000000051d138 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SignalReturn
   at pkg/sentry/kernel/task_signals.go:306
2  0x0000000000586920 in gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn
   at pkg/sentry/syscalls/linux/sys_signal.go:282
3  0x0000000000522ea4 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall
   at pkg/sentry/kernel/task_syscall.go:104
4  0x0000000000523c5c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke
   at pkg/sentry/kernel/task_syscall.go:239
5  0x00000000005238dc in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter
   at pkg/sentry/kernel/task_syscall.go:199
6  0x00000000005233e0 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall
   at pkg/sentry/kernel/task_syscall.go:174
7  0x0000000000518e00 in gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute
   at pkg/sentry/kernel/task_run.go:282
8  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
   at pkg/sentry/kernel/task_run.go:97
9  0x0000000000077c84 in runtime.goexit
   at src/runtime/asm_arm64.s:1136
(dlv) 

// SignalReturn implements sigreturn(2) (if rt is false) or rt_sigreturn(2) (if
// rt is true).

SignalRestore implements Context.SignalRestore.
func (c *context64) SignalRestore(st *Stack, rt bool) (linux.SignalSet, SignalStack, error) {
        // Copy out the stack frame.
        var uc UContext64
        if _, err := uc.CopyIn(st, StackBottomMagic); err != nil {
                return 0, SignalStack{}, err
        }
        var info SignalInfo
        if _, err := info.CopyIn(st, StackBottomMagic); err != nil {
                return 0, SignalStack{}, err
        }

        // Restore registers.
        c.Regs.Regs = uc.MContext.Regs
        c.Regs.Pc = uc.MContext.Pc
        c.Regs.Sp = uc.MContext.Sp
        c.Regs.Pstate = uc.MContext.Pstate

        // Restore floating point state.
        l := len(c.sigFPState)
        if l > 0 {
                c.aarch64FPState = c.sigFPState[l-1]
                // NOTE(cl/133042258): State save requires that any slice
                // elements from '[len:cap]' to be zero value.
                c.sigFPState[l-1] = nil
                c.sigFPState = c.sigFPState[0 : l-1]
        } else {
                // This might happen if sigreturn(2) calls are unbalanced with
                // respect to signal handler entries. This is not expected so
                // don't bother to do anything fancy with the floating point
                // state.
                log.Warningf("sigreturn unable to restore application fpstate")
        }

        return uc.Sigset, uc.Stack, nil
}

RtSigreturn

// SignalReturn implements sigreturn(2) (if rt is false) or rt_sigreturn(2) (if
// rt is true).
func (t *Task) SignalReturn(rt bool) (*SyscallControl, error) {
        st := t.Stack()
        sigset, alt, err := t.Arch().SignalRestore(st, rt)
        if err != nil {
                return nil, err
        }

        // Attempt to record the given signal stack. Note that we silently
        // ignore failures here, as does Linux. Only an EFAULT may be
        // generated, but SignalRestore has already deserialized the entire
        // frame successfully.
        t.SetSignalStack(alt)

        // Restore our signal mask. SIGKILL and SIGSTOP should not be blocked.
        t.SetSignalMask(sigset &^ UnblockableSignals)
        t.p.FullStateChanged()

        return ctrlResume, nil
}

创建容器

root@cloud:~/gvisor/pkg#  docker run --runtime=runsc-kvm --rm --name=test -d alpine sleep 1000
4ce4523d1c232ae331e00b87a183bb232c3b3bef989f86633c7fb78d3d4872fe
root@cloud:~/gvisor/pkg#

设置断点

(dlv) b RtSigreturn
Breakpoint 2 set at 0x586900 for gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281
(dlv) c

没有执行docker exec -it test ping 8.8.8.8，断点不会被调用

执行docker exec -it test ping 8.8.8.8，断点被调用

(dlv) b RtSigreturn
Breakpoint 2 set at 0x586900 for gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281 (hits goroutine(248):1 total:1) (PC: 0x586900)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000586900 in gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn
   at pkg/sentry/syscalls/linux/sys_signal.go:281
1  0x0000000000522ea4 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall
   at pkg/sentry/kernel/task_syscall.go:104
2  0x0000000000523c5c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke
   at pkg/sentry/kernel/task_syscall.go:239
3  0x00000000005238dc in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter
   at pkg/sentry/kernel/task_syscall.go:199
4  0x00000000005233e0 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall
   at pkg/sentry/kernel/task_syscall.go:174
5  0x0000000000518e00 in gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute
   at pkg/sentry/kernel/task_run.go:282
6  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
   at pkg/sentry/kernel/task_run.go:97
7  0x0000000000077c84 in runtime.goexit
   at src/runtime/asm_arm64.s:1136
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281 (hits goroutine(248):2 total:2) (PC: 0x586900)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000586900 in gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn
   at pkg/sentry/syscalls/linux/sys_signal.go:281
1  0x0000000000522ea4 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall
   at pkg/sentry/kernel/task_syscall.go:104
2  0x0000000000523c5c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke
   at pkg/sentry/kernel/task_syscall.go:239
3  0x00000000005238dc in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter
   at pkg/sentry/kernel/task_syscall.go:199
4  0x00000000005233e0 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall
   at pkg/sentry/kernel/task_syscall.go:174
5  0x0000000000518e00 in gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute
   at pkg/sentry/kernel/task_run.go:282
6  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
   at pkg/sentry/kernel/task_run.go:97
7  0x0000000000077c84 in runtime.goexit
   at src/runtime/asm_arm64.s:1136
(dlv) clear
Command failed: not enough arguments
(dlv) clearall
Breakpoint 2 cleared at 0x586900 for gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn() pkg/sentry/syscalls/linux/sys_signal.go:281
(dlv) b SignalRestore
Breakpoint 3 set at 0x281d54 for gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151 (hits goroutine(248):1 total:1) (PC: 0x281d54)
Warning: debugging optimized function
(dlv) bt
0  0x0000000000281d54 in gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore
   at pkg/sentry/arch/signal_arm64.go:151
1  0x000000000051d138 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SignalReturn
   at pkg/sentry/kernel/task_signals.go:306
2  0x0000000000586920 in gvisor.dev/gvisor/pkg/sentry/syscalls/linux.RtSigreturn
   at pkg/sentry/syscalls/linux/sys_signal.go:282
3  0x0000000000522ea4 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall
   at pkg/sentry/kernel/task_syscall.go:104
4  0x0000000000523c5c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke
   at pkg/sentry/kernel/task_syscall.go:239
5  0x00000000005238dc in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter
   at pkg/sentry/kernel/task_syscall.go:199
6  0x00000000005233e0 in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall
   at pkg/sentry/kernel/task_syscall.go:174
7  0x0000000000518e00 in gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute
   at pkg/sentry/kernel/task_run.go:282
8  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
   at pkg/sentry/kernel/task_run.go:97
9  0x0000000000077c84 in runtime.goexit
   at src/runtime/asm_arm64.s:1136

(dlv) b bluepillHandler
Breakpoint 3 set at 0x87b300 for gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91
(dlv) b SignalRestore
Breakpoint 4 set at 0x281d54 for gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):1 total:1) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):2 total:2) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):3 total:3) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151 (hits goroutine(259):1 total:1) (PC: 0x281d54)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):4 total:4) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):5 total:5) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):6 total:6) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):7 total:7) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler() pkg/sentry/platform/kvm/bluepill_unsafe.go:91 (hits goroutine(259):8 total:8) (PC: 0x87b300)
Warning: debugging optimized function
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/arch.(*context64).SignalRestore() pkg/sentry/arch/signal_arm64.go:151 (hits goroutine(259):2 total:2) (PC: 0x281d54)
Warning: debugging optimized function
(dlv) c

bluepillArchEnter bluepillArchExit

root@cloud:~# docker exec -it test ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=42 time=14.428 ms
64 bytes from 8.8.8.8: seq=1 ttl=42 time=24.014 ms
64 bytes from 8.8.8.8: seq=2 ttl=42 time=11.613 ms
64 bytes from 8.8.8.8: seq=3 ttl=42 time=11.333 ms
64 bytes from 8.8.8.8: seq=4 ttl=42 time=11.457 ms
64 bytes from 8.8.8.8: seq=5 ttl=42 time=24.010 ms
64 bytes from 8.8.8.8: seq=6 ttl=42 time=11.425 ms
64 bytes from 8.8.8.8: seq=7 ttl=42 time=11.745 ms
64 bytes from 8.8.8.8: seq=8 ttl=42 time=11.259 ms
64 bytes from 8.8.8.8: seq=9 ttl=42 time=11.278 ms

root@cloud:~# dlv attach 952413
Type 'help' for list of commands.
(dlv) b bluepillArchEnter
Breakpoint 1 set at 0x87aa00 for gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchEnter() pkg/sentry/platform/kvm/bluepill_arm64.go:67
(dlv) b bluepillArchExit
Breakpoint 2 set at 0x87aa90 for gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchExit() pkg/sentry/platform/kvm/bluepill_arm64.go:84
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchEnter() pkg/sentry/platform/kvm/bluepill_arm64.go:67 (hits goroutine(274):1 total:1) (PC: 0x87aa00)
Warning: debugging optimized function
(dlv) bt
 0  0x000000000087aa00 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchEnter
    at pkg/sentry/platform/kvm/bluepill_arm64.go:67
 1  0x000000000087b324 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler
    at pkg/sentry/platform/kvm/bluepill_unsafe.go:93
 2  0x0000000000881bec in ???
    at ?:-1
 3  0x0000ffffb4459598 in ???
    at ?:-1
 4  0x000000000087f514 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser
    at pkg/sentry/platform/kvm/machine_arm64_unsafe.go:249
 5  0x0000000000000d08 in ???
    at ?:-1
 6  0x000000000087bb1c in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*context).Switch
    at pkg/sentry/platform/kvm/context.go:75
 7  0x00000040001aa000 in ???
    at ?:-1
 8  0x0000000000517d9c in gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run
    at pkg/sentry/kernel/task_run.go:97
 9  0x00000040006373f0 in ???
    at ?:-1
    error: input/output error
(truncated)
(dlv) c
> gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchExit() pkg/sentry/platform/kvm/bluepill_arm64.go:84 (hits goroutine(274):1 total:1) (PC: 0x87aa90)
Warning: debugging optimized function
(dlv) bt
0  0x000000000087aa90 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillArchExit
   at pkg/sentry/platform/kvm/bluepill_arm64.go:84
1  0x000000000087b284 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillGuestExit
   at pkg/sentry/platform/kvm/bluepill_unsafe.go:69
2  0x000000000087b61c in gvisor.dev/gvisor/pkg/sentry/platform/kvm.bluepillHandler
   at pkg/sentry/platform/kvm/bluepill_unsafe.go:183
3  0x0000000000881bec in ???
   at ?:-1
4  0x0000ffffb4459598 in ???
   at ?:-1
5  0x000000000087f514 in gvisor.dev/gvisor/pkg/sentry/platform/kvm.(*vCPU).SwitchToUser
   at pkg/sentry/platform/kvm/machine_arm64_unsafe.go:249
6  0x0000000000000d08 in ???
   at ?:-1
7  0x000000400050f000 in ???
   at ?:-1