tomcat启动报错There is insufficient memory for the Java Runtime Environment to continue

tomcat启动报错后显示以下错误

#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (malloc) failed to allocate 1297136 bytes for Chunk::new
# An error report file with more information is saved as:
# D:apache-tomcat-6.0.53inhs_err_pid44888.log
Disconnected from the target VM, address: '127.0.0.1:62185', transport: 'socket'
Disconnected from server

这是由于tomcat启动内存不足，需要增加tomcat启动内存，如果是IDEA开发工具的话  增加  ： -server -XX:PermSize=256M -XX:MaxPermSize=512M