根据网上资料显示：我尝试过，貌似没解决问题

有可能是linux的线程机制会产生JVM出错的问题，特别是在连接高峰期间经常出现这样的问题，tomcat在linux下也出现类似情况。
　　解决办法是在环境变量中设置： _JAVA_SR_SIGNUM = 12 基本就可以解决。

在WIN环境变量中设置： _JAVA_SR_SIGNUM=12, 若Linux下用 export _JAVA_SR_SIGNUM=12, 基本就可以解决. 
　　sun的解释：
　　－－posted by: cooper 
　　Below is a clipping from Sun on working around JVM crashes under high 
　　thread counts in the JVM 1.3 for Linux 
　　On Linux, use a larger signal number for hotspot thread 
　　suspension/resumption handler. The signal number being used is 
　　specified by environment variable _JAVA_SR_SIGNUM. Setting it to a 
　　number larger than SIGSEGV (11) will solve the PRoblem. A good number 
　　to use is 12, which is SIGUSR2. Using signal 16 to work around the 
　　problem might have potential problems. So on tcsh, "setenv 
　　_JAVA_SR_SIGNUM 12" can solve the problem.