php-Wamp Apache间歇性假死

phpwampapacheapache配置windows下apache间歇性假死。症状：两到三天会停一次，重启apache后又正常。错误日志：[thu nov 06 09:59:40 2014] warn指定的网络名不再可用。 : winnt_accept: asynchronous acceptex failed.[thu nov 06 12:03:14 2014] warn指定的网络名不再可用。 : winnt_accept: asynchronous acceptex failed.[thu nov 06 12:06:13 2014] [notice] parent: received shutdown signal -- shutting down the server.[thu nov 06 12:06:13 2014] [notice] child 65812: exit event signaled. child process is ending.[thu nov 06 12:06:14 2014] [notice] child 65812: released the start mutex[thu nov 06 12:06:43 2014] [notice] parent: forcing termination of child process 2e8[thu nov 06 12:06:43 2014] [notice] apache/2.2.21 (win32) php/5.3.10 configured -- resuming normal operations[thu nov 06 12:06:43 2014] [notice] server built: sep 10 2011 11:34:11[thu nov 06 12:06:43 2014] [notice] parent: created child process 80048[thu nov 06 12:06:44 2014] [notice] child 80048: child process is running[thu nov 06 12:06:44 2014] [notice] child 80048: acquired the start mutex.[thu nov 06 12:06:44 2014] [notice] child 80048: starting 64 worker threads.[thu nov 06 12:06:44 2014] [notice] child 80048: starting thread to listen on port 80.[thu nov 06 12:14:30 2014] [warn] server ran out of threads to serve requests. consider raising the threadsperchild setting[thu nov 06 14:27:32 2014] warn指定的网络名不再可用。 : winnt_accept: asynchronous acceptex failed.[thu nov 06 14:27:32 2014] warn指定的网络名不再可用。 : winnt_accept: asynchronous acceptex failed..........[Sun Nov 09 16:07:37 2014] warn指定的网络名不再可用。 : winnt_accept: Asynchronous AcceptEx failed.[Sun Nov 09 16:07:38 2014] warn指定的网络名不再可用。 : winnt_accept: Asynchronous AcceptEx failed.[Sun Nov 09 16:07:38 2014] warn指定的网络名不再可用。 : winnt_accept: Asynchronous AcceptEx failed.[Sun Nov 09 16:07:38 2014] warn指定的网络名不再可用。 : winnt_accept: Asynchronous AcceptEx failed.[Sun Nov 09 17:05:34 2014] [notice] Parent: Received shutdown signal -- Shutting down the server.[Sun Nov 09 17:05:34 2014] [notice] Child 80048: Exit event signaled. Child process is ending.[Sun Nov 09 17:05:35 2014] [notice] Child 80048: Released the start mutex