FPM配置请看下面

8 children, there are 10 idle, and 118 total children
[26-Apr-2012 20:52:41] WARNING: [pool www] seems busy (you may need to increase start_servers, or min/max_spare_servers), spawning 8 children, there are 15 idle, and 107 total children
[26-Apr-2012 20:52:42] WARNING: [pool www] seems busy (you may need to increase start_servers, or min/max_spare_servers), spawning 16 children, there are 0 idle, and 112 total children
[26-Apr-2012 20:52:43] WARNING: [pool www] seems busy (you may need to increase start_servers, or min/max_spare_servers), spawning 32 children, there are 19 idle, and 128 total children
[26-Apr-2012 20:53:06] WARNING: [pool www] seems busy (you may need to increase start_servers, or min/max_spare_servers), spawning 8 children, there are 0 idle, and 142 total children
[26-Apr-2012 21:41:01] WARNING: [pool www] seems busy (you may need to increase start_servers, or min/max_spare_servers), spawning 8 children, there are 0 idle, and 108 total children
[26-Apr-2012 23:08:06] WARNING: [pool www] child 2703 exited on signal 11 (SIGSEGV) after 8123.959251 seconds from start
[26-Apr-2012 23:08:06] NOTICE: [pool www] child 2807 started
[27-Apr-2012 00:04:24] NOTICE: Terminating ...
[27-Apr-2012 00:04:24] NOTICE: exiting, bye-bye!
[27-Apr-2012 00:04:44] NOTICE: configuration file /etc/php5/fpm/php-fpm.conf test is successful

什么原因啊？