[Web Server] APACHE Log childpidXXXXXXexitsignalSegmentationfault (11) Solution

The newly opened vps is centos6. Configure the web server as usual, as shown below:

httpd/2.2.15php/5.3.3 with eAccelerator with Zend Guard Loader v3.3

After modifying the apache configuration file, it is customary to check the configuration file first.

/etc/init.d/httpd configtest

Everything works, and then reload the configuration file.

/etc/init.d/httpd reload

Everything was supposed to be correct. I couldn't open the website for testing. I checked the apache running status and went down.

/etc/init.d/httpd status

It seems that there is a problem. Baidu and google have no effect after a while. manually enable apache. After testing, only reload will be suspended and will be put on hold for the moment. Let's put the website online first. After several days of running, there is no indication of sudden disconnection. in error_log, there are a large number of errors with the notice level:

[Wed Apr 09 00:10:17 2014] [notice] child pid 14786 exit signal Segmentation fault (11)

Today, the new vps is updated. After the same configuration, the above phenomena are reproduced, and then try to find out the cause.

First, adjust the apache error log to the debug level. After trying the reload command, the error persists, but no exception is recorded in the log.

Then I remembered to view the system log:

tail -f /var/log/messages

Two php-related errors are displayed:

Apr  9 15:57:15 localhost kernel: php[4924]: segfault at 65fd47 ip 0065fd47 sp bfa63660 error 14 in libkrb5.so.3.3[765000+d6000]Apr  9 16:00:20 localhost kernel: php[4934]: segfault at d8ed47 ip 00d8ed47 sp bfbaa830 error 14 in libpthread-2.12.so[f22000+17000]

Then I first thought about zendGuardLoader. in php. ini, I commented out the previously added zend configuration, restarted apache, and tested it again. Everything went fine.

From this point of view, it may be caused by some problems of php installed by rpm, coupled with zendguardLoader, which causes apache to be affected.

I don't know much about this one, so I can only say so. If you know this one, you can give me some advice.