Error Log Segmentation Fault 11
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Segmentation Fault 11 Node
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Sign up “[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed] up vote 65 down vote favorite 14 I am using Apache/PHP/MySQL stack. Using as framework CakePHP. Every now and then I get a blank white page. I can't debug it through Cake, so I peek in the apache error.log and here's what I get: [Wed Oct 12 segmentation fault 11 xcode 7 15:27:23 2011] [notice] child pid 3580 exit signal Segmentation fault (11) [Wed Oct 12 15:27:34 2011] [notice] child pid 3581 exit signal Segmentation fault (11) [Wed Oct 12 15:30:52 2011] [notice] child pid 3549 exit signal Segmentation fault (11) [Wed Oct 12 16:04:27 2011] [notice] child pid 3579 exit signal Segmentation fault (11) zend_mm_heap corrupted [Wed Oct 12 16:26:24 2011] [notice] child pid 3625 exit signal Segmentation fault (11) [Wed Oct 12 17:57:24 2011] [notice] child pid 3577 exit signal Segmentation fault (11) [Wed Oct 12 17:58:54 2011] [notice] child pid 3550 exit signal Segmentation fault (11) [Wed Oct 12 17:59:52 2011] [notice] child pid 3578 exit signal Segmentation fault (11) [Wed Oct 12 18:01:38 2011] [notice] child pid 3683 exit signal Segmentation fault (11) [Wed Oct 12 22:20:53 2011] [notice] child pid 3778 exit signal Segmentation fault (11) [Wed Oct 12 22:29:51 2011] [notice] child pid 3777 exit signal Segmentation fault (11) [Wed Oct 12 22:33:42 2011] [notice] child pid 3774 exit signal Segmentation fault (11) What is this segmentation fault, how can I fix this, I have no clue and would be greatfull
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Learn more about Stack Overflow the company Business Learn more about hiring developers or segmentation fault 11 caffe posting ads with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is segmentation fault 11 c++ mac a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody http://stackoverflow.com/questions/7745578/notice-child-pid-xxxx-exit-signal-segmentation-fault-11-in-apache-error-lo can answer The best answers are voted up and rise to the top Apache and php not working child pid xxx exit signal Segmentation fault (11) up vote 2 down vote favorite After making a change to my php.ini file I got the error messages as shown below. vim /etc/php.ini ; Maximum amount of memory a script may consume (128MB) ; http://www.php.net/manual/en/ini.core.php#ini.memory-limit memory_limit = 1536 Apache starts, but it http://unix.stackexchange.com/questions/199561/apache-and-php-not-working-child-pid-xxx-exit-signal-segmentation-fault-11 won't server any of my virtual hosts, which it was doing previously. I am not seeing any php error listed any where. I am not sure what I need to do to fix this. Thu Apr 30 08:29:06 2015] [notice] caught SIGTERM, shutting down [Thu Apr 30 08:29:07 2015] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Thu Apr 30 08:29:07 2015] [notice] Digest: generating secret for digest authentication ... [Thu Apr 30 08:29:07 2015] [notice] Digest: done [Thu Apr 30 08:29:07 2015] [warn] Init: Name-based SSL virtual hosts only work for clients with TLS server name indication support (RFC 4366) [Thu Apr 30 08:29:07 2015] [notice] Apache/2.2.15 (Unix) PHP/5.3.3 mod_ssl/2.2.15 OpenSSL/1.0.0-fips configured -- resuming normal operations [Thu Apr 30 08:29:12 2015] [notice] child pid 35160 exit signal Segmentation fault (11) [Thu Apr 30 08:29:12 2015] [notice] child pid 35161 exit signal Segmentation fault (11) [Thu Apr 30 08:29:12 2015] [notice] child pid 35163 exit signal Segmentation fault (11) [Thu Apr 30 08:29:13 2015] [notice] child pid 35164 exit signal Segmentation fault (11) [Thu Apr 30 08:29:14 2015] [notice] child pid 35162 exit signal Segmentation fault (11) [Thu Apr 30 08:29:17 2015] [notice] child pid 35
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting http://serverfault.com/questions/66580/apache-seg-fault-11 ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is http://academe.co.uk/2012/12/apache-segmentation-fault-11-related-to-memory/ a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Apache Seg fault (11) up vote 7 down vote favorite I have this in my apace error.log: [Fri Sep 18 08:10:54 2009] [notice] child segmentation fault pid 9178 exit signal Segmentation fault (11) [Fri Sep 18 08:11:41 2009] [notice] child pid 9187 exit signal Segmentation fault (11) [Fri Sep 18 08:12:12 2009] [notice] child pid 9204 exit signal Segmentation fault (11) [Fri Sep 18 08:12:13 2009] [notice] child pid 9202 exit signal Segmentation fault (11) [Fri Sep 18 08:14:45 2009] [notice] child pid 9251 exit signal Segmentation fault (11) It started the same day I made an addition to the vhost.conf file. So I reverted back to the original segmentation fault 11 file did a apache2ctl restart. Unfortunately it's still occurring. Apache seems to be serving pages OK. Any ideas? Cheers, Nathan. apache-2.2 share|improve this question asked Sep 18 '09 at 8:11 Nathan Friend 339511 add a comment| 6 Answers 6 active oldest votes up vote 5 down vote Nathan, try stopping Apache, and starting it up in the forground (debug, non-threaded), that may leak more clues regarding what is making it segfault. Having said that, it should not segfault regardless, so it's a bug, nevertheless, it may be something you can fix if you know what's causing it. apache2 -X Also (unlikely to reveal the whole reason for this problem), any warnings/errors from... apache2ctl -t ...? Finally, are all the modules you've loaded into Apache "Certified", maybe you can comment about half of them out and see if the problem disappears or not, and carry on with a divide-and-conquer binary search from there. You might also look for any core dumps produced from the segfault, perhaps in /tmp? If you do find some, try running it through gdb... gdb apache2 -c /tmp/core.
have on both a dedicated server and a VPS. It is not something I've seen before and cannot find any descriptions of others seeing it. I'm logging it here in case a solution comes walking past, so I have my fingers crossed. We are running: CentOS 6.4 Apache/2.2.15 PHP 5.3.19 The problem is related to the user of memory. The maximum memory that a PHP process can use is set to 128Mbyte: memory_limit = 128M When a PHP process attempts to use more memory than this, it halts with an error. This is the kind of thing that can happen all too easily in an application such as SugarCRM: [Mon Dec 17 12:22:30 2012] [error] [client 1.2.3.4] PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 523800 bytes) in /var/www/vhosts/example.com/httpdocs/data/SugarBean.php on line 76, referer: http://example.com/index.php?module=Administration&view=module&action=UpgradeWizard_commit So, I tried raising the memory limit to 256M: memory_limit = 256M No more errors were logged. In fact nothing was logged, and I was still getting a white screen. Why no memory errors? The core apache log (/var/log/httpd/error_log) gave some clues here: [Sun Dec 16 01:52:49 2012] [notice] child pid 12415 exit signal Segmentation fault (11) So Apache was creating a segmentation fault - signal 11 - instead of telling me it was running out of memory. Whether this is happening when it reaches 256M, or happens as soon as memory usage exceeds 128M, I don't know. All I do know is that I'm stuffed if I have a process that cannot be optimised to run in 128M of memory. I'm convinced it was working a few weeks ago, so perhaps it is a bug in this version of Apache or PHP? We have Plesk 11 running on the server, and that does its own regular updates, which also patches PHP and Apache. Any clues what could be going on here? Updates: I have no byte cache running on the VPS, but do on the dedicated server. The behaviour is the same in both cases. A segmentation fault is something bad going wrong in memory - the CPU trying to access a block of memory that it cannot or should not be able to access. Assuming the problem is the use of any memory above 128M, and not the act of running out of memory above 128M, then it could be some kind of mis-match between block sizes in CentOS, Apache and PHP. That's just a wild guess though. ----------- I have raised this issue here, and slowly some light is shining on this issue: http://serverfault.com/questions/473797/php-segmentation-fault-when-using-more-than-128m This version of PHP (5.3.21) will segmentat