Apache Error Segmentation Fault 11
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Apache Exit Signal Segmentation Fault 11
Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, apache segmentation fault (core dumped) just like you, helping each other. Join them; it only takes a minute: Sign up “[notice] child pid XXXX exit signal Segmentation fault (11)” in apache error.log [closed] up vote 65 down vote favorite 14 I
Swift Compiler Error Segmentation Fault 11
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 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 c error segmentation fault 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 greatfully greatful. UPDATE: PHP Version 5.3.4, OSX local development Server version: Apache/2.2.17 (Unix) CakePhp: 1.3.10 php apache cakephp error-logging share|improve this question edited Feb 3 '13 at 17:20 Kuf 8,65522960 asked Oct 12 '11 at 19:38 mgPePe 2,13463261 closed as off topic by Jerry Coffin, codingbadger, Joe, bmargulies, Graviton Oct 15 '11 at 2:54 Questions on Stack Overflow are expected to relate to programming within the scope defined by the comm
2.4 segmentation fault errors If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click
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that you want to visit from the selection below. Results 1 to 7 of 7 Thread: Apache 2.4 segmentation ah00052: child pid exit signal segmentation fault fault errors Thread Tools Show Printable Version Email this Page… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 05-08-2012,02:10 AM #1 Suurbier View Profile View Forum Posts Verified User Join http://stackoverflow.com/questions/7745578/notice-child-pid-xxxx-exit-signal-segmentation-fault-11-in-apache-error-lo Date Apr 2007 Posts 243 Apache 2.4 segmentation fault errors I am getting a lot of segmentation errors on Apache 2.4 so i switched back to 2.2 and I am not getting segmentation faults in the Apache error logs anymore. Does anyone know what the problem might be? Sometimes sites randomly go offline with the error 324 empty response (when I visit in Chrome). Code: http://forum.directadmin.com/showthread.php?t=43572 [Tue May 01 21:56:09.914061 2012] [core:notice] [pid 29523] AH00052: child pid 21314 exit signal Segmentation fault (11) [Tue May 01 21:56:16.907475 2012] [core:notice] [pid 29523] AH00052: child pid 21303 exit signal Segmentation fault (11) [Tue May 01 21:56:54.069676 2012] [core:notice] [pid 29523] AH00052: child pid 21340 exit signal Segmentation fault (11) [Tue May 01 21:57:14.260285 2012] [core:notice] [pid 29523] AH00052: child pid 21347 exit signal Segmentation fault (11) [Tue May 01 21:57:24.272561 2012] [core:notice] [pid 29523] AH00052: child pid 21356 exit signal Segmentation fault (11) [Tue May 01 21:57:25.282934 2012] [core:notice] [pid 29523] AH00052: child pid 21348 exit signal Segmentation fault (11) [Tue May 01 21:57:27.376112 2012] [core:notice] [pid 29523] AH00052: child pid 21382 exit signal Segmentation fault (11) [Tue May 01 21:57:33.422070 2012] [core:notice] [pid 29523] AH00052: child pid 21380 exit signal Segmentation fault (11) [Tue May 01 21:57:34.474543 2012] [core:notice] [pid 29523] AH00052: child pid 21376 exit signal Segmentation fault (11) [Tue May 01 21:57:37.482198 2012] [core:notice] [pid 29523] AH00052: child pid 21229 exit signal Segmentation fault (11) [Tue May 01 21:57:39.482097 2012] [core:notice] [pid 29523] AH00052: child pid 21381 exit signal Segmentation fault (11) [Tue May 01 21:57:43.486233 2012] [co
(11) If you have, read on. At my day job I deal with both Apache and PHP a lot. If you have ever tried to figure out why your PHP code seems to cause http://www.omh.cc/blog/2008/mar/6/fixing-apache-segmentation-faults-caused-php/ Apache segmentation faults, you probably experienced the same as I did. Lots of pain, frustration and headaches. However all is not lost. There is a way to figure out what PHP code is making Apache act crazy. I'll try to explain how to debug Apache using gdb to locate that nasty bug that is causing you to lose your precious beautysleep. Before webegin Now, Apache does not dump segmentation fault core by default. We need to do some work before that happens. If you don't like to get your hands dirty compiling stuff manually, you should leave now, this is not foryou. Still here? Good! Before we start, make sure youhave: Root access to your webserver Apache source code and everything needed to (re-)compileApache PHP source code (or just download the .gbdinit file) Make Apache dumpcore The first step segmentation fault 11 is to make Apache not change user when it starts up and forks, so we will make it run as root the whole time. To accomplish this we need to compile Apache with -DBIG_SECURITY_HOLE. For obvious reasons, this is not recommended forproduction. 1 2 3make clean export EXTRA_CFLAGS="-DBIG_SECURITY_HOLE" ./configure && make && make install Now specify the "root" as the "User" in httpd.conf. While we're editing httpd.conf we'll add a setting to specify where Apache should put our coredump. 1 2 3User nobody [...] CoreDumpDirectory /tmp/apache Make sure /tmp/apacheexists 1mkdir -p /tmp/apache On most systems the core file size is set to zero by default. We'll go ahead and change it tounlimited. 1ulimit -c 0 You can check your current core dump file size limit byrunning 1ulimit -a RestartApache 1apachectl restart Next time Apache crashes with a Segmentation fault it should make us a core dump. If you did everything correctly you should see something like this in the apacheerror_log. 1 2[notice] child pid 16430 exit signal Segmentation fault (11), possible coredump in /tmp/apache Note: For reasons unclear to me my dump file ended up on the root (/) and not in the directory we specified with CoreDumpDirectory. If anyone knows why please d