From: jp at 2fast dot nl Operating system: Linux PHP version: 4.3.2 PHP Bug Type: Apache2 related Bug description: child pid $pid exit signal Segmentation fault (11)
On apache 2.0.46 with PHP 4.3.2 i get the following errors in my error_log: [Wed Jun 04 09:09:24 2003] [notice] child pid 4713 exit signal Segmentation fault (11) [Wed Jun 04 09:09:39 2003] [notice] child pid 4800 exit signal Segmentation fault (11) [Wed Jun 04 09:09:45 2003] [notice] child pid 4856 exit signal Segmentation fault (11) [Wed Jun 04 09:09:58 2003] [notice] child pid 4895 exit signal Segmentation fault (11) [Wed Jun 04 09:10:00 2003] [notice] child pid 4937 exit signal Segmentation fault (11) steps i've taken to eliminate hardware failures and other factors: 1. build a new kernel on that machine, previous kernel had a memory mngt. patch: segmentation faults kept coming. 2. build httpd with an other gcc compiler (2.95 instead of 3.3): segmentation faults didn't disappear 3. Compiled it on a whole different machine (AMD Atlhon instead of Intel P4) with the same PHP scripts: It's raining segmentation faults 4. I also compiled php4-STABLE-200306032130 but it makes no difference. I use debian and on both machines runs Linux 2.4.20 without any patches. My PHP version is 4.3.2 and is build with apxs2. The MPM on apache is worker. It has also come to my attention that if I use the following MPM settings (ServerLimit 20, TreadsPerChild 35, MaxClients 700) the webserver has a maximum output of 4 mbit/s while with apache 1.3.27 9 mbit/s could been reached. And with the settings (ServerLimit 50, TreadsPerChild 15, MaxClients 750) my webserver died within a few minutes by a segmentation fault on the parent proccess: [Mon Jun 02 15:59:31 2003] [notice] child pid 11105 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11122 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11121 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11120 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11119 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11118 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11117 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11116 exit signal Segmentation fault (11) [Mon Jun 02 15:59:32 2003] [notice] child pid 11115 exit signal Segmentation fault (11) [Mon Jun 02 15:59:33 2003] [notice] seg fault or similar nasty error detected in the parent process I don't get apache coredumps. When i comment out the loading of the PHP module and the webserver only servers static images i don't get any segmentation faults. -- Edit bug report at http://bugs.php.net/?id=24012&edit=1 -- Try a CVS snapshot: http://bugs.php.net/fix.php?id=24012&r=trysnapshot Fixed in CVS: http://bugs.php.net/fix.php?id=24012&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=24012&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=24012&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=24012&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=24012&r=support Expected behavior: http://bugs.php.net/fix.php?id=24012&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=24012&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=24012&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=24012&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=24012&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=24012&r=dst IIS Stability: http://bugs.php.net/fix.php?id=24012&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=24012&r=gnused
