ID: 50035 User updated by: dhertel at gmail dot com Reported By: dhertel at gmail dot com Status: Open Bug Type: Reproducible crash Operating System: linux 2.6.27 PHP Version: 5.3.1RC2 New Comment:
that somehow doesn't surprise me, as this segfault doesn't seem to come from the script... if i got the backtrace right, php segfaults after the script finished - correct me if i'm wrong :) Previous Comments: ------------------------------------------------------------------------ [2009-10-29 19:36:18] sjo...@php.net I could not reproduce the crash with either script. ------------------------------------------------------------------------ [2009-10-29 15:07:59] dhertel at gmail dot com I'm sorry i couln't provide a shorter script :-(. I can't reproduce the segfault with a simple script. I now stripped everything unnecessary from the script... doesn't need anything external now... Strange thing is that the segfault doesn't occur every time the script ends but sometimes... and the more iterations mmae_core2 runs (line 59), the more often it seems to occur http://pastebin.org/49264 ------------------------------------------------------------------------ [2009-10-29 14:40:38] paj...@php.net Thank you for this bug report. To properly diagnose the problem, we need a short but complete example script to be able to reproduce this bug ourselves. A proper reproducing script starts with <?php and ends with ?>, is max. 10-20 lines long and does not require any external resources such as databases, etc. If the script requires a database to demonstrate the issue, please make sure it creates all necessary tables, stored procedures etc. Please avoid embedding huge scripts into the report. ------------------------------------------------------------------------ [2009-10-29 14:12:29] dhertel at gmail dot com Description: ------------ I'm writing a CLI program with forking and ipc and stuff. It seems to work fine but in the current test the script eventually produces a segfault - every time... but only if i let it run until it's shutting down itself. if i interrupt it, it shuts down without segfaulting php -i says it's version 5.3.1RC3-dev but i also had this problem with 5.3.0 (which unfortunately i can't downgrade to anymore to make a trace there) when using valgrind to check memory the segfault doesn't happen Reproduce code: --------------- Though I don't believe that it's a problem with my actual code (as there are no execute() lines in the Backtrace), here it is: http://pastebin.org/49244 the PFW_* classes are for handling processes in general, the MMAE_* classes are part of the actual software using PFW_*, where MMAE_Boot stays but Core and Core2 are only for seing if my PFW_* actually works. Expected result: ---------------- no segfault Actual result: -------------- segfault so here's the back trace #0 0xb7441570 in ?? () #1 0x080b88d3 in zm_shutdown_ps_mm (type=1, module_number=7) at /usr/src/debug/php-5.3.1_git200910272307/ext/session/mod_mm.c:256 #2 0x080b6fd1 in zm_shutdown_session (type=1, module_number=7) at /usr/src/debug/php-5.3.1_git200910272307/ext/session/session.c:2192 #3 0x081bde7a in module_destructor (module=0x82cd180) at /usr/src/debug/php-5.3.1_git200910272307/Zend/zend_API.c:2098 #4 0x081c4192 in zend_hash_apply_deleter (ht=0x82bbbc0, p=0x82cd150) at /usr/src/debug/php-5.3.1_git200910272307/Zend/zend_hash.c:611 #5 0x081c4457 in zend_hash_graceful_reverse_destroy (ht=0x82bbbc0) at /usr/src/debug/php-5.3.1_git200910272307/Zend/zend_hash.c:646 #6 0x081b85ac in zend_shutdown () at /usr/src/debug/php-5.3.1_git200910272307/Zend/zend.c:759 #7 0x0815d732 in php_module_shutdown () at /usr/src/debug/php-5.3.1_git200910272307/main/main.c:2103 #8 0x0824569c in main (argc=2, argv=0xbff47784) at /usr/src/debug/php-5.3.1_git200910272307/sapi/cli/php_cli.c:1385 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=50035&edit=1
