#50035 [Opn->Fbk]: Segfault on Exit

ID: 50035 Updated by: pajoye@php.net Reported By: dhertel at gmail dot com -Status: Open +Status: Feedback Bug Type: Reproducible crash Operating System: linux 2.6.27 PHP Version: 5.3.1RC2 New Comment: 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. Previous Comments: ------------------------------------------------------------------------ [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