#50035 [NEW]: Segfault on Exit

From: dhertel at gmail dot com Operating system: linux 2.6.27 PHP version: 5.3.1RC2 PHP Bug Type: Reproducible crash Bug description: Segfault on Exit 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 bug report at http://bugs.php.net/?id=50035&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=50035&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=50035&r=trysnapshot53 Try a snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=50035&r=trysnapshot60 Fixed in SVN: http://bugs.php.net/fix.php?id=50035&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=50035&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=50035&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=50035&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=50035&r=needscript Try newer version: http://bugs.php.net/fix.php?id=50035&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=50035&r=support Expected behavior: http://bugs.php.net/fix.php?id=50035&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=50035&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=50035&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=50035&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=50035&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=50035&r=dst IIS Stability: http://bugs.php.net/fix.php?id=50035&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=50035&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=50035&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=50035&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=50035&r=mysqlcfg