Bug #63287 [NEW]: Segfault in PHP 5.4.7 on OS X 10.7

From: evert at rooftopsolutions dot nl Operating system: OS X 10.7 PHP version: 5.4.7 Package: Reproducible crash Bug Type: Bug Bug description:Segfault in PHP 5.4.7 on OS X 10.7 Description: ------------ Hi! I'm getting segfaults at random places. The stacktrace I gathered so far is this: Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: KERN_INVALID_ADDRESS at address: 0x00000f780000002d 0x0000000100345623 in zval_mark_grey () #0 0x0000000100345623 in zval_mark_grey () #1 0x0000000100345644 in zval_mark_grey () #2 0x0000000100344986 in gc_collect_cycles () #3 0x00000001003445f5 in gc_zval_possible_root () #4 0x0000000100336e9d in zend_hash_destroy () #5 0x000000010032a0bd in _zval_dtor_func () #6 0x00000001000529ae in php_pcre_match_impl () #7 0x0000000100055a30 in php_do_pcre_match () #8 0x000000010031f341 in dtrace_execute_internal () #9 0x0000000100e98037 in xdebug_execute_internal () #10 0x000000010038fb0f in zend_do_fcall_common_helper_SPEC () #11 0x000000010034cf7c in execute () #12 0x000000010031f286 in dtrace_execute () #13 0x0000000100e97dba in xdebug_execute () #14 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #15 0x000000010034cf7c in execute () #16 0x000000010031f286 in dtrace_execute () #17 0x0000000100e97dba in xdebug_execute () #18 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #19 0x000000010034cf7c in execute () #20 0x000000010031f286 in dtrace_execute () #21 0x0000000100e97dba in xdebug_execute () #22 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #23 0x000000010034cf7c in execute () #24 0x000000010031f286 in dtrace_execute () #25 0x0000000100e97dba in xdebug_execute () #26 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #27 0x000000010034cf7c in execute () #28 0x000000010031f286 in dtrace_execute () #29 0x0000000100e97dba in xdebug_execute () #30 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #31 0x000000010034cf7c in execute () #32 0x000000010031f286 in dtrace_execute () #33 0x0000000100e97dba in xdebug_execute () #34 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #35 0x000000010034cf7c in execute () #36 0x000000010031f286 in dtrace_execute () #37 0x0000000100e97dba in xdebug_execute () #38 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #39 0x000000010034cf7c in execute () #40 0x000000010031f286 in dtrace_execute () #41 0x0000000100e97dba in xdebug_execute () #42 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #43 0x000000010034cf7c in execute () #44 0x000000010031f286 in dtrace_execute () #45 0x0000000100e97dba in xdebug_execute () #46 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #47 0x000000010034cf7c in execute () #48 0x000000010031f286 in dtrace_execute () #49 0x0000000100e97dba in xdebug_execute () #50 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #51 0x000000010034cf7c in execute () #52 0x000000010031f286 in dtrace_execute () #53 0x0000000100e97dba in xdebug_execute () #54 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #55 0x000000010034cf7c in execute () #56 0x000000010031f286 in dtrace_execute () #57 0x0000000100e97dba in xdebug_execute () #58 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #59 0x000000010034cf7c in execute () #60 0x000000010031f286 in dtrace_execute () #61 0x0000000100e97dba in xdebug_execute () #62 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #63 0x000000010034cf7c in execute () #64 0x000000010031f286 in dtrace_execute () #65 0x0000000100e97dba in xdebug_execute () #66 0x000000010038fc34 in zend_do_fcall_common_helper_SPEC () #67 0x000000010034cf7c in execute () #68 0x000000010031f286 in dtrace_execute () #69 0x0000000100e97dba in xdebug_execute () #70 0x000000010032c570 in zend_execute_scripts () #71 0x00000001002db63b in php_execute_script () #72 0x00000001003addfd in do_cli () #73 0x00000001003ad26f in main () The problem occurs all over the place in different situations. Remove xdebug, problem goes away.. start mysql.. problem comes back.. change a file, problem is somewhere else. So I understand this is pretty vague Test script: --------------- Unfortunately I cannot create a simple testcase, as the location of the error alternates, and doesn't appear in simple scripts. I would be more than happy to give you more details though, Just need to know where and what to do.. Expected result: ---------------- No segfault Actual result: -------------- A segfault -- Edit bug report at https://bugs.php.net/bug.php?id=63287&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=63287&r=trysnapshot54 Try a snapshot (PHP 5.3): https://bugs.php.net/fix.php?id=63287&r=trysnapshot53 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=63287&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=63287&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=63287&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=63287&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=63287&r=needscript Try newer version: https://bugs.php.net/fix.php?id=63287&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=63287&r=support Expected behavior: https://bugs.php.net/fix.php?id=63287&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=63287&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=63287&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=63287&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=63287&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=63287&r=dst IIS Stability: https://bugs.php.net/fix.php?id=63287&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=63287&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=63287&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=63287&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=63287&r=mysqlcfg