Bug #68205 [Opn->Fbk]: Intermittent crash, exception 0xc0000005 in php5ts.dll
Edit report at https://bugs.php.net/bug.php?id=68205&edit=1
ID: 68205
Updated by: ab@php.net
Reported by: leon at howtomoodle dot com
Summary: Intermittent crash, exception 0xc0000005 in
php5ts.dll
-Status: Open
+Status: Feedback
Type: Bug
Package: Apache2 related
Operating System: Windows Server 2008 R2
PHP Version: 5.5.17
Block user comment: N
Private report: N
New Comment:
Thanks for reporting. Yeah, a crash with opcache enabled might be well just a consequence of the
original issue. So lets concentrate on naling the issue without opcache first.
Maybe it would be possible to at least extract an URL on which the crash was happening (probably
some item with 500 status in the logs)? Or maybe you could try to reproduce on some dev system, then
there were some more room for debugging.
Unfortunately disabling phar won't work as it's compiled statically. Btw are there some
phar files used in the app, by chance? It could be, that phar clashes with some extension which
needs to be loaded before phar, but it's hard to guess without being able to properly debug
Thanks
Previous Comments:
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[2014-10-10 09:25:32] leon at howtomoodle dot com
The PHP files were downloaded from http://windows.php.net/downloads/releases/php-5.5.17-Win32-VC11-x86.zip,
the Apache files from http://www.apachelounge.com/download/VC11/binaries/httpd-2.4.10-win32-VC11.zip.
The backtrace above is with OPcache enabled which may obfuscate the problem(?). Most of the
backtraces contain the message "This thread is not fully resolved and may or may not be a
problem. Further analysis of these threads may be required." and I've been unable to
capture a backtrace that doesn't contain this warning with OPcache turned off. Here's an
example, with OPcache turned off in case it helps:
Entry point libhttpd!ap_regkey_value_set+1bf0
Create time 07/10/2014 11:30:52
Time spent in user mode 0 Days 00:00:01.450
Time spent in kernel mode 0 Days 00:00:00.109
This thread is not fully resolved and may or may not be a problem. Further analysis of these threads
may be required.
Function Source
php5ts!zend_hash_find+f0 [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_hash.c @ 924 + 5]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_hash.c @ 924 + 5
php5ts!zend_set_compiled_filename+3b [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_compile.c @
254 + 29] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_compile.c @ 254 + 29
php5ts!open_file_for_scanning+10b
[c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_language_scanner.l @ 539]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_language_scanner.l @ 539
php5ts!compile_file+6e [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_language_scanner.l @ 574 +
9] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_language_scanner.l @ 574 + 9
php5ts!phar_compile_file+204 [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\phar\phar.c @ 3383 + 19]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\phar\phar.c @ 3383 + 19
0x05b538c8
php5ts!phar_compile_file+1eb [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\phar\phar.c @ 3383]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\phar\phar.c @ 3383
libapr_1!apr_pstrcat+86
msvcr110!__crtFlsGetValue+15
msvcr110!_getptd_noexit+6a
0x058fe168
php5apache2_4!php_handler+1c1
[c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a
kernel32!BaseThreadInitThunk+e
ntdll!__RtlUserThreadStart+70
ntdll!_RtlUserThreadStart+1b
------------------------------------------------------------------------
[2014-10-10 09:09:03] leon at howtomoodle dot com
Description:
------------
I'm seeing an intermittent crash on a production server hosting a Moodle site. Windows event
log details:
Faulting application name: httpd.exe, version: 2.4.10.0, time stamp: 0x53c79afa
Faulting module name: php5ts.dll, version: 5.5.17.0, time stamp: 0x5418c5a5
Exception code: 0xc0000005
Fault offset: 0x0004b985
Faulting process id: 0xf34
Faulting application start time: 0x01cfdd698c1dc0b3
Faulting application path: E:\Server\Apache24\bin\httpd.exe
Faulting module path: E:\Server\PHP\php5ts.dll
Test script:
---------------
N/A - I've been unable to identify the code triggering this.
Actual result:
--------------
In httpd__PID__3732__Date__10_03_2014__Time_09_30_49AM__739__Second_Chance_Exception_C0000005.dmp
the assembly instruction at php5ts!_zend_hash_quick_add_or_update+34 in E:\Server\PHP\php5ts.dll
from The PHP Group has caused an access violation exception (0xC0000005) when trying to read from
memory location 0x00000000 on thread 65
Thread 65 - System ID 1160
Entry point libhttpd!ap_regkey_value_set+1bf0
Create time 03/10/2014 09:14:51
Time spent in user mode 0 Days 00:00:02.215
Time spent in kernel mode 0 Days 00:00:00.577
Function Source
php5ts!_zend_hash_quick_add_or_update+34 [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_hash.c @
295 + a] c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend_hash.c @ 295 + a
php_opcache!persistent_compile_file+5ad
[c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\opcache\zendaccelerator.c @ 1674 + 28]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\ext\opcache\zendaccelerator.c @ 1674 + 28
php5ts!zend_execute_scripts+af [c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend.c @ 1322 + c]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\zend\zend.c @ 1322 + c
php5apache2_4!php_handler+2e7f
[c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 669 + e]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 669 + e
php5apache2_4!php_handler+1c1
[c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a]
c:\php-sdk\php55\vc11\x86\php-5.5.17-ts\sapi\apache2handler\sapi_apache2.c @ 611 + 3a
kernel32!BaseThreadInitThunk+e
ntdll!__RtlUserThreadStart+70
ntdll!_RtlUserThreadStart+1b
------------------------------------------------------------------------
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