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Bug #64906 occassional crashes in accel_startup
Submitted: 2013-05-23 06:11 UTC Modified: 2018-10-07 09:37 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:0 (0.0%)
Same OS:1 (100.0%)
From: mattficken@php.net Assigned: cmb (profile)
Status: No Feedback Package: opcache
PHP Version: 5.5Git-2013-05-23 (snap) OS: Windows
Private report: No CVE-ID: None
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 [2013-05-23 06:11 UTC] mattficken@php.net 
Description:
------------
Running multiple PHPT tests on CLI I occassionally get these crashes (see below).

I do this using PFTT, which for this is equivalent to run-test.php except that it runs multiple php processes at a time, instead of just one.


This is an updated copy of this issue: https://github.com/zendtech/ZendOptimizerPlus/issues/59

Expected result:
----------------
PHPT tests pass

Actual result:
--------------
009df904 6f5fc2ef php_opcache!accel_startup+0x119 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\ext\opcache\zendaccelerator.c @ 2565] (issue 59?)
009df910 6f73ab0a php5!zend_extension_startup+0xf [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_extensions.c @ 154]
009df928 6f4ab016 php5!zend_llist_apply_with_del+0x28f3aa [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_llist.c @ 178]
009dfc0c 000f14be php5!php_module_startup+0x646 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\main\main.c @ 2207]
009dfc1c 000f2cb8 php!php_cli_startup+0xe [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 417]
009dfcb4 000f9a0e php!main+0x418 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 1357]
009dfcf4 767d3677 php!__tmainCRTStartup+0xfd [f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c @ 536]
009dfd00 77a69d72 kernel32!BaseThreadInitThunk+0x12
009dfd40 77a69d45 ntdll!RtlInitializeExceptionChain+0x63
009dfd58 00000000 ntdll!RtlInitializeExceptionChain+0x36

00adf7d4 6f5fc2ef php_opcache!accel_startup+0x5705 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\ext\opcache\zendaccelerator.c @ 2525]
00adf7e0 6f73ab0a php5!zend_extension_startup+0xf [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_extensions.c @ 154]
00adf7f8 6f4ab016 php5!zend_llist_apply_with_del+0x28f3aa [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_llist.c @ 178]
00adfadc 000f14be php5!php_module_startup+0x646 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\main\main.c @ 2207]
00adfaec 000f2cb8 php!php_cli_startup+0xe [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 417]
00adfb84 000f9a0e php!main+0x418 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 1357]
00adfbc4 767d3677 php!__tmainCRTStartup+0xfd [f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c @ 536]
00adfbd0 77a69d72 kernel32!BaseThreadInitThunk+0x12
00adfc10 77a69d45 ntdll!RtlInitializeExceptionChain+0x63
00adfc28 00000000 ntdll!RtlInitializeExceptionChain+0x36

00abfb28 744a9a55 php_opcache!accel_new_interned_string+0x130 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\ext\opcache\zendaccelerator.c @ 325]
00abfb38 744b0cfe php_opcache!accel_use_shm_interned_strings+0x25 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\ext\opcache\zendaccelerator.c @ 394]
00abfb54 6f5fc2ef php_opcache!accel_startup+0x572e [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\ext\opcache\zendaccelerator.c @ 2535]
00abfb60 6f73ab0a php5!zend_extension_startup+0xf [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_extensions.c @ 154]
00abfb78 6f4ab016 php5!zend_llist_apply_with_del+0x28f3aa [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\zend\zend_llist.c @ 178]
00abfe5c 000f14be php5!php_module_startup+0x646 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\main\main.c @ 2207]
00abfe6c 000f2cb8 php!php_cli_startup+0xe [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 417]
00abff04 000f9a0e php!main+0x418 [c:\php-sdk\snap_5_5\vc11\x86\nts-windows-vc11-x86\sapi\cli\php_cli.c @ 1357]
00abff44 767d3677 php!__tmainCRTStartup+0xfd [f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c @ 536]
WARNING: Stack unwind information not available. Following frames may be wrong.
00abff50 77a69d72 kernel32!BaseThreadInitThunk+0x12
00abff90 77a69d45 ntdll!RtlInitializeExceptionChain+0x63
00abffa8 00000000 ntdll!RtlInitializeExceptionChain+0x36

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 [2014-06-04 02:47 UTC] pvasilevich at parallels dot com 
Similar problem in PHP 5.5.13.
no exact steps to reproduce, just occasional crash dump gnerated.

here is output from windbg:

This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(c8c.b68): Access violation - code c0000005 (first/second chance not available)
eax=00000000 ebx=001cef20 ecx=73673ce0 edx=00000064 esi=001cee90 edi=00000000
eip=777f1318 esp=001ced68 ebp=001ceee8 iopl=0         nv up ei pl nz na po nc
cs=0023  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00200202
ntdll!ZwWaitForMultipleObjects+0xc:
777f1318 c21400          ret     14h
0:000> !analyze -v
*******************************************************************************
*                                                                             *
*                        Exception Analysis                                   *
*                                                                             *
*******************************************************************************


FAULTING_IP: 
php_opcache!accel_startup+1d6 [c:\php-sdk\php55\vc11\x86\php-5.5.13\ext\opcache\zendaccelerator.c @ 2586]
74005016 8b4068          mov     eax,dword ptr [eax+68h]

EXCEPTION_RECORD:  ffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 74005016 (php_opcache!accel_startup+0x000001d6)
   ExceptionCode: c0000005 (Access violation)
  ExceptionFlags: 00000000
NumberParameters: 2
   Parameter[0]: 00000000
   Parameter[1]: 0161a188
Attempt to read from address 0161a188

DEFAULT_BUCKET_ID:  INVALID_POINTER_READ

PROCESS_NAME:  php-cgi.exe

ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s.

EXCEPTION_PARAMETER1:  00000000

EXCEPTION_PARAMETER2:  0161a188

READ_ADDRESS:  0161a188 

FOLLOWUP_IP: 
php_opcache!accel_startup+1d6 [c:\php-sdk\php55\vc11\x86\php-5.5.13\ext\opcache\zendaccelerator.c @ 2586]
74005016 8b4068          mov     eax,dword ptr [eax+68h]

MOD_LIST: <ANALYSIS/>

NTGLOBALFLAG:  0

APPLICATION_VERIFIER_FLAGS:  0

FAULTING_THREAD:  00000b68

PRIMARY_PROBLEM_CLASS:  INVALID_POINTER_READ

BUGCHECK_STR:  APPLICATION_FAULT_INVALID_POINTER_READ

LAST_CONTROL_TRANSFER:  from 72f2ab5f to 74005016

STACK_TEXT:  
001cf4cc 72f2ab5f 0047a120 0047a118 72f4435a php_opcache!accel_startup+0x1d6 [c:\php-sdk\php55\vc11\x86\php-5.5.13\ext\opcache\zendaccelerator.c @ 2586]
001cf4d8 72f4435a 0047a120 001cf590 0108b0a0 php5!zend_extension_startup+0xf [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\zend\zend_extensions.c @ 154]
001cf4f0 72f2a83f 73673940 72f2ab50 72f5ccd5 php5!zend_llist_apply_with_del+0x1a [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\zend\zend_llist.c @ 178]
001cf4fc 72f5ccd5 00000000 00000000 73d48694 php5!zend_startup_extensions+0xf [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\zend\zend_extensions.c @ 175]
001cf7cc 01082061 0108b000 0108b0a0 00000001 php5!php_module_startup+0x6f5 [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\main\main.c @ 2232]
001cf7dc 010838cc 0108b000 00000000 00000001 php_cgi!php_cgi_startup+0x11 [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\sapi\cgi\cgi_main.c @ 936]
001cf970 01087823 00000002 0043d450 0043dea8 php_cgi!main+0x4cc [c:\jenkins\pfw-plesk-engine\windows\build\components\plesk-engine\work\php-sdk\phpdev\vc11\x86\php-5.5.13\sapi\cgi\cgi_main.c @ 1910]
001cf9b0 77338543 7f09d000 001cfa00 7780ac69 php_cgi!__tmainCRTStartup+0xfd [f:\dd\vctools\crt_bld\self_x86\crt\src\crtexe.c @ 536]
001cf9bc 7780ac69 7f09d000 9e3c5a0e 00000000 kernel32!BaseThreadInitThunk+0xe
001cfa00 7780ac3c 0108788b 7f09d000 ffffffff ntdll!__RtlUserThreadStart+0x72
001cfa18 00000000 0108788b 7f09d000 00000000 ntdll!_RtlUserThreadStart+0x1b


STACK_COMMAND:  ~0s; .ecxr ; kb

SYMBOL_STACK_INDEX:  0

SYMBOL_NAME:  php_opcache!accel_startup+1d6

FOLLOWUP_NAME:  MachineOwner

MODULE_NAME: php_opcache

IMAGE_NAME:  php_opcache.dll

DEBUG_FLR_IMAGE_TIMESTAMP:  538dd757

FAILURE_BUCKET_ID:  INVALID_POINTER_READ_c0000005_php_opcache.dll!accel_startup

BUCKET_ID:  APPLICATION_FAULT_INVALID_POINTER_READ_php_opcache!accel_startup+1d6

Followup: MachineOwner
---------
 [2018-09-21 11:26 UTC] cmb@php.net
-Status: Open +Status: Feedback -Assigned To: +Assigned To: cmb
 [2018-09-21 11:26 UTC] cmb@php.net 
Does this still happen with actively supported PHP versions[1]?

[1] <http://php.net/supported-versions.php>
 [2018-10-07 09:37 UTC] cmb@php.net
-Status: Feedback +Status: No Feedback
 [2018-10-07 09:37 UTC] cmb@php.net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Open". Thank you.
 
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