Bug #80886 [Opn->Asn]: php7.dll crash

Edit report at https://bugs.php.net/bug.php?id=80886&edit=1 ID: 80886 Updated by: cmb@php.net Reported by: alex at ndros dot com Summary: php7.dll crash -Status: Open +Status: Assigned Type: Bug Package: *General Issues Operating System: Windows 2019 PHP Version: 7.4.16 Assigned To: cmb Block user comment: N Private report: N New Comment: Thanks for the stack backtrace. Indeed, that looks like a WinCache issue. I'll try to have a closer look. Previous Comments: ------------------------------------------------------------------------ [2021-03-19 12:52:23] alex at ndros dot com opening ------------------------------------------------------------------------ [2021-03-19 12:52:01] alex at ndros dot com Hi, since we're getting this several times per day, for now we have disabled WinCache. ------------------------------------------------------------------------ [2021-03-19 12:03:34] alex at ndros dot com So this looks related to Wincache. Please note that we're using 4 worker processes on the server (two for each application pool). ------------------------------------------------------------------------ [2021-03-19 12:01:45] alex at ndros dot com Hi, Here's the dump from a crash we had today: Report for php-cgi.exe_210319_075908.dmp Type of Analysis Performed Crash Analysis Machine Name Operating System Windows Server - 17763 Number Of Processors Process ID 2536 Process Image C:\Program Files\PHP\v7.4\php-cgi.exe Command Line "C:\Program Files\PHP\v7.4\php-cgi.exe" System Up-Time 10 day(s) 11:48:07 Process Up-Time 02:18:01 Processor Type X64 Process Bitness 64-Bit Faulting Thread Entry point php_cgi!mainCRTStartup Create time 19/3/2021 5:41:07 πμ Time spent in user mode 0 Days 0:3:36.953 Time spent in kernel mode 0 Days 0:1:29.62 Arg 1 Arg 2 Arg 3 Arg 4 Source php_wincache!get_module+a483 00002153ab48b78 000000000000000 000000000038b78 000000000000063 php_wincache!get_module+954d 000000000000228 000000000000000 00002153a226968 000000000000063 php_wincache!get_module+3c13 000000000000000 00000ca577fb9e1 000000000000000 00000ca577fba98 php_wincache!get_module+3095 00002153ab180b0 00002153d8c77f8 00002153d8c7701 00000ca577fba90 php_wincache+1278 000000000001505 00000ca577fbb00 000000000000000 000000000000000 php_opcache!persistent_stream_open_function+86 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\ext\opcache\zendaccelerator.c @ 2252 + 10] 000000000000000 00000ca577fbb49 000021500000056 000000000000000 c:\php-snap-build\php74\vc15\x64\php-7.4.16\ext\opcache\zendaccelerator.c @ 2252 + 10 php7!zend_include_or_eval+2e9 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_execute.c @ 4262 + 21] 000021539467000 000000000000000 000021539413b20 000000000000001 c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_execute.c @ 4262 + 21 php7!ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER+40 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 37775] 000021539413b20 000000000000000 000000000130000 000021539467000 c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 37775 php7!execute_ex+2f [c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 53655 + f] 000021539413020 000000000000000 000000000130000 000000000000008 c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 53655 + f php7!zend_execute+152 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 57958] 000000000000000 00000ca577fcd10 000000000000000 000000000000008 c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend_vm_execute.h @ 57958 php7!zend_execute_scripts+a1 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend.c @ 1680] 000021500000008 000000000000000 000000000000003 000000000000000 c:\php-snap-build\php74\vc15\x64\php-7.4.16\zend\zend.c @ 1680 php7!php_execute_script+259 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\main\main.c @ 2623] 000000000000001 000000000000001 000000000000000 000000000000000 c:\php-snap-build\php74\vc15\x64\php-7.4.16\main\main.c @ 2623 php_cgi!main+15d1 [c:\php-snap-build\php74\vc15\x64\php-7.4.16\sapi\cgi\cgi_main.c @ 2599] 000000000000000 000000000000000 0007ff9437fb570 000000000000000 c:\php-snap-build\php74\vc15\x64\php-7.4.16\sapi\cgi\cgi_main.c @ 2599 php_cgi!__scrt_common_main_seh+10c [d:\agent\_work\2\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 288 + 22] 000000000000000 000000000000000 000000000000000 000000000000000 d:\agent\_work\2\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 288 + 22 kernel32!BaseThreadInitThunk+14 000000000000000 000000000000000 000000000000000 000000000000000 ntdll!RtlUserThreadStart+21 000000000000000 000000000000000 000000000000000 000000000000000 Exception Information PHP_WINCACHE!GET_MODULE+A483WARNING - DebugDiag was not able to locate debug symbols for \php_wincache.dll, so the information below may be incomplete. In php-cgi.exe_210319_075908.dmp the assembly instruction at php_wincache!get_module+a483 in C:\Program Files\PHP\v7.4\ext\php_wincache.dll from Microsoft Corp. has caused an access violation exception (0xC0000005) when trying to read from memory location 0x00000000 on thread 0 Module Information Image Name: C:\Program Files\PHP\v7.4\ext\php_wincache.dll Symbol Type: Export Base address: 0x00000003`00905a4d Time Stamp: Thu Jan 23 04:52:21 2020 Checksum: 0x00000000`00000000 Comments: COM DLL: False Company Name: Microsoft Corp. ISAPIExtension: False File Description: Windows Cache Extension for PHP ISAPIFilter: False File Version: 2.0.0.8 Managed DLL: False Internal Name: VB DLL: False Legal Copyright: Copyright Β© 2016 Microsoft Corp. All Rights Reserved. Loaded Image Name: php_wincache.dll Legal Trademarks: Mapped Image Name: Original filename: php_wincache.dll Module name: php_wincache Private Build: Single Threaded: False Product Name: Windows Cache Extension2.0 for PHP 7.4 Module Size: 152 KBytes Product Version: 2.0 Symbol File Name: php_wincache.dll Special Build: & ------------------------------------------------------------------------ [2021-03-18 22:47:29] cmb@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=80886 -- Edit this bug report at https://bugs.php.net/bug.php?id=80886&edit=1