Bug #79932 [Opn]: PHP 8.0 beta1 crashes when used as apache module

Edit report at https://bugs.php.net/bug.php?id=79932&edit=1 ID: 79932 User updated by: buschmann at nidsa dot net Reported by: buschmann at nidsa dot net Summary: PHP 8.0 beta1 crashes when used as apache module Status: Open Type: Bug Package: JIT Operating System: Windows Server 2019 64bit PHP Version: 8.0.0beta1 Block user comment: N Private report: N New Comment: When set opcache.jit=1205 the opcache_gui and prewarm and a quick test of the application seem OK now. (Only tested in httpd -X mode for now) It seems I cannot provide more info to come to the root cause. Thanks for investigating. Previous Comments: ------------------------------------------------------------------------ [2020-08-06 10:16:20] cmb@php.net Thanks! This is apparently a tracing JIT issue. Please try with opcache.jit=1205 ------------------------------------------------------------------------ [2020-08-06 10:03:11] buschmann at nidsa dot net Crash dump as requested (when loading opcache_gui.php or prewarm with our application): Report for httpd__PID__4300__Date__08_06_2020__Time_11_43_01AM__275__Second_Chance_Exception_C0000005.dmp Type of Analysis Performed Crash Analysis Machine Name SAM_DEV_HB Operating System Windows Server - 17763 Number Of Processors 2 Process ID 4300 Process Image N:\Apache\Apache24\bin\httpd.exe Command Line httpd -X System Up-Time 18 day(s) 18:08:55 Process Up-Time 00:10:02 Processor Type X64 Process Bitness 64-Bit Faulting Thread Entry point libhttpd!ap_run_generate_log_id+3ab0 Create time 06.08.2020 11:32:59 Time spent in user mode 0 Days 0:0:0.421 Time spent in kernel mode 0 Days 0:0:0.234 Arg 1 Arg 2 Arg 3 Arg 4 Source php_opcache!zend_jit_trace_exit_is_hot+68 [C:\php-snap-build\php80\vs16\x64\php-8.0.0beta1-ts\ext\opcache\jit\zend_jit_trace.c @ 5386 + 4] 000000000000001 000007200000006 00001affd3d00d8 0007ff955d9490b C:\php-snap-build\php80\vs16\x64\php-8.0.0beta1-ts\ext\opcache\jit\zend_jit_trace.c @ 5386 + 4 php_opcache!zend_jit_trace_exit+a76 [C:\php-snap-build\php80\vs16\x64\php-8.0.0beta1-ts\ext\opcache\jit\zend_jit_trace.c @ 5753 + 47] 000100000000006 0000072cebfd4a0 0000000000000c6 00001affd86a500 C:\php-snap-build\php80\vs16\x64\php-8.0.0beta1-ts\ext\opcache\jit\zend_jit_trace.c @ 5753 + 47 0x0000100002000613 0000072cebfd4a0 0000000000000c6 00001affd86a500 0000000`00000003 0x0000100000000006 0000000000000c6 00001affd86a500 000000000000003 00001af`fd88835c 0x00000072cebfd4a0 00001affd86a500 000000000000003 00001affd88835c 0000e50`028ac6b0 0x000000c6 000000000000003 00001affd88835c 0000e50028ac6b0 0000072cebfd5b0 0x000001affd86a500 00001affd88835c 0000e50028ac6b0 0000072cebfd5b0 00001af`fd3d00d8 0x00000003 0000e50028ac6b0 0000072cebfd5b0 00001affd3d00d8 00001affd4a0cf0 0x000001affd88835c 0000072cebfd5b0 00001affd3d00d8 00001affd4a0cf0 00001af`fd8123c0 0x00000e50028ac6b0 00001affd3d00d8 00001affd4a0cf0 00001affd8123c0 00001af`fd3d00d8 0x00000072cebfd5b0 00001affd4a0cf0 00001affd8123c0 00001affd3d00d8 0000000`00000000 0x000001affd3d00d8 00001affd8123c0 00001affd3d00d8 000000000000000 00001af`fd812350 0x000001affd4a0cf0 00001affd3d00d8 000000000000000 00001affd812350 00001af`fab338e0 0x000001affd8123c0 000000000000000 00001affd812350 00001affab338e0 00001af`fd3d00d8 0x000001affd3d00d8 00001affd812350 00001affab338e0 00001affd3d00d8 0000000`00000008 CLR Information Exception Information PHP_OPCACHE!ZEND_JIT_TRACE_EXIT_IS_HOT+68In httpd__PID__4300__Date__08_06_2020__Time_11_43_01AM__275__Second_Chance_Exception_C0000005.dmp the assembly instruction at php_opcache!zend_jit_trace_exit_is_hot+68 in N:\Apache\php8\ext\php_opcache.dll from The PHP Group has caused an access violation exception (0xC0000005) when trying to read from memory location 0x00000006 on thread 97 Module Information Image Name: N:\Apache\php8\ext\php_opcache.dll Symbol Type: PDB Base address: 0x00000003`00905a4d Time Stamp: Tue Aug 4 22:51:55 2020 Checksum: 0x00000000`00000000 Comments: Thanks to Andi Gutmans, Zeev Suraski, Stanislav Malyshev, Dmitry Stogov, Xinchen Hui COM DLL: False Company Name: The PHP Group ISAPIExtension: False File Description: Opcache ISAPIFilter: False File Version: 8.0.0beta1 Managed DLL: False Internal Name: OPCACHE extension VB DLL: False Legal Copyright: Copyright © The PHP Group Loaded Image Name: php_opcache.dll Legal Trademarks: PHP Mapped Image Name: Original filename: php_opcache.dll Module name: php_opcache Private Build: Single Threaded: False Product Name: PHP Module Size: 1,46 MBytes Product Version: 8.0.0beta1 Symbol File Name: n:\apache\php8debug\php_opcache.pdb Special Build: & ------------------------------------------------------------------------ [2020-08-05 17:07:14] 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. ------------------------------------------------------------------------ [2020-08-05 10:45:00] buschmann at nidsa dot net Description: ------------ For testing I recently switched from PHP 8.0 alpha3 to 8.0beta1 in an otherwise unchanged environment under Windows Server 64 bit. When trying to show a page or prewarm any script, the following error is shown in Apache error log (the whole sequence of server start and crash): [Wed Aug 05 11:20:57.000616 2020] [ssl:warn] [pid 2332:tid 588] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache] [Wed Aug 05 11:20:57.000616 2020] [mpm_winnt:notice] [pid 2332:tid 588] AH00455: Apache/2.4.43 (Win64) OpenSSL/1.1.1g PHP/8.0.0beta1 configured -- resuming normal operations [Wed Aug 05 11:20:57.000616 2020] [mpm_winnt:notice] [pid 2332:tid 588] AH00456: Apache Lounge VS16 Server built: Apr 21 2020 16:23:13 [Wed Aug 05 11:20:57.000616 2020] [core:notice] [pid 2332:tid 588] AH00094: Command line: 'N:\\Apache\\Apache24\\bin\\httpd.exe -d N:/Apache/Apache24' [Wed Aug 05 11:20:57.016614 2020] [mpm_winnt:notice] [pid 2332:tid 588] AH00418: Parent: Created child process 1312 [Wed Aug 05 11:20:57.344367 2020] [ssl:warn] [pid 1312:tid 512] AH01873: Init: Session Cache is not configured [hint: SSLSessionCache] [Wed Aug 05 11:20:57.359992 2020] [mpm_winnt:notice] [pid 1312:tid 512] AH00354: Child: Starting 64 worker threads. [Wed Aug 05 11:20:58.453743 2020] [mpm_winnt:notice] [pid 2332:tid 588] AH00428: Parent: child process 1312 exited with status 3221225477 -- Restarting. This sequence is repeated multiple times, always exited with status 3221225477. PHP is unusable, no further testing possible. When switching back to 8.0 alpha3, everything works again as before. Environment: - Windows server 2019 64bit Standard in a VM under HyperV - Apache 2.43 64bit from apachelounge - php 8 beta1 64bit thread safe from php.net QA download - php loaded as a module with php_module Download address: https://windows.php.net/downloads/qa/php-8.0.0beta1-Win32-vs16-x64.zip ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79932&edit=1