Bug #77647 [Csd]: preload: Access violation in zend_mm_shutdown

Edit report at https://bugs.php.net/bug.php?id=77647&edit=1 ID: 77647 Updated by: cmb@php.net Reported by: mberchtold at gmail dot com Summary: preload: Access violation in zend_mm_shutdown Status: Closed Type: Bug Package: opcache Operating System: Windows 10 x64 PHP Version: master-Git-2019-02-21 (snap) Assigned To: cmb Block user comment: N Private report: N New Comment: Thanks for checking! However, since preloading support has been removed for Windows[1], this ticket can indeed be closed. [1] <https://github.com/php/php-src/pull/4999> Previous Comments: ------------------------------------------------------------------------ [2020-01-05 13:34:31] mberchtold at gmail dot com I was recently testing it (2 weeks ago) with a master snapshot. Same issue. I recommend to close this as the opcache is clearly not usable on Windows at the moment. ------------------------------------------------------------------------ [2020-01-05 11:58:05] cmb@php.net Please try a recent PHP 7.4 snapshot[1]. Also note that preloading support is very much restricted on Windows currently, and might be dropped altogether[2]. [1] <https://windows.php.net/downloads/snaps/php-7.4/> [2] <https://github.com/php/php-src/pull/4999> ------------------------------------------------------------------------ [2019-04-29 10:00:06] nikic@php.net That's weird, this call is happening as part of an SHM_UNPROTECT region and shouldn't generate an access violation :/ ------------------------------------------------------------------------ [2019-04-16 06:55:14] mberchtold at gmail dot com With opcache.protect_memory=1 and the latest snapshot, I get the following crash now: [Inline Frame] php_opcache.dll!accel_interned_strings_save_state() Line 416 C php_opcache.dll!accel_use_shm_interned_strings() Line 749 C php_opcache.dll!accel_post_startup() Line 2986 C [Inline Frame] php8.dll!zend_post_startup() Line 992 C php8.dll!php_module_startup(_sapi_module_struct * sf, _zend_module_entry * additional_modules, unsigned int num_additional_modules) Line 2337 C php-cgi.exe!php_cgi_startup(_sapi_module_struct * sapi_module) Line 969 C php-cgi.exe!main(int argc, char * * argv) Line 1916 C > [Inline Frame] php-cgi.exe!invoke_main() Line 78 C++ php-cgi.exe!__scrt_common_main_seh() Line 288 C++ kernel32.dll!BaseThreadInitThunk() Unknown ntdll.dll!RtlUserThreadStart() Unknown code: static void accel_interned_strings_save_state(void) { ZCSG(interned_strings).saved_top = ZCSG(interned_strings).top; } debug out: Unhandled exception thrown: write access violation. **accel_shared_globals** was 0x100000000080. ------------------------------------------------------------------------ [2019-04-15 13:38:23] nikic@php.net Support for opcache.protect_memory=1 on Windows has landed in the meantime, so it might be possible to produce a better trace now. (Assuming that ext/phar is not used, which is not compatible with memory protection right now.) ------------------------------------------------------------------------ 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=77647 -- Edit this bug report at https://bugs.php.net/bug.php?id=77647&edit=1