Bug #80175 [Csd]: PHP8 RC1 - JIT Buffer not working

Edit report at https://bugs.php.net/bug.php?id=80175&edit=1 ID: 80175 Updated by: cmb@php.net Reported by: celestinoxp at hotmail dot com Summary: PHP8 RC1 - JIT Buffer not working Status: Closed Type: Bug Package: JIT Operating System: Windows 10 PHP Version: 8.0.0rc2 Assigned To: cmb Block user comment: N Private report: N New Comment: Ah, good catch, @nikic! Indeed, I tested with zend_extension=php_opcache.dll, but with zend_extension=opcache RC2 crashes for me as well. @celestinoxp, it might be best to test with the next nightly snapshot. Previous Comments: ------------------------------------------------------------------------ [2020-10-21 09:32:38] nikic@php.net There is a chance that the remaining issue is related to bug #80243, which is fixed now as well. It doesn't actually have to do with JIT, but seems to manifest as a crash there. (This only affects the case where opcache is loaded using zend_extension=opcache. If it was loaded using zend_extension=php_opcache.dll, it should not be related.) ------------------------------------------------------------------------ [2020-10-21 09:12:34] cmb@php.net Well, we need a backtrace to proceed with this, but I just noticed that the instruction to generate a backtrace on Windows[1] are terribly outdated. I have rewritten that section, and with this technique you should be able to get a backtrace even when Apache crashes right after start. That backtrace might not be sufficient for JIT issues, but please give it try. Anyhow, I checked once again with RC1 and RC2, and while the former crashes for me, the latter does not, so I'm closing this ticket, since the respective fix obviously addressed a bug. Please open a new ticket for your issue. Thanks. :) [1] <https://bugs.php.net/bugs-generating-backtrace-win32.php> ------------------------------------------------------------------------ [2020-10-20 12:08:20] celestinoxp at hotmail dot com Hi, jit_buffer_size still not working. I changed php.ini configuration to this: opcache.enable=1 opcache.enable_cli=1 opcache.jit_buffer_size = 32M opcache.jit = 1205 all other lines are commented with ; so values are default. only when add ; in opcache.jit_buffer_size = 32M, php starts... I'm frustrated because I don't know where the error is ... and the php log is blank ... the apache log just says the following: [Wed Oct 21 13: 06: 57.709383 2020] [core: warn] [pid 624: tid 636] AH00098: pid file C: /xampp/apache/logs/httpd.pid overwritten - Unclean shutdown of previous Apache run? ------------------------------------------------------------------------ [2020-10-20 10:46:32] cmb@php.net celestinoxp, could you please try with a minimal php.ini first. Particularly, omit the following (i.e. leave those settings at their default): opcache.protect_memory = 0 opcache.optimization_level = -1 Would that solve the crash during startup? ------------------------------------------------------------------------ [2020-10-20 09:05:42] celestinoxp at hotmail dot com PHP8 RC2 - JIT Buffer still not working. Anyone can confirm? ------------------------------------------------------------------------ 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=80175 -- Edit this bug report at https://bugs.php.net/bug.php?id=80175&edit=1