Bug #77312 [Com]: accel_replace_string_by_process_permanent: Assertion `0' failed

Edit report at https://bugs.php.net/bug.php?id=77312&edit=1 ID: 77312 Comment by: bugs dot php dot net at mundpropaganda dot net Reported by: sjon at hortensius dot net Summary: accel_replace_string_by_process_permanent: Assertion `0' failed Status: Open Type: Bug Package: opcache Operating System: archlinux PHP Version: 7.3.0 Block user comment: N Private report: N New Comment: This might be related to bug #77289 which I reported earlier. I'm also using Archlinux. Crashes happen with official pkgs and manually compiled binaries. Reading your report I did another run with a debug-enabled build (didn't think about enabling it before) and got these results: Debug log: [18-Dec-2018 16:32:26] WARNING: [pool amm-php73] child 30823 said into stderr: "3: /home/krist/tmp/php-7.3.0/Zend/zend_string.h:260: zend_string_free: Assertion `zend_gc_refcount(&(s)->gc) <= 1' failed." [18-Dec-2018 16:32:27] WARNING: [pool amm-php73] child 30823 exited on signal 6 (SIGABRT - core dumped) after 9.728186 seconds from start GDB backtrace: Reading symbols from /opt/php/php-7.3/sbin/php-fpm...done. [New LWP 30851] [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Core was generated by `php-fpm: pool amm-php73 '. Program terminated with signal SIGABRT, Aborted. #0 0x00007f43e1367d7f in raise () from /usr/lib/libc.so.6 (gdb) bt #0 0x00007f43e1367d7f in raise () from /usr/lib/libc.so.6 #1 0x00007f43e1352672 in abort () from /usr/lib/libc.so.6 #2 0x00007f43e1352548 in __assert_fail_base.cold.0 () from /usr/lib/libc.so.6 #3 0x00007f43e1360396 in __assert_fail () from /usr/lib/libc.so.6 #4 0x000055e6e1fc1f49 in zend_string_free (s=0x7f43d7bdb4b0) at /home/krist/tmp/php-7.3.0/Zend/zend_string.h:260 #5 0x000055e6e1fc355c in zif_spl_autoload (execute_data=0x7f43e0a1fbb0, return_value=0x7ffed7d4a340) at /home/krist/tmp/php-7.3.0/ext/spl/php_spl.c:338 #6 0x000055e6e2280f1b in ZEND_DO_ICALL_SPEC_RETVAL_UNUSED_HANDLER () at /home/krist/tmp/php-7.3.0/Zend/zend_vm_execute.h:645 #7 0x000055e6e22ee472 in execute_ex (ex=0x7f43e0a1fb20) at /home/krist/tmp/php-7.3.0/Zend/zend_vm_execute.h:55414 #8 0x000055e6e2201914 in zend_call_function (fci=0x7ffed7d4a680, fci_cache=0x7ffed7d4a660) at /home/krist/tmp/php-7.3.0/Zend/zend_execute_API.c:756 #9 0x000055e6e1fc3a47 in zif_spl_autoload_call (execute_data=0x7f43e0a1fac0, return_value=0x7ffed7d4a860) at /home/krist/tmp/php-7.3.0/ext/spl/php_spl.c:448 #10 0x000055e6e2201a01 in zend_call_function (fci=0x7ffed7d4a890, fci_cache=0x7ffed7d4a870) at /home/krist/tmp/php-7.3.0/Zend/zend_execute_API.c:770 #11 0x000055e6e22021d3 in zend_lookup_class_ex (name=0x7f43d7bdb4b0, key=0x0, use_autoload=1) at /home/krist/tmp/php-7.3.0/Zend/zend_execute_API.c:926 #12 0x000055e6e22022be in zend_lookup_class (name=0x7f43d7bdb4b0) at /home/krist/tmp/php-7.3.0/Zend/zend_execute_API.c:947 #13 0x000055e6e223b4b4 in zif_class_exists (execute_data=0x7f43e0a1fa60, return_value=0x7f43e0a1fa40) at /home/krist/tmp/php-7.3.0/Zend/zend_builtin_functions.c:1446 #14 0x000055e6e228113a in ZEND_DO_ICALL_SPEC_RETVAL_USED_HANDLER () at /home/krist/tmp/php-7.3.0/Zend/zend_vm_execute.h:690 #15 0x000055e6e22ee47f in execute_ex (ex=0x7f43e0a1f030) at /home/krist/tmp/php-7.3.0/Zend/zend_vm_execute.h:55418 #16 0x000055e6e22f3aa5 in zend_execute (op_array=0x7f43e0a75000, return_value=0x0) at /home/krist/tmp/php-7.3.0/Zend/zend_vm_execute.h:60834 #17 0x000055e6e2219688 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/krist/tmp/php-7.3.0/Zend/zend.c:1568 #18 0x000055e6e217fbb6 in php_execute_script (primary_file=0x7ffed7d4d0c0) at /home/krist/tmp/php-7.3.0/main/main.c:2630 #19 0x000055e6e2306d91 in main (argc=3, argv=0x7ffed7d4d558) at /home/krist/tmp/php-7.3.0/sapi/fpm/fpm/fpm_main.c:1950 I hope this helps! Previous Comments: ------------------------------------------------------------------------ [2018-12-17 15:48:39] sjon at hortensius dot net Description: ------------ since my fpm childs started segfaulting I've installed a debug-build which yielded the given message. Since this is a production machine and this happens infrequently I would like to know how much (and what) context is required to fix this. The full message: ext/opcache/ZendAccelerator.c:737: accel_replace_string_by_process_permanent: Assertion `0' failed. this happens on only a subset of pools in the fpm configuration. It segfaults roughly once every ~ 100 hits and asserts roughly every hit ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77312&edit=1