Bug #75621 [Fbk->Csd]: Opcache crashes Apache possible with bad chars

Edit report at https://bugs.php.net/bug.php?id=75621&edit=1 ID: 75621 Updated by: nikic@php.net Reported by: pascal dot nobus at webservice dot be Summary: Opcache crashes Apache possible with bad chars -Status: Feedback +Status: Closed Type: Bug -Package: opcache +Package: Scripting Engine problem Operating System: Slackware 14.1 PHP Version: 7.1.12 -Assigned To: +Assigned To: nikic Block user comment: N Private report: N New Comment: Thanks for checking! Previous Comments: ------------------------------------------------------------------------ [2017-12-18 15:51:36] pascal dot nobus at webservice dot be I'm running 7.1.13RC1 now for almost 20h without a single core-dump. So it looks the problem is solved! If it's up to me you may consider bug#75261 bug#75573 bug#75579 as CLOSED. ------------------------------------------------------------------------ [2017-12-17 21:24:06] nikic@php.net This is most likely bug #75573. Can you check whether 7.1.13RC1 resolves this issue? ------------------------------------------------------------------------ [2017-12-13 12:53:53] pascal at nobus dot Be I have been collecting coredump since a few days, and I see about 2 crashes a day. The all have different files now? P.S. I run nginx as a proxy before this apache, could this have something to do with it? (don't see any problems with nginx) #0 i_zval_ptr_dtor (zval_ptr=0x7fd3f024aa40) at /usr/local/src/php-7.1.12/Zend/zend_variables.h:46 46 if (Z_REFCOUNTED_P(zval_ptr)) { #0 zend_hash_clean (ht=0x7fd48a02ae78) at /usr/local/src/php-7.1.12/Zend/zend_hash.c:1366 1366 if (EXPECTED(Z_TYPE(p->val) != IS_UNDEF)) { #0 zend_hash_clean (ht=0x7fd4880c7690) at /usr/local/src/php-7.1.12/Zend/zend_hash.c:1352 1352 if (EXPECTED(Z_TYPE(p->val) != IS_UNDEF)) { #0 zval_delref_p (pz=<optimized out>, pz=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_types.h:838 838 return --GC_REFCOUNT(Z_COUNTED_P(pz)); #0 execute_ex (ex=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_vm_execute.h:429 429 ((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU); #0 execute_ex (ex=<optimized out>) at /usr/local/src/php-7.1.12/Zend/zend_vm_execute.h:429 429 ((opcode_handler_t)OPLINE->handler)(ZEND_OPCODE_HANDLER_ARGS_PASSTHRU); ------------------------------------------------------------------------ [2017-12-05 10:44:00] post at minhost dot no Strange that you don't see statistic for opcache on a phpinfo page, like "Interned Strings Used memory" and "Interned Strings Free memory", maybe it is because you run PHP as a module. I run PHP as FPM, so I don't know. What I see in PHP 7.1.12 is that Interned Strings memory run full in a very short time, then PHP pages start to go down. What I don't know if Interned Strings Free memory is supposed to run full in a short time or not? It never happened before, it was always plenty memory left in Interned Strings Free memory before upgrading to PHP 7.1.12. Question is if that was a bug before or not. Only thing I can say for sure, is that when there is no Interned Strings Free memory left in PHP 7.1.12, then PHP pages go down. That never happened in previous PHP versions. I have set opcache.interned_strings_buffer to 4, and by the way that is the default value according to http://php.net/manual/en/opcache.configuration.php I am worried about lack of response to from PHP developers to Bug #75579, my fear is that this will not be fixed anytime soon, so that I will be stuck on PHP 7.1.11 ------------------------------------------------------------------------ [2017-12-05 10:12:31] pascal dot nobus at webservice dot be The apache-logs show it was an apache-child that got the Segmentation fault: [Sun Dec 03 15:21:44.025975 2017] [core:notice] [pid 29980:tid 140454601000832] AH00052: child pid 4005 exit signal Segmentation fault (11) but that's quit normal because php is configured as a module (not fpm). According to the symptons it looks to me that it is related to bug 75579. However I can't see Interned Strings Used/Free memory, it's not in my phpinfo, nor in opcache_get_status I also have the default value for interned_strings_buffer opcache.interned_strings_buffer=8 ------------------------------------------------------------------------ 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=75621 -- Edit this bug report at https://bugs.php.net/bug.php?id=75621&edit=1