Bug #75744 [Opn]: Sporadic crashes when opcache enabled

Edit report at https://bugs.php.net/bug.php?id=75744&edit=1 ID: 75744 Updated by: nikic@php.net Reported by: kochuev at gmail dot com Summary: Sporadic crashes when opcache enabled Status: Open Type: Bug Package: opcache Operating System: Oracle Linux PHP Version: 7.0.26 Block user comment: N Private report: N New Comment: Not seeing anything obvious in these traces. They do not look like something triggered by protect_memory, so it's probably no simple SHM corruption. Could it be that you are using a ZTS build of PHP? Another thing that might or might not work is to run PHP under valgrind (using USE_ZEND_ALLOC=0 ZEND_DONT_UNLOAD_MODULES=1 valgrind php [args]) and see if this produces reliable memory errors. Previous Comments: ------------------------------------------------------------------------ [2017-12-29 15:07:31] kochuev at gmail dot com More crashes with opcache.fast_shutdown=0 + opcache.protect_memory=1 Program terminated with signal 11, Segmentation fault. #0 _zval_dtor_func (p=0x600000001) at /usr/src/debug/php-7.0.25/Zend/zend_variables.c:33 33 if (--GC_REFCOUNT(p)) { #0 _zval_dtor_func (p=0x600000001) at /usr/src/debug/php-7.0.25/Zend/zend_variables.c:33 #1 0x00005642fb1064f5 in _zval_dtor (zvalue=0x7f0d8de7f660, zvalue=0x7f0d8de7f660) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:44 #2 free_zend_constant (zv=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_constants.c:36 #3 0x00005642fb12af85 in _zend_hash_del_el_ex (prev=<optimized out>, p=<optimized out>, idx=<optimized out>, ht=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1025 #4 _zend_hash_del_el (p=0x7f0d92b6b710, idx=2872, ht=0x5642fd0835a0) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1049 #5 zend_hash_reverse_apply (ht=0x5642fd0835a0, apply_func=apply_func@entry=0x5642fb106440 <clean_non_persistent_constant>) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1631 #6 0x00005642fb1067c3 in clean_non_persistent_constants () at /usr/src/debug/php-7.0.25/Zend/zend_constants.c:161 #7 0x00005642fb1087a5 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:347 #8 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #9 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #10 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 php_stream_notification_free (notifier=0xffffffff) at /usr/src/debug/php-7.0.25/main/streams/streams.c:2211 2211 if (notifier->dtor) { #0 php_stream_notification_free (notifier=0xffffffff) at /usr/src/debug/php-7.0.25/main/streams/streams.c:2211 #1 0x00005642fb0d2227 in php_stream_context_free (context=0x7f0d8de7db40) at /usr/src/debug/php-7.0.25/main/streams/streams.c:2186 #2 0x00005642fb12d5d1 in zend_resource_dtor (res=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_list.c:76 #3 0x00005642fb12d623 in zend_close_rsrc (zv=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_list.c:230 #4 0x00005642fb12aeb2 in zend_hash_reverse_apply (ht=0x5642fb518558 <executor_globals+536>, apply_func=apply_func@entry=0x5642fb12d610 <zend_close_rsrc>) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1628 #5 0x00005642fb12dc0c in zend_close_rsrc_list (ht=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_list.c:238 #6 0x00005642fb108793 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:351 #7 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #8 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #9 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 zend_object_std_dtor (object=0x7f0d8de80b60) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:59 59 if (EXPECTED(!(GC_FLAGS(object->properties) & IS_ARRAY_IMMUTABLE))) { #0 zend_object_std_dtor (object=0x7f0d8de80b60) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:59 #1 0x00005642fb153c11 in zend_objects_store_del (object=0x7f0d8de80b60) at /usr/src/debug/php-7.0.25/Zend/zend_objects_API.c:178 #2 0x00005642fb129bc7 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de97568) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #3 zend_array_destroy (ht=0x7f0d8de801f8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1334 #4 0x00005642fb14eed4 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de81108) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #5 zend_object_std_dtor (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:69 #6 0x00005642fb153c11 in zend_objects_store_del (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects_API.c:178 #7 0x00005642fb10c140 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de696a0) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #8 zend_cleanup_user_class_data (ce=0x7f0d8de0a800) at /usr/src/debug/php-7.0.25/Zend/zend_opcode.c:167 #9 0x00005642fb108415 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:336 #10 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #11 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #12 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 0xfffffff80000001a in ?? () #0 0xfffffff80000001a in ?? () #1 0x00005642fb129a4d in zend_hash_destroy (ht=0x7f0d8de7eab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1264 #2 0x00005642fb129d19 in zend_array_destroy (ht=0x7f0d8de7eab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1324 #3 0x00005642fb129c98 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de6ef60) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #4 zend_array_destroy (ht=0x7f0d8de7e150) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1338 #5 0x00005642fb14eed4 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de7f118) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #6 zend_object_std_dtor (object=0x7f0d8de7f0c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:69 #7 0x00005642fb153c11 in zend_objects_store_del (object=0x7f0d8de7f0c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects_API.c:178 #8 0x00005642fb10c140 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de6c6a0) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #9 zend_cleanup_user_class_data (ce=0x7f0d8de0a800) at /usr/src/debug/php-7.0.25/Zend/zend_opcode.c:167 #10 0x00005642fb108415 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:336 #11 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #12 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #13 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 0xfffffff80000001a in ?? () #0 0xfffffff80000001a in ?? () #1 0x00005642fb129a4d in zend_hash_destroy (ht=0x7f0d8de80ab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1264 #2 0x00005642fb129d19 in zend_array_destroy (ht=0x7f0d8de80ab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1324 #3 0x00005642fb129c98 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de6bf60) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #4 zend_array_destroy (ht=0x7f0d8de80150) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1338 #5 0x00005642fb14eed4 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de81118) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #6 zend_object_std_dtor (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:69 #7 0x00005642fb153c11 in zend_objects_store_del (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects_API.c:178 #8 0x00005642fb10c140 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de696a0) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #9 zend_cleanup_user_class_data (ce=0x7f0d8de0a800) at /usr/src/debug/php-7.0.25/Zend/zend_opcode.c:167 #10 0x00005642fb108415 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:336 #11 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #12 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #13 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 0xfffffff80000001a in ?? () #0 0xfffffff80000001a in ?? () #1 0x00005642fb129a4d in zend_hash_destroy (ht=0x7f0d8de80ab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1264 #2 0x00005642fb129d19 in zend_array_destroy (ht=0x7f0d8de80ab8) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1324 #3 0x00005642fb129c98 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de6bf60) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #4 zend_array_destroy (ht=0x7f0d8de80150) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1338 #5 0x00005642fb14eed4 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de81118) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #6 zend_object_std_dtor (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects.c:69 #7 0x00005642fb153c11 in zend_objects_store_del (object=0x7f0d8de810c0) at /usr/src/debug/php-7.0.25/Zend/zend_objects_API.c:178 #8 0x00005642fb10c140 in i_zval_ptr_dtor (zval_ptr=0x7f0d8de696a0) at /usr/src/debug/php-7.0.25/Zend/zend_variables.h:58 #9 zend_cleanup_user_class_data (ce=0x7f0d8de0a800) at /usr/src/debug/php-7.0.25/Zend/zend_opcode.c:167 #10 0x00005642fb108415 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:336 #11 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #12 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #13 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 zend_string_release (s=0x6) at /usr/src/debug/php-7.0.25/Zend/zend_string.h:269 269 if (!ZSTR_IS_INTERNED(s)) { #0 zend_string_release (s=0x6) at /usr/src/debug/php-7.0.25/Zend/zend_string.h:269 #1 free_zend_constant (zv=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_constants.c:41 #2 0x00005642fb12af85 in _zend_hash_del_el_ex (prev=<optimized out>, p=<optimized out>, idx=<optimized out>, ht=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1025 #3 _zend_hash_del_el (p=0x7f0d92b6c650, idx=2994, ht=0x5642fd0835a0) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1049 #4 zend_hash_reverse_apply (ht=0x5642fd0835a0, apply_func=apply_func@entry=0x5642fb106440 <clean_non_persistent_constant>) at /usr/src/debug/php-7.0.25/Zend/zend_hash.c:1631 #5 0x00005642fb1067c3 in clean_non_persistent_constants () at /usr/src/debug/php-7.0.25/Zend/zend_constants.c:161 #6 0x00005642fb1087a5 in shutdown_executor () at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:347 #7 0x00005642fb118598 in zend_deactivate () at /usr/src/debug/php-7.0.25/Zend/zend.c:985 #8 0x00005642fb0b7411 in php_request_shutdown (dummy=dummy@entry=0x0) at /usr/src/debug/php-7.0.25/main/main.c:1856 #9 0x00005642faf57cde in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1995 --- Program terminated with signal 11, Segmentation fault. #0 0x0000001500000001 in ?? () #0 0x0000001500000001 in ?? () #1 0x00005642fb1100d5 in _zval_get_string_func (op=op@entry=0x7f0d8de130d0) at /usr/src/debug/php-7.0.25/Zend/zend_operators.c:857 #2 0x00005642fb169d65 in ZEND_FAST_CONCAT_SPEC_TMPVAR_CONST_HANDLER () at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:42227 #3 0x00005642fb1579eb in execute_ex (ex=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:414 #4 0x00005642fb1a220f in zend_execute (op_array=0x7f0d8de5e0e0, op_array@entry=0x7f0d1ae06b68, return_value=return_value@entry=0x7f0d8de13030) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:458 #5 0x00005642fb1188f3 in zend_execute_scripts (type=type@entry=8, retval=0x7f0d8de13030, retval@entry=0x0, file_count=file_count@entry=3) at /usr/src/debug/php-7.0.25/Zend/zend.c:1445 #6 0x00005642fb0b88a8 in php_execute_script (primary_file=primary_file@entry=0x7ffdb36cbfc0) at /usr/src/debug/php-7.0.25/main/main.c:2518 #7 0x00005642faf57c74 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1967 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. 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