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

Edit report at https://bugs.php.net/bug.php?id=75744&edit=1 ID: 75744 Comment by: kochuev at gmail dot com 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: No, we are not using ZTS build and pthreads. Also as the problem appears only in the heavily loaded situation it's hard to run valgrind on a sample script. Also, this is not a cli script, but complex web system, so I'm not sure how to run php-fpm under valgrind. One thing that I noticed is that the number of crashes a bit reduces (-30%) with the following settings: opcache.fast_shutdown=1 opcache.interned_strings_buffer=256 opcache.memory_consumption=1024 Btw all the crashes happen in the endpoints dealing with soap extension. With opcache disabled number of crashes reduces -80%, but still, there are some, ex: Program terminated with signal 11, Segmentation fault. #0 zend_mm_alloc_small (size=<optimized out>, bin_num=6, heap=0x7f3ca6200040) at /usr/src/debug/php-7.0.25/Zend/zend_alloc.c:1306 1306 heap->free_slot[bin_num] = p->next_free_slot; #0 zend_mm_alloc_small (size=<optimized out>, bin_num=6, heap=0x7f3ca6200040) at /usr/src/debug/php-7.0.25/Zend/zend_alloc.c:1306 #1 _emalloc_56 () at /usr/src/debug/php-7.0.25/Zend/zend_alloc.c:2380 #2 0x000055f14ae7e990 in _array_init (arg=arg@entry=0x7fff1c86aaf0, size=0) at /usr/src/debug/php-7.0.25/Zend/zend_API.c:1059 #3 0x000055f14ae60a08 in zend_try_ct_eval_array (result=0x7fff1c86aaf0, ast=0x7f3c4cc46a58) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:5933 #4 0x000055f14ae600e8 in zend_eval_const_expr (ast_ptr=ast_ptr@entry=0x7fff1c86ab68) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7577 #5 0x000055f14ae60c80 in zend_const_expr_to_zval (result=result@entry=0x7fff1c86abb0, ast=ast@entry=0x7f3c4cc46a58) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7036 #6 0x000055f14ae61470 in zend_compile_prop_decl (ast=ast@entry=0x7f3c4cc46ac0) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:5036 #7 0x000055f14ae676f2 in zend_compile_stmt (ast=0x7f3c4cc46ac0) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7154 #8 0x000055f14ae682e7 in zend_compile_stmt_list (ast=ast@entry=0x7f3c4cd50878) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:4429 #9 0x000055f14ae6786e in zend_compile_stmt (ast=ast@entry=0x7f3c4cd50878) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7095 #10 0x000055f14ae685f2 in zend_compile_class_decl (ast=ast@entry=0x7f3c4cdb9558) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:5376 #11 0x000055f14ae67a08 in zend_compile_stmt (ast=ast@entry=0x7f3c4cdb9558) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7163 #12 0x000055f14ae6a05a in zend_compile_top_stmt (ast=0x7f3c4cdb9558) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7069 #13 0x000055f14ae6a09f in zend_compile_top_stmt (ast=0x7f3c4cc46018) at /usr/src/debug/php-7.0.25/Zend/zend_compile.c:7064 #14 0x000055f14ae4512d in compile_file (file_handle=<optimized out>, type=<optimized out>) at Zend/zend_language_scanner.l:608 #15 0x00007f3c96c75920 in phar_compile_file (file_handle=<optimized out>, type=<optimized out>) at /usr/src/debug/php-7.0.25/ext/phar/phar.c:3337 #16 0x000055f14ae4524d in compile_filename (type=8, filename=filename@entry=0x7f3ca6214ba0) at Zend/zend_language_scanner.l:649 #17 0x000055f14af02777 in ZEND_INCLUDE_OR_EVAL_SPEC_CV_HANDLER () at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:29518 #18 0x000055f14aebb9eb in execute_ex (ex=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:414 #19 0x000055f14ae6d59a in zend_call_function (fci=fci@entry=0x7fff1c86b4d0, fci_cache=0x7f3ca6258700, fci_cache@entry=0x7fff1c86b4a0) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:867 #20 0x000055f14ae9a793 in zend_call_method (object=0x7f3ca6256c68, obj_ce=<optimized out>, fn_proxy=0x7f3ca6256c60, function_name=0x7f3ca625ff68 "autoloader::loadclass\001", function_name_len=<optimized out>, retval_ptr=retval_ptr@entry=0x0, param_count=param_count@entry=1, arg1=0x7f3ca6214b20, arg2=arg2@entry=0x0) at /usr/src/debug/php-7.0.25/Zend/zend_interfaces.c:104 #21 0x000055f14ad80131 in zif_spl_autoload_call (execute_data=<optimized out>, return_value=<optimized out>) at /usr/src/debug/php-7.0.25/ext/spl/php_spl.c:421 #22 0x000055f14ae6d61c in zend_call_function (fci=fci@entry=0x7fff1c86b760, fci_cache=fci_cache@entry=0x7fff1c86b730) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:887 #23 0x000055f14ae6dcea in zend_lookup_class_ex (name=name@entry=0x7f3ca62a4560, key=0x7f3ca62f1820, use_autoload=use_autoload@entry=1) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:1049 #24 0x000055f14ae6e6a8 in zend_fetch_class_by_name (class_name=0x7f3ca62a4560, key=<optimized out>, fetch_type=fetch_type@entry=512) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:1395 #25 0x000055f14af00a54 in ZEND_INIT_STATIC_METHOD_CALL_SPEC_CONST_CONST_HANDLER () at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:5679 #26 0x000055f14aebb9eb in execute_ex (ex=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:414 #27 0x000055f14ae6d59a in zend_call_function (fci=fci@entry=0x7fff1c86b970, fci_cache=0x7f3ca6368a20, fci_cache@entry=0x0) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:867 #28 0x000055f14ae6dad9 in call_user_function_ex (function_table=function_table@entry=0x0, object=object@entry=0x7fff1c86bae0, function_name=function_name@entry=0x7fff1c86bac0, retval_ptr=retval_ptr@entry=0x7fff1c86bad0, param_count=<optimized out>, params=<optimized out>, no_separation=no_separation@entry=1, symbol_table=symbol_table@entry=0x0) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:675 #29 0x000055f14ae6db19 in call_user_function (function_table=function_table@entry=0x0, object=object@entry=0x7fff1c86bae0, function_name=function_name@entry=0x7fff1c86bac0, retval_ptr=retval_ptr@entry=0x7fff1c86bad0, param_count=<optimized out>, params=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_execute_API.c:657 #30 0x00007f3c95ef41fb in zim_SoapServer_handle (execute_data=<optimized out>, return_value=<optimized out>) at /usr/src/debug/php-7.0.25/ext/soap/soap.c:1863 #31 0x000055f14aefa4fb in ZEND_DO_FCALL_SPEC_HANDLER () at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:842 #32 0x000055f14aebb9eb in execute_ex (ex=<optimized out>) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:414 #33 0x000055f14af0620f in zend_execute (op_array=0x7f3ca6273000, op_array@entry=0x7f3ca62ddea0, return_value=return_value@entry=0x7f3ca6213420) at /usr/src/debug/php-7.0.25/Zend/zend_vm_execute.h:458 #34 0x000055f14ae7c8f3 in zend_execute_scripts (type=type@entry=8, retval=0x7f3ca6213420, retval@entry=0x0, file_count=file_count@entry=3) at /usr/src/debug/php-7.0.25/Zend/zend.c:1445 #35 0x000055f14ae1c8a8 in php_execute_script (primary_file=primary_file@entry=0x7fff1c86e060) at /usr/src/debug/php-7.0.25/main/main.c:2518 #36 0x000055f14acbbc74 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/php-7.0.25/sapi/fpm/fpm/fpm_main.c:1967 Previous Comments: ------------------------------------------------------------------------ [2017-12-29 17:52:16] nikic@php.net 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. ------------------------------------------------------------------------ [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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