Req #76144 [Opn->Spm]: 10298357640

Edit report at https://bugs.php.net/bug.php?id=76144&edit=1 ID: 76144 Updated by: nikic@php.net Reported by: gcan114115 at gmail dot com Summary: 10298357640 -Status: Open +Status: Spam Type: Feature/Change Request Package: Other web server Operating System: çalma PHP Version: Next Major Version Block user comment: N Private report: N Previous Comments: ------------------------------------------------------------------------ [2018-03-23 17:51:04] gcan114115 at gmail dot com Description: ------------ Remove any limits you may have on core dump size from your shell: tcsh: unlimit coredumpsize bash/sh: ulimit -c unlimited Ensure that the directory in which you're running PHP, or the PHP-enabled httpd, has write permissions for the user who's running PHP. Cause PHP to crash: PHP CGI: Simply run php with the script that crashes it PHP Apache Module: Run httpd -X, and access the script that crashes PHP Test script: --------------- Set up the core pattern (run this command as root): echo "<cores dir>/core-%e.%p" > /proc/sys/kernel/core_pattern make sure the directory is writable by PHP Set the ulimit (see above how to do it). Restart/rerun PHP. Expected result: ---------------- Run httpd -X under gdb with something like: gdb /usr/local/apache/sbin/httpd (gdb) run -X Then use your web browser and access your server to force the crash. You should see a gdb prompt appear and some message indicating that there was a crash. At this gdb prompt, type: (gdb) bt or, running from the commandline gdb /home/user/dev/php-snaps/sapi/cli/php (gdb) run /path/to/script.php (gdb) bt Actual result: -------------- Sample gdb session (gdb) bt #0 0x080ca21b in _efree (ptr=0xbfffdb9b) at zend_alloc.c:240 #1 0x080d691a in _zval_dtor (zvalue=0x8186b94) at zend_variables.c:44 #2 0x080cfab3 in _zval_ptr_dtor (zval_ptr=0xbfffdbfc) at zend_execute_API.c:274 #3 0x080f1cc4 in execute (op_array=0x816c670) at ./zend_execute.c:1605 #4 0x080f1e06 in execute (op_array=0x816c530) at ./zend_execute.c:1638 #5 0x080f1e06 in execute (op_array=0x816c278) at ./zend_execute.c:1638 #6 0x080f1e06 in execute (op_array=0x8166eec) at ./zend_execute.c:1638 #7 0x080d7b93 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at zend.c:810 #8 0x0805ea75 in php_execute_script (primary_file=0xbffff650) at main.c:1310 #9 0x0805cdb3 in main (argc=2, argv=0xbffff6fc) at cgi_main.c:753 #10 0x400c91be in __libc_start_main (main=0x805c580 , argc=2, ubp_av=0xbffff6fc, init=0x805b080 <_init>, fini=0x80f67b4 <_fini>, rtld_fini=0x4000ddd0 <_dl_fini>, stack_end=0xbffff6ec) at ../sysdeps/generic/libc-start.c:129 (gdb) frame 3 #3 0x080f1cc4 in execute (op_array=0x816c670) at ./zend_execute.c:1605 (gdb) print (char *)(executor_globals.function_state_ptr->function)->common.function_name $14 = 0x80fa6fa "pg_result_error" (gdb) print (char *)executor_globals.active_op_array->function_name $15 = 0x816cfc4 "result_error" (gdb) print (char *)executor_globals.active_op_array->filename $16 = 0x816afbc "/home/yohgaki/php/DEV/segfault.php" (gdb) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=76144&edit=1