Bug #67254 [Com]: PHP crashes in zend_stack_push

Edit report at https://bugs.php.net/bug.php?id=67254&edit=1 ID: 67254 Comment by: getriebesand at freenet dot de Reported by: majo-bugs dot php dot net at pematon dot com Summary: PHP crashes in zend_stack_push Status: Feedback Type: Bug Package: Reproducible crash Operating System: FreeBSD 9.2-RELEASE-p5 PHP Version: 5.5.19 Block user comment: N Private report: N New Comment: I don't know how. I don't use dtrace. Maybe I have to file a bug report to the maintainer of the package. (I use the default packege for ubuntu 14.04 LTS) then forget my bt and use majo-bugs's bt But this error is hard to reproduce because it only happens on many requests. Bofore I had have opcache enabled and got many fatal error that a function can not be redeclared. But I checked the code many times. Even with require_once and check if function_exists(). Then I disabled opcache and since then I get seg faults. I use Apache mpm-prefork and have tried to use different configs (reduce MaxConnectionsPerChild...) but it didn't solve anything. Previous Comments: ------------------------------------------------------------------------ [2015-02-16 23:44:47] rasmus@php.net getriebesand dtrace? Try it without dtrace. ------------------------------------------------------------------------ [2015-02-16 17:36:08] getriebesand at freenet dot de Same here: Ubuntu 14.04 PHP 5.5.9-1ubuntu4.5 Apache 2.4.7 This happend every few minutes on a php file with highest requests on our server (8 req/sec) #0 0x00007ff0931da97d in zend_stack_push (stack=stack@entry=0x7ff0939a0ca0 <compiler_globals+608>, element=element@entry=0x7ff0939a0c78 <compiler_globals+568>, size=size@entry=40) at /build/buildd/php5-5.5.9+dfsg/Zend/zend_stack.c:42 #1 0x00007ff0931a631e in compile_file (file_handle=file_handle@entry=0x7fffe2adee30, type=2) at Zend/zend_language_scanner.l:586 #2 0x00007ff0931cbafa in dtrace_compile_file (file_handle=0x7fffe2adee30, type=<optimized out>) at /build/buildd/php5-5.5.9+dfsg/Zend/zend_dtrace.c:40 #3 0x00007ff093054cb4 in phar_compile_file (file_handle=<optimized out>, type=<optimized out>) at /build/buildd/php5-5.5.9+dfsg/ext/phar/phar.c:3383 #4 0x00007ff0931dd57f in zend_execute_scripts (type=type@entry=2, retval=retval@entry=0x0, file_count=file_count@entry=1) at /build/buildd/php5-5.5.9+dfsg/Zend/zend.c:1308 #5 0x00007ff09328d4fd in php_handler (r=<optimized out>) at /build/buildd/php5-5.5.9+dfsg/sapi/apache2handler/sapi_apache2.c:669 #6 0x00007ff097b8a680 in ap_run_handler () #7 0x00007ff097b8abc9 in ap_invoke_handler () #8 0x00007ff097ba016a in ap_process_async_request () #9 0x00007ff097ba0444 in ap_process_request () #10 0x00007ff097b9cf02 in ?? () #11 0x00007ff097b93cc0 in ap_run_process_connection () #12 0x00007ff093bad767 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so #13 0x00007ff093bad9a6 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so #14 0x00007ff093bae60e in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so #15 0x00007ff097b7169e in ap_run_mpm () #16 0x00007ff097b6ae36 in main () ------------------------------------------------------------------------ [2015-01-04 01:31:27] majo-bugs dot php dot net at pematon dot com The error message is: Program terminated with signal 11, Segmentation fault. ------------------------------------------------------------------------ [2015-01-04 01:23:22] majo-bugs dot php dot net at pematon dot com Trying to re-open. ------------------------------------------------------------------------ [2015-01-04 01:22:36] majo-bugs dot php dot net at pematon dot com Bellow is the stack trace with line numbers. Meanwhile the PHP has been upgraded to 5.5.19 and apache to 2.4.10. (gdb) bt #0 zend_stack_push (stack=0x805aa4640, element=0x805aa4618, size=<value optimized out>) at /tmp/portbuild/usr/ports/www/mod_php55/work/php-5.5.19/Zend/zend_stack.c:42 #1 0x00000008056647ab in compile_file (file_handle=0x7fffffffd640, type=2) at zend_language_scanner.l:586 #2 0x000000080c9ce935 in phar_compile_file () from /usr/local/lib/php/20121212/phar.so #3 0x0000000806c8e95e in persistent_compile_file () from /usr/local/lib/php/20121212/opcache.so #4 0x000000080569b91d in zend_execute_scripts (type=2, retval=0x0, file_count=1) at /tmp/portbuild/usr/ports/www/mod_php55/work/php-5.5.19/Zend/zend.c:1322 #5 0x0000000805748e01 in php_handler (r=0x8125f0620) at /tmp/portbuild/usr/ports/www/mod_php55/work/php-5.5.19/sapi/apache2handler/sapi_apache2.c:669 #6 0x000000000044f07a in ap_run_handler () #7 0x0000000000452de2 in ap_invoke_handler () #8 0x000000000046449a in ap_internal_redirect () #9 0x000000080526e820 in ?? () from /usr/local/libexec/apache24/mod_rewrite.so #10 0x000000000044f07a in ap_run_handler () #11 0x0000000000452de2 in ap_invoke_handler () #12 0x000000000046487e in ap_process_async_request () #13 0x00000000004649bf in ap_process_request () #14 0x0000000000461115 in ap_expr_yylex () #15 0x0000000000459452 in ap_run_process_connection () #16 0x000000000046ac27 in ap_set_etag () #17 0x000000000046aea4 in ap_set_etag () #18 0x000000000046b806 in ap_set_etag () #19 0x0000000000436462 in ap_run_mpm () #20 0x0000000000430543 in main () Please re-open the bug. I'm getting ERROR: You aren't allowed to change a bug to that state. ------------------------------------------------------------------------ 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=67254 -- Edit this bug report at https://bugs.php.net/bug.php?id=67254&edit=1