Bug #64111 [Com]: Segfault in gc_zval_possible_root

From: Date: Tue, 14 Oct 2014 10:27:07 +0000
Subject: Bug #64111 [Com]: Segfault in gc_zval_possible_root
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-188081@lists.php.net to get a copy of this message
Edit report at https://bugs.php.net/bug.php?id=64111&edit=1

 ID:                 64111
 Comment by:         valery dot tereshko at gmail dot com
 Reported by:        remi@php.net
 Summary:            Segfault in gc_zval_possible_root
 Status:             Re-Opened
 Type:               Bug
 Package:            *General Issues
 Operating System:   GNU/Linux (Fedora 18)
 PHP Version:        5.4.11
 Block user comment: N
 Private report:     N

 New Comment:

I have same issue in php-5.5.15

Core was generated by `/usr/bin/php -q /home/moodlee/public_html/admin/cli/cron.php'.
Program terminated with signal 11, Segmentation fault.
#0  0x0844d25f in gc_zval_possible_root (zv=0xa60b9e8) at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_gc.c:143
143			GC_ZOBJ_CHECK_POSSIBLE_ROOT(zv);
(gdb) bt
#0  0x0844d25f in gc_zval_possible_root (zv=0xa60b9e8) at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_gc.c:143
#1  0x084501f8 in zend_object_std_dtor (object=0xa4d0644) at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_objects.c:54
#2  0x08450232 in zend_objects_free_object_storage (object=0xa4d0644) at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_objects.c:137
#3  0x08455858 in zend_objects_store_free_object_storage (objects=0x87fb0e0) at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_objects_API.c:97
#4  0x084239f1 in shutdown_executor () at
/home/cpeasyapache/src/php-5.5.15/Zend/zend_execute_API.c:293
#5  0x0842fe23 in zend_deactivate () at /home/cpeasyapache/src/php-5.5.15/Zend/zend.c:935
#6  0x083d2ab2 in php_request_shutdown (dummy=0x0) at
/home/cpeasyapache/src/php-5.5.15/main/main.c:1808
#7  0x084d15d9 in main (argc=3, argv=0xbfeaa914) at
/home/cpeasyapache/src/php-5.5.15/sapi/cgi/cgi_main.c:2505


Previous Comments:
------------------------------------------------------------------------
[2014-08-05 17:00:36] mike@php.net

commit typo

------------------------------------------------------------------------
[2014-08-05 16:50:02] mike@php.net

Automatic comment on behalf of mike
Revision: http://git.php.net/?p=pecl/http/pecl_http.git;a=commit;h=58410541834f8f897291c290d38e7a505dbb93c1
Log: fix bug #64111

------------------------------------------------------------------------
[2013-10-17 15:22:27] djonline at djonline dot ru

Same on 5.3.13

------------------------------------------------------------------------
[2013-03-04 16:51:19] jaredsmith at jaredsmith dot net

I'm also seeing this on PHP 5.4.12, for what it's worth.

Program terminated with signal 11, Segmentation fault.
#0  0x00007fce6f4635b9 in gc_zval_possible_root (zv=0x7fce7e2cbbd8)
    at /usr/src/debug/php-5.4.12/Zend/zend_gc.c:143
143			GC_ZOBJ_CHECK_POSSIBLE_ROOT(zv);

Full backtrace at http://web2.jaredsmith.net/core.6360.backtrace.txt,
and core file at http://web2.jaredsmith.net/core.6360.backtrace.txt.

Again, if a PHP developer is interested in looking more closely, I'm happy to help facilitate
access to a server.

------------------------------------------------------------------------
[2013-03-04 08:19:09] jaredsmith at jaredsmith dot net

I'm seeing this as well, on PHP 5.3.3 on RHEL 6.4 using Drupal as the main web application. 
See https://bugzilla.redhat.com/show_bug.cgi?id=915138
for more details, including links to core files, backtraces, etc.

Also, if a developer would like direct access to a server to help debug, I'd be willing to help
facilitate access.

------------------------------------------------------------------------


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