lang/php53 dumps core

[Volodymyr Kostyrko]

Hi all.

On some of my servers php keeps dumping core on some requests. There are 
days that it dumps core almost continuously. However there are days it 
works smoothly.

FreeBSD kohrah.xim.bz 9.0-RELEASE-p3 FreeBSD 9.0-RELEASE-p3 #0 r236967: 
Tue Jun 12 22:25:24 EEST 2012 
arcade at kohrah.xim.bz:/usr/obj/usr/src/sys/MINIMAL  amd64

The general cause is:

Jul 23 16:27:09 kohrah kernel: pid 49951 (php-fpm), uid 80: exited on 
signal 11 (core dumped)

And in very rare case:

[23-Jul-2012 16:26:40] WARNING: [pool www] child 49887 said into stderr: 
"zend_mm_heap corrupted"
[23-Jul-2012 16:26:40] WARNING: [pool www] child 49887 exited with code 
1 after 36.791579 seconds from start

There's a backtrace on the core:

#0  0x000000000056b9fe in gc_zval_possible_root ()
[New Thread 802007400 (LWP 149340/php-fpm)]
(gdb) bt full
#0  0x000000000056b9fe in gc_zval_possible_root ()
No symbol table info available.
#1  0x000000000055ce83 in zend_hash_destroy ()
No symbol table info available.
#2  0x000000000056f79e in zend_objects_free_object_storage ()
No symbol table info available.
#3  0x0000000000572757 in zend_objects_store_free_object_storage ()
No symbol table info available.
#4  0x00000000005465eb in shutdown_executor ()
No symbol table info available.
#5  0x0000000000552400 in zend_deactivate ()
No symbol table info available.
#6  0x0000000000506506 in php_request_shutdown ()
No symbol table info available.
#7  0x00000000005d0548 in main ()
No symbol table info available.

What other data I should collect to file a PR? Or is this just a memory 
problem?

-- 
Sphinx of black quartz judge my vow.