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Bug #68781 Segmentation fault on shutdown
Submitted: 2015-01-09 15:54 UTC Modified: 2016-04-10 04:22 UTC
From: xoJIog at inbox dot lv Assigned:
Status: No Feedback Package: *General Issues
PHP Version: 5.5.20 OS: gentoo
Private report: No CVE-ID: None
View Developer Edit
 [2015-01-09 15:54 UTC] xoJIog at inbox dot lv 
Description:
------------
PHP segfaults during process shutdown and exists with
WARNING: [pool www] child 27239 exited on signal 11 (SIGSEGV - core dumped) after 569.315534 seconds from start


Actual result:
--------------
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0852df8f in zend_mm_check_ptr (heap=0xae71d28, ptr=0xa95a930c, silent=0, __zend_filename=0x8a26344 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c", __zend_lineno=1645, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:1393
1393    /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c: No such file or directory.
(gdb) bt
#0  0x0852df8f in zend_mm_check_ptr (heap=0xae71d28, ptr=0xa95a930c, silent=0, __zend_filename=0x8a26344 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c", __zend_lineno=1645, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:1393
#1  0x0852df66 in zend_mm_check_ptr (heap=0xae71d28, ptr=0xa95a930c, silent=1, __zend_filename=0x8a26344 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c", __zend_lineno=1645, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:1389
#2  0x0852fa23 in _zend_mm_free_int (heap=0xae71d28, p=0xa95a930c, __zend_filename=0x8a26344 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c", __zend_lineno=1645, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:2068
#3  0x08530ea4 in _efree (ptr=0xa95a930c, __zend_filename=0x8a26344 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c", __zend_lineno=1645, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:2440
#4  0x08281454 in zm_deactivate_mbstring (type=1, module_number=23) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/ext/mbstring/mbstring.c:1645
#5  0x085718f8 in zend_deactivate_modules () at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_API.c:2433
#6  0x084d38e1 in php_request_shutdown (dummy=0x0) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/main/main.c:1777
#7  0x08626bca in main (argc=5, argv=0xbf43a094) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/sapi/fpm/fpm/fpm_main.c:1977



#0  0xabd15942 in __kernel_vsyscall ()
#1  0xaacba916 in kill () from /lib/libc.so.6
#2  0x0852c53d in zend_mm_panic (message=0x8a8c943 "zend_mm_heap corrupted") at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:92
#3  0x0852f2d9 in _zend_mm_alloc_int (heap=0xae71d28, size=20, __zend_filename=0x8a95e74 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_vm_execute.h", __zend_lineno=6253, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:1912
#4  0x08530e32 in _emalloc (size=20, __zend_filename=0x8a95e74 "/var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_vm_execute.h", __zend_lineno=6253, __zend_orig_filename=0x0, __zend_orig_lineno=0)
    at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_alloc.c:2429
#5  0x085b39b0 in ZEND_ADD_ARRAY_ELEMENT_SPEC_CONST_UNUSED_HANDLER (execute_data=0xa958e850) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_vm_execute.h:6253
#6  0x085a6d63 in execute_ex (execute_data=0xa958e850) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_vm_execute.h:363
#7  0x085a6df1 in zend_execute (op_array=0xa95ab434) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend_vm_execute.h:388
#8  0x08568260 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/Zend/zend.c:1330
#9  0x084d4fb0 in php_execute_script (primary_file=0xbf439f44) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/main/main.c:2506
#10 0x08626a4c in main (argc=5, argv=0xbf43a094) at /var/tmp/portage/dev-lang/php-5.5.20/work/sapis-build/fpm/sapi/fpm/fpm/fpm_main.c:1949

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 [2015-01-10 02:25 UTC] rasmus@php.net
-Status: Open +Status: Analyzed
 [2015-01-10 02:25 UTC] rasmus@php.net 
Not much to go on here. Do you have a reproducing code snippet. Probably something involving mbstring?
 [2016-03-27 20:07 UTC] nikic@php.net
-Status: Analyzed +Status: Feedback
 [2016-04-10 04:22 UTC] php-bugs at lists dot php dot net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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