Edit report at https://bugs.php.net/bug.php?id=69326&edit=1
ID: 69326
Updated by: laruence@php.net
Reported by: pegasus at vaultwiki dot org
Summary: SIGSEGV (signal 11, Segmentation fault) in
zend_string.h
-Status: Open
+Status: Feedback
Type: Bug
Package: Reproducible crash
Operating System: Centos 6 64-bit
PHP Version: master-Git-2015-03-29 (Git)
Block user comment: N
Private report: N
New Comment:
Thank you for this bug report. To properly diagnose the problem, we
need a short but complete example script to be able to reproduce
this bug ourselves.
A proper reproducing script starts with <?php and ends with ?>,
is max. 10-20 lines long and does not require any external
resources such as databases, etc. If the script requires a
database to demonstrate the issue, please make sure it creates
all necessary tables, stored procedures etc.
Please avoid embedding huge scripts into the report.
if no reproduce script, we can't do much thing on this...
Previous Comments:
------------------------------------------------------------------------
[2015-03-29 05:28:49] pegasus at vaultwiki dot org
Description:
------------
A SIGSEGV appears in my php-fpm log files several times a day. I don't know which script is
causing it, or what other effects it might be having. I managed to get the following backtrace.
Note that I am unable to follow the instructions for "Locating which function call caused a
segfault" here: https://bugs.php.net/bugs-generating-backtrace.php
It seems that these instructions are either outdated or are not relevant for this particular
segfault. Any ideas?
Actual result:
--------------
#0 0x0000000000967202 in zend_mm_alloc_small (heap=0x7f44bd800040,
size=64, bin_num=7,
__zend_filename=0xf98a68 "/root/php-src-1646e0e/Zend/zend_string.h",
__zend_lineno=97, __zend_orig_filename=0x0, __zend_orig_lineno=0)
at /root/php-src-1646e0e/Zend/zend_alloc.c:1232
#1 0x0000000000967469 in zend_mm_alloc_heap (heap=0x7f44bd800040,
size=64,
__zend_filename=0xf98a68 "/root/php-src-1646e0e/Zend/zend_string.h",
__zend_lineno=97, __zend_orig_filename=0x0, __zend_orig_lineno=0)
at /root/php-src-1646e0e/Zend/zend_alloc.c:1299
#2 0x00000000009696be in _emalloc (size=32,
__zend_filename=0xf98a68 "/root/php-src-1646e0e/Zend/zend_string.h",
__zend_lineno=97, __zend_orig_filename=0x0, __zend_orig_lineno=0)
at /root/php-src-1646e0e/Zend/zend_alloc.c:2208
#3 0x0000000000989787 in zend_string_alloc (len=6, persistent=0)
at /root/php-src-1646e0e/Zend/zend_string.h:97
#4 0x00000000009927c0 in concat_function (result=0x7f44bd828a70,
op1=0x7f44bd828980, op2=0x7f4480831e10)
at /root/php-src-1646e0e/Zend/zend_operators.c:1555
#5 0x0000000000a3903e in ZEND_CONCAT_SPEC_CV_CONST_HANDLER (
execute_data=0x7f44bd828920)
at /root/php-src-1646e0e/Zend/zend_vm_execute.h:27768
#6 0x00000000009f181c in execute_ex (ex=0x7f44bd827030)
at /root/php-src-1646e0e/Zend/zend_vm_execute.h:394
#7 0x00000000009f1972 in zend_execute (op_array=0x7f44bd871000,
return_value=0x0) at /root/php-src-1646e0e/Zend/zend_vm_execute.h:434
#8 0x000000000099b34c in zend_execute_scripts (type=8, retval=0x0,
file_count=3) at /root/php-src-1646e0e/Zend/zend.c:1355
#9 0x000000000090a8cb in php_execute_script (primary_file=0x7fff4d767490)
at /root/php-src-1646e0e/main/main.c:2519
#10 0x0000000000a702b3 in main (argc=8, argv=0x7fff4d7676b8)
at /root/php-src-1646e0e/sapi/fpm/fpm/fpm_main.c:1891
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Edit this bug report at https://bugs.php.net/bug.php?id=69326&edit=1