ID: 43476
User updated by: erno dot kovacs at freemail dot hu
Reported By: erno dot kovacs at freemail dot hu
-Status: Feedback
+Status: Open
Bug Type: Reproducible crash
Operating System: Debian etch, Linux 2.6
PHP Version: 5.2.5
New Comment:
Core was generated by `/usr/local/php5/bin/php-cgi -e -b localhost:9001
-c /usr/local/apachehoste/conf'.
Program terminated with signal 11, Segmentation fault.
#0 0x082a6e05 in zend_mm_check_ptr (heap=0x85b7178, ptr=0xb4dce2f0,
silent=1,
__zend_filename=0x855d3fc "/home/rsctm/php-5.2.5/main/SAPI.c",
__zend_lineno=445, __zend_orig_filename=0x0,
__zend_orig_lineno=0) at
/home/rsctm/php-5.2.5/Zend/zend_alloc.c:1276
1276 if (p->info._size != ZEND_MM_NEXT_BLOCK(p)->info._prev)
{
(gdb) bt
#0 0x082a6e05 in zend_mm_check_ptr (heap=0x85b7178, ptr=0xb4dce2f0,
silent=1,
__zend_filename=0x855d3fc "/home/rsctm/php-5.2.5/main/SAPI.c",
__zend_lineno=445, __zend_orig_filename=0x0,
__zend_orig_lineno=0) at
/home/rsctm/php-5.2.5/Zend/zend_alloc.c:1276
#1 0x082a834d in _zend_mm_free_int (heap=0x85b7178, p=0xb4dce2f0,
__zend_filename=0x855d3fc "/home/rsctm/php-5.2.5/main/SAPI.c",
__zend_lineno=445, __zend_orig_filename=0x0, __zend_orig_lineno=0)
at /home/rsctm/php-5.2.5/Zend/zend_alloc.c:1909
#2 0x082a948d in _efree (ptr=0xb4dce2f0, __zend_filename=0x855d3fc
"/home/rsctm/php-5.2.5/main/SAPI.c", __zend_lineno=445,
__zend_orig_filename=0x0, __zend_orig_lineno=0) at
/home/rsctm/php-5.2.5/Zend/zend_alloc.c:2277
#3 0x0827c0de in sapi_deactivate () at
/home/rsctm/php-5.2.5/main/SAPI.c:445
#4 0x0827432c in php_request_shutdown (dummy=0x0) at
/home/rsctm/php-5.2.5/main/main.c:1494
#5 0x083431c9 in main (argc=6, argv=0xbfa60cb4) at
/home/rsctm/php-5.2.5/sapi/cgi/cgi_main.c:1972
Most of the backtraces are the same, there is one which differ, it
segfaulted in line 1284 instead of 1276.
Previous Comments:
------------------------------------------------------------------------
[2007-12-02 16:00:44] [EMAIL PROTECTED]
Please recompile with --enable-debug and try generating a backtrace
then.
------------------------------------------------------------------------
[2007-12-02 13:29:43] erno dot kovacs at freemail dot hu
Description:
------------
I have used PHP 5.2.4 for a long while without any problems. Recently I
upgraded to 5.2.5, and it segfaults like 15-20 times a day.
Configuration is exactly the same with the two versions, no extensions
loaded.
I run PHP in FastCGI mode binding to a TCP socket (-b), webserver is
Apache2/mod_fastcgi.
I moved back to 5.2.4 so problem is gone...
Reproduce code:
---------------
./configure --disable-all --prefix=/usr/local/php5 --enable-fastcgi
--enable-discard-path --with-jpeg-dir --with-png-dir --with-freetype-dir
--with-gd --with-mysql=/usr --with-mm --with-zlib-dir
--enable-mbstring=all --with-mcrypt --with-iconv --enable-mbregex
--with-gettext --enable-ctype --with-imap --with-imap-ssl --with-openssl
--with-kerberos --with-mime-magic=/usr/share/file/magic.mime
--with-pcre-regex --enable-mbregex --enable-xml --enable-libxml
--enable-simplexml --enable-dom --enable-calendar --enable-tokenizer
--enable-session --with-pear --with-tsrm-pthreads
--enable-inline-optimization --enable-json --enable-short-tags
Expected result:
----------------
Dec 1 16:37:07 foobar kernel: php-cgi[17725]: segfault at b514e338 eip
08214865 esp bfb7c940 error 4
Dec 1 16:37:09 foobar kernel: php-cgi[17728]: segfault at 0000000c eip
08214c27 esp bfb7c940 error 4
Dec 1 16:37:14 foobar kernel: php-cgi[17726]: segfault at b4fdc234 eip
08214865 esp bfb7c940 error 4
Dec 1 16:37:17 foobar kernel: php-cgi[28333]: segfault at b521d6c4 eip
08214865 esp bfb7c940 error 4
Actual result:
--------------
I have many core files and the backtrace is the same in them:
(gdb) bt
#0 _zend_mm_free_int (heap=0x84fb178, p=0xb521d744) at
/home/rsctm/php-5.2.5/Zend/zend_alloc.c:1914
#1 0x081f6d3b in sapi_deactivate () at
/home/rsctm/php-5.2.5/main/SAPI.c:445
#2 0x081eedd5 in php_request_shutdown (dummy=0x0) at
/home/rsctm/php-5.2.5/main/main.c:1494
#3 0x082a92c6 in main (argc=6, argv=0xbfb7fdc4) at
/home/rsctm/php-5.2.5/sapi/cgi/cgi_main.c:1972
Unfortunately -e didnt generate any more debugging information.
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=43476&edit=1
