Edit report at https://bugs.php.net/bug.php?id=50551&edit=1

 ID:                 50551
 Updated by:         paj...@php.net
 Reported by:        r dot badding at gmail dot com
 Summary:            mb_ereg + mb_eregi crash
 Status:             Feedback
 Type:               Bug
 Package:            mbstring related
 Operating System:   win32 only - Windows XP
 PHP Version:        5.2.12
 Block user comment: N
 Private report:     N

 New Comment:

@webmaster at bluesting dot co dot za

Please provide a small reproduce script for the crashes you are experiencing. 
It 
could be due to something totally different. Also be sure to use 5.3.8 or snaps.


Previous Comments:
------------------------------------------------------------------------
[2011-09-20 07:58:33] webmaster at bluesting dot co dot za

I have had very similar issues! At first I never noticed mb_ereg issues or 
crashes, until I started running some apache benchmarks on unrelated code to 
simulate server load, and noticed strange crashes. I eventually isolated the 
crashes to mb_ereg related code. To benchmark code with Apache Benchmark, I was 
using the "ab" command under apache/bin directory like this:

ab -t 30 -c 10 http://localhost/

With some mb_ereg code running in the very beginning (doing url detection). The 
actual code is actually not important because I get crashes with every 
combination I try! I think using Apache Benchmark is better than running this 
code in a loop because it will create 10 simultaneous connections simulating 
higher load instead of just the one connection. When I convert my code to use 
preg_match_all() ... I have NO issues! Only mb_ereg related functions causing 
crashes! I tried mb_ereg() and mb_ereg_search_init() + mb_ereg_search_regs() 
with the same unpredictable crashes!

Try the code above with Apache Benchmark and the commands I gave above, you 
should definately be able to simulate this issue!

------------------------------------------------------------------------
[2010-08-12 00:19:52] ka...@php.net

Have you tried on 5.3? I cannot reproduce it trunk and Vista x86 with 
memory_limit=128MB and configure --enable-mbstring --enable-mbregex (no 
backtrack stack)

------------------------------------------------------------------------
[2010-01-02 17:04:34] r dot badding at gmail dot com

Still getting the same crash with the snapshot php-5.2-win32-VC6-x86-
latest.

I made sure I had the correct extension dir in php.ini and no other 
php5ts.dll were found than the one in the snapshot. 

I think I haven't screwed up anything, but of course there's always that 
possibility. Don't think so though.

------------------------------------------------------------------------
[2009-12-30 14:43:24] j...@php.net

Please try using this snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/

Try the snap. Maybe it was fixed as I can't reproduce this. And when you reply, 
use the "Edit submission" tab!

------------------------------------------------------------------------
[2009-12-30 13:42:16] r dot badding at gmail dot com

So, nobody can reproduce? The testcase is simple at least...

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


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    https://bugs.php.net/bug.php?id=50551


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