#38111 [Com]: PHP crashes IIS worker process and application pool

From: Date: Sat, 20 Dec 2008 00:07:28 +0000
Subject: #38111 [Com]: PHP crashes IIS worker process and application pool
References: 1  Groups: php.bugs 
Request: Send a blank email to php-bugs+get-132188@lists.php.net to get a copy of this message 
 ID:               38111
 Comment by:       studium at christophsackl dot com
 Reported By:      svendavidh at hotmail dot com
 Status:           No Feedback
 Bug Type:         IIS related
 Operating System: Windows Server 2003 Std. Ed. R2
 PHP Version:      5.1.4
 Assigned To:      pajoye
 New Comment:

This bug still exists in PHP 5.3.8 32-bit and also with self-compiled
64-bit Version.


Previous Comments:
------------------------------------------------------------------------

[2008-11-28 01:00:00] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

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

[2008-11-25 16:50:58] brice at digito dot fr

Hello,

I've the same problem here ! I have a Windows 2008 Server/IIS7/PHP5.
When IIS7 recycle a pool (all 20 minutes of inactivity or all 1740
minutes by default) PHP5 generate an error of w3wp.exe. 
I see exactly the same problem here :
http://www.developersdex.com/asp/message.asp?p=592&r=6057007.


"I can reproduce this on IIS7 with PHP 5.2.5.
This is a bug in the PHP ISAPI DLL during DLL unload. It is trying to
double-free a piece of memory. When you recycle the Application Pool,
it causes the w3wp.exe to shutdown and unload all ISAPI DLLs, hence
triggering the PHP bug.
The crash happen regardless of the IIS Application Pool identity.
This should just be reported to PHP as a bug."

Good luck !

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

[2008-11-20 16:27:15] pajoye@php.net

Thank you for this bug report. To properly diagnose the problem, we
need a backtrace to see what is happening behind the scenes. To
find out how to generate a backtrace, please read
http://bugs.php.net/bugs-generating-backtrace.php
for *NIX and
http://bugs.php.net/bugs-generating-backtrace-win32.php
for Win32

Once you have generated a backtrace, please submit it to this bug
report and change the status back to "Open". Thank you for helping
us make PHP better.

We are asking for more info (a backtrace)...

I would also recommend to use the FCGI interface instead of the ISAPI.

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

[2008-11-20 15:53:05] iisworkerbug at willko dot com

WS 2K3 Web Ed w IIS
PHP 5.2.6
MySQL 5.0.67 win32
Joomla 1.5.7

As others have stated I see this error on a regular basis:

IIS Worker Process encountered a problem and needed to close.
szAppName : w3wp.exe     szAppVer : 6.0.3790.3959     szModName :
w3core.dll
szModVer : 6.0.3790.3959     offset : 000201b4

Is there any more info available yet?

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

[2008-07-13 01:00:01] php-bugs at lists dot php dot net

No feedback was provided for this bug for over a week, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".

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

The remainder of the comments for this report are too long. To view
the rest of the comments, please view the bug report online at
    http://bugs.php.net/38111

-- 
Edit this bug report at http://bugs.php.net/?id=38111&edit=1

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