Discussion:
The w3wp process is down with exception
(too old to reply)
Wei Lu
2009-09-03 03:56:08 UTC
Permalink
Hi all,

Nowadays our webserver is unstable. Sometime the w3wp process is down and
make the web site show "Service Unavailable"

The event viewer shows this error:

Faulting application w3wp.exe, version 6.0.3790.3959, stamp 45d6968e,
faulting module kernel32.dll, version 5.2.3790.3959, stamp 45d72003, debug?
0, fault address 0x0000bee7.

Any thing I can do to troubleshoot this error?

Wei Lu
Jialiang Ge [MSFT]
2009-09-03 11:03:09 UTC
Permalink
Hello Wei

Please use Debug Diag to capture IIS crashes on your web server. Here are
several good turtuorials telling how to do it:
http://www.shanmcarthur.net/technical-topics/debugging-a-crashing-iis-websit
e
http://blogs.msdn.com/tess/archive/2008/05/21/debugdiag-1-1-or-windbg-which-
one-should-i-use-and-how-do-i-gather-memory-dumps.aspx

IIS Diagnostics Toolkit (x86)
http://www.microsoft.com/downloads/details.aspx?familyid=9BFA49BC-376B-4A54-
95AA-73C9156706E7&displaylang=en

IIS Diagnostics Toolkit (x64)
http://www.microsoft.com/downloads/details.aspx?familyid=7E42B310-B2D1-496B-
8005-9D91782B9995&displaylang=en

Step 1 Download and install the tool on your web server.
Step2. Run the Debug Diagnostics Tool. The first time it is run, a wizard
will be presented.
Select Crash to set up a crash dump rule. Click Next.
Select "All IIS related processes". Click Next.
Select "Mini Userdump" for first chance exceptions. Set a limit. Click
Next.
Type in a rule name and path or use the defaults. Click Next.
Click Finish.
Step3. Wait for an IIS crash. Confirm the minidump file - it should have
first chance exception or second chance exception in the filename.
Step4. Click on the rule and select Deactivate after you have a good crash
dump. This will allow IIS to run in regular mode without having the
debugger attached.

Please follow the steps to get the crash dump, then you can either send the
dump to me or attempt to analyze it on your side with windbg.

Regards,
Jialiang Ge
Microsoft Online Community Support

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