Re: IIS/SQL Crashing

From: Desmond Lam (deslam_at_online.microsoft.com)
Date: 01/29/04 

Date: Thu, 29 Jan 2004 17:01:00 +0800

Hi Robert,

Based on event log, there is probably a fatal error in your application that
cause the worker process to crashed. There are many possible reasons to the
cause of an application crash such as memory access violation or stack
corruption. Sometimes it may be due to some miscompiled dll or third-party
drivers that causes the problem. The best way to determine is to perform
user-mode debug of the worker process memory space at the time of the crash.

You may go to Microsoft website at
http://www.microsoft.com/whdc/ddk/debugging/default.mspx to download the
tool and there are also instructions available on how to go about setting up
the debugger and attaching it to the IIS process to capture the dump when it
crashes.

However analysing the dump file requires quite a bit of knowledge on
programming, assembly language, and OS internals, it can be pretty
challenging to layman.

Here are some link that you may find helpful:

HOW TO: Use ADPlus to Troubleshoot "Hangs" and "Crashes"
http://support.microsoft.com/?id=286350

http://www.microsoft.com/whdc/ddk/debugging/DBG-KB.mspx

Have fun!
Desmond

"Robert Abela" <robert@gfi.com> wrote in message
news:%23lJ9PKb5DHA.2740@TK2MSFTNGP09.phx.gbl...
> Hi we run a website based on htm/html pages, asp scripts and an SQL
backend.
> Before we had a problem and were having a lot of events in the sys event
log
> and after some time, if i try to access the website i would have an error
> "Service Unavailable"
>
> Then i turned the web server to run in "Isolation Mode" though everysome
> time it seems that the IIS stop communicating with the SQL server. In
fact
> the whole pages load up but the SQL driven data won't show up :\
>
> The only even we are finding on the web server is this:
>
> Event Type: Warning
> Event Source: W3SVC-WP
> Event Category: None
> Event ID: 2237
> Date: 1/28/2004
> Time: 3:30:03 PM
> User: N/A
> Computer: S42910
> Description:
> Out of process application '/LM/W3SVC/179685904/Root' terminated
> unexpectedly.
>
> For more information, see Help and Support Center at
> http://go.microsoft.com/fwlink/events.asp.
>
> Also i found other events that say the the IIS services has terminated
> unexpetadly and they are being restarted automatically. Any help please
> would be really appriciated cause i am getting mad.
>
> Regards,
> Robert Abela
>
>

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