w3wp process high CPU .NET

Hi, everyone, we have a special case with our .NET application, IIS
comes to 100% CPU with w3wp process. Here our scenario
Windows 2003 Server, .NET Framework 1.1.

This happens ocasionally, about every week, but when it happens the IIS
needs to be restarted.We have a CMS application developed in .NET that
works like the front end of our site www.endi.com. It works great for
one week, but then suddenly the IIS goes to 100% cpu, we debug our
application, but with no success. Then other week works great again,
and yesterday it happened again.

The last time it happened, we got a log and a dump file. Here is the
log, Log

Any clue, it will be appreciated.

Thanks a lot.
Marco Flores.

Tx a lot Pat, I found the bug, and its what you said, we were not
validating some statements that make s string concatenation.
Regards

memelo wrote:
> Hi, everyone, we have a special case with our .NET application, IIS
> comes to 100% CPU with w3wp process. Here our scenario
> Windows 2003 Server, .NET Framework 1.1.
>
> This happens ocasionally, about every week, but when it happens the IIS
> needs to be restarted.We have a CMS application developed in .NET that
> works like the front end of our site www.endi.com. It works great for
> one week, but then suddenly the IIS goes to 100% cpu, we debug our
> application, but with no success. Then other week works great again,
> and yesterday it happened again.
>
> The last time it happened, we got a log and a dump file. Here is the
> log, Log
>
> Any clue, it will be appreciated.
>
> Thanks a lot.
> Marco Flores.