asp.net application requests stuck in "SendResponse" state

Im troubleshooting some application performance issues and have noticed that when i look in IIS 7 (under worker processes), the long running requests are stuck in "SendResponse" in the pipeline.

Some of these requests can be in that state for 200+ seconds.

I'm not sure if this questions is best asked here or in serverfault, but figured I would ask here since I'm guessing its an application issue instead of a server issue.

Anyways, has anyone seen this before, and know what might be causing it? I'm running asp.net 3.5 32 bit on a 64 bit machine in classic mode.

Thanks in advance开发者_如何转开发.