Based on what Vlk said, I'm not sure a clean install of avast would have an effect, but it certainly won't hurt, unless you are suggesting a clean install of comodo.
Oops, yes I did indeed mean a clean Comodo install.
What surprises me is that there are quite a few forum members also using comodo firewall and no other reports of this issue. So it may only occur if a number of circumstances are present.
You could contact comodo, they have in the past been responsive and let them know about the problem and offer them the dump report. Assuming there is no conflict of interest with it being an avast generated memory dump.
True, from both this and the Comodo forum I've seen that it's an extremely popular combination of AV and firewall. I'll raise a ticket with Comodo and see what they need, hopefully I won't have to upload
another 200M zipped dumpfile! You're right though, it could well be a very specific set of circumstances almost impossible to replicate anywhere else.
Slightly OT, do you by any chance do anything apart from live on this board David?! From your post count and apparent usual speed of response I'd be tempted to say not