Created attachment 120927 [details]
Radeon blocked locks

Since X seemed blocked on an ioctl, I managed to get a list of all the blocked
locks, and found most of my taken locks were from GUI related programs who
would be doing GL things, and they are all blocked on a lock, including one
that is currently trying to reset my GPU.

I'm guessing there is a lock that is being grabbed twice, once when userspace
makes an ioctl, and again during the reset.  I'll keep digging.

Also, I think this may be a duplicate of #90217, as both involve source games. 
I'll leave this open for now, in case tf2 has a different trigger.