Quick update, I'm on mesa 11.0.4 now and the issue is still present but it manifests itself differently: when I hit the issue I can still see the error messages being dumped into the kernel log but the application isn't seg-faulting anymore. I'm not sure if this is good or bad; it does help with my use-case as things keep running afterwards but it might make this bug harder to track.
Quick update, I'm on mesa 11.0.4 now and the issue is still present but it manifests itself differently: when I hit the issue I can still see the error messages being dumped into the kernel log but the application isn't seg-faulting anymore. I'm not sure if this is good or bad; it does help with my use-case as things keep running afterwards but it might make this bug harder to track.