Debugging tools/approach for GPU hangs?

Chris Jones chris.jones at
Fri Sep 4 10:17:02 BST 2009


Matt Zimmerman wrote:
>    Bryce (and Jesse Barnes at Intel) mentioned that the kernel is now
>    supposed to log an error message when this happens, but I've never seen
>    evidence of that happening.

I had an X wedge on resuming my laptop the other day and after SSHing in
I found this in dmesg:

(attached to

Is that the thing you're referring to? Having that kernel event trigger
an automatic dump into /var/crash seems like it would be a massive win
(cf my essentially useless bug report in the above case)

Chris Jones
  cmsj at

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