[K12OSN] drm i915_hangcheck_elapsed on client

Roland Roberts roland at astrofoto.org
Wed Sep 7 15:27:13 UTC 2011

I've had my client freeze up, temporarily, a number of times. Not every 
day, not with high-frequency, but more than once a week.  Today, after 
it recovered, I launched a local xterm and found this in /var/log/messages

Sep  7 11:05:08 client-192 kernel: [drm:i915_hangcheck_elapsed] *ERROR* 
Hangcheck timer elapsed... GPU idle, missed IRQ.

The previous log message is from the previous evening, the next if from 
me lauching the local xterm.

The client is a Thinkpad 420s with a Core i5 and the integrated Intel 
GPU. Since that's a new addition for RHEL/SL 6.1, it's probably not 
client related, but I thought I'd bounce it around here first.


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Roland B. Roberts, PhD                             RL Enterprises
roland at rlenter.com                            6818 Madeline Court
roland at astrofoto.org                           Brooklyn, NY 11220

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