On Tue, Mar 6, 2012 at 10:47, Randy Dunlap <rdunlap@xenotime.net> wrote:

Hi,

My Toshiba Portege (Intel Core i5) hangs every few days.
Sometimes I can see no log messages/reasons for it.
Sometimes there are messages about X receiving potentially
fatal signals.

Today's hang appears to have some useful info (maybe).

Mar 6 09:01:45 dragon kernel: [137308.704424] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 6 09:01:45 dragon kernel: [137308.704552] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
Mar 6 09:01:45 dragon kernel: [137308.718950] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 16513584 at 16513581, next 16513585)
Mar 6 09:02:13 dragon kernel: [137336.754647] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
Mar 6 09:02:13 dragon kernel: [137336.754698] [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 16517081 at 16517078, next 16517082)

This error state file is in debugfs, usually in /sys/kernel/debug/dri/0/ directory.

Could you please report it into our bugzilla, attaching the files and information mentioned at http://intellinuxgraphics.org/how_to_report_bug.html please?