0) On a laptop I use I've ran into i915 kernel errors at resume. I see these only every now and then: not on all resumes. The pattern of these errors (and preceding messages) is basically always like this:
<6>[14673.762529] [drm] Changing LVDS panel from (+hsync, +vsync) to (-hsync, -vsync) <6>[14673.824599] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state <3>[14673.825071] render error detected, EIR: 0x00000010 <3>[14673.825071] page table error <3>[14673.825071] PGTBL_ER: 0x00000100 <3>[14673.825071] [drm:i915_report_and_clear_eir] *ERROR* EIR stuck: 0x00000010, masking
1) I've only noticed this because: - I tend to check for KERN_ERR messages in the logs; and - the errors (ie, the messages with a <3> prefix) look scary when text mode briefly flashes by at suspend and at resume. Otherwise the display on this machine seems to work just fine.
2) The logs on this machine only have information for v3.3 based kernels. I haven't checked whether earlier kernels also do this. Nor have I checked whether this is fixed in the current v3.4 release candidates.
3) Some similar reports, but for messages printed at boot: http://lists.freedesktop.org/archives/dri-devel/2011-January/007302.html http://lists.freedesktop.org/archives/dri-devel/2012-January/018158.html
4) What can I do to (help) make these messages go away?
Paul Bolle
On Thu, 2012-04-19 at 11:04 +0200, Paul Bolle wrote:
<6>[14673.824599] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
I triggered this issue once again in the session I run currently: $ cat /sys/kernel/debug/dri/0/i915_error_state | wc -c 689681
What part of that almost 700K file could be of interest?
Paul Bolle
On Sat, Apr 21, 2012 at 02:25:55PM +0200, Paul Bolle wrote:
On Thu, 2012-04-19 at 11:04 +0200, Paul Bolle wrote:
<6>[14673.824599] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
I triggered this issue once again in the session I run currently: $ cat /sys/kernel/debug/dri/0/i915_error_state | wc -c 689681
What part of that almost 700K file could be of interest?
All of it. Please file a bug report with the error state attach (the entire thing), complete dmesg showing when the problem happens and a short description of the issue at bugs.freedesktop.org against DRI, component DRM/Intel.
Thanks, daniel
On Sat, 2012-04-21 at 14:54 +0200, Daniel Vetter wrote:
On Sat, Apr 21, 2012 at 02:25:55PM +0200, Paul Bolle wrote:
What part of that almost 700K file could be of interest?
All of it. Please file a bug report with the error state attach (the entire thing), complete dmesg showing when the problem happens and a short description of the issue at bugs.freedesktop.org against DRI, component DRM/Intel.
OK, I'll do that then. Would you know whether bugs.freedesktop.org requires me to compress files of that size?
Paul Bollw
On Sat, Apr 21, 2012 at 02:58:39PM +0200, Paul Bolle wrote:
On Sat, 2012-04-21 at 14:54 +0200, Daniel Vetter wrote:
On Sat, Apr 21, 2012 at 02:25:55PM +0200, Paul Bolle wrote:
What part of that almost 700K file could be of interest?
All of it. Please file a bug report with the error state attach (the entire thing), complete dmesg showing when the problem happens and a short description of the issue at bugs.freedesktop.org against DRI, component DRM/Intel.
OK, I'll do that then. Would you know whether bugs.freedesktop.org requires me to compress files of that size?
Please don't if possible, it's a hassle to first unzip it. And usually it works without issues. -Daniel
On Sat, 2012-04-21 at 14:54 +0200, Daniel Vetter wrote:
Please file a bug report with the error state attach (the entire thing), complete dmesg showing when the problem happens and a short description of the issue at bugs.freedesktop.org against DRI, component DRM/Intel.
See https://bugs.freedesktop.org/show_bug.cgi?id=49041 for that report.
Paul Bolle
dri-devel@lists.freedesktop.org
-
Daniel Vetter -
Paul Bolle