[Bug 88651] New: [HSW]igt/gem_cs_prefetch sporadically causes *ERROR* Hangcheck timer elapsed... blitter ring idle

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88651

            Bug ID: 88651
           Summary: [HSW]igt/gem_cs_prefetch sporadically causes *ERROR*
                    Hangcheck timer elapsed... blitter ring idle
           Product: DRI
           Version: unspecified
          Hardware: All
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: huax.lu at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 112583
  --> https://bugs.freedesktop.org/attachment.cgi?id=112583&action=edit
dmesg

==System Environment==
--------------------------
Regression: not sure

on-working platforms: HSW

==kernel==
--------------------------
drm-intel-nightly/d6bc7a6a0a7573350e8be8ec54002c20d1dbe1e0
commit d6bc7a6a0a7573350e8be8ec54002c20d1dbe1e0
Author: Daniel Vetter <daniel.vetter at ffwll.ch>
Date:   Tue Jan 20 15:10:59 2015 +0100

    drm-intel-nightly: 2015y-01m-20d-14h-10m-40s UTC integration manifest

==Bug detailed description==
-----------------------------
It sporadically causes <3>[   77.789102] [drm:i915_hangcheck_elapsed [i915]]
*ERROR* Hangcheck timer elapsed... blitter ring idle. fail rate:1/3
igt/gem_cpu_reloc also sporadically causes this error.

output:
IGT-Version: 1.9-ga29f28e (x86_64) (Linux:
3.19.0-rc4_drm-intel-nightly_d6bc7a_20150121+ x86_64)
gem_cs_prefetch: 100%
Test suceeded, cleanup up - this might take a while.

==Reproduce steps==
---------------------------- 
1. ./gem_cs_prefetch

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150121/6f584593/attachment-0001.html>