linux-kernel - [lkp] [drm/i915] 8f8c5663fc: [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle

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Message-ID: <8737vuopon.fsf@yhuang-dev.intel.com>
Date:	Wed, 25 Nov 2015 09:03:52 +0800
From:	kernel test robot <ying.huang@...ux.intel.com>
TO:	Chris Wilson <chris@...is-wilson.co.uk>
CC:	0day robot <fengguang.wu@...el.com>
Subject: [lkp] [drm/i915] 8f8c5663fc: [drm:i915_hangcheck_elapsed [i915]]
 *ERROR* Hangcheck timer elapsed... render ring idle

FYI, we noticed the below changes on

https://github.com/0day-ci/linux Chris-Wilson/drm-i915-Break-busywaiting-for-requests-on-pending-signals/20151115-213544
commit 8f8c5663fcfcf635678a194d9d19dba496ce87a8 ("drm/i915: Limit the busy wait on requests to 2us not 10ms!")

<6>[  614.082484] [drm] GPU HANG: ecode 7:1:0x277fffff, in gem_reset_stats [6671], reason: Ring hung, action: reset
<6>[  614.087816] [drm] Simulated gpu hang, resetting stop_rings
<5>[  614.090737] drm/i915: Resetting chip after gpu hang
<3>[  687.113593] [drm:i915_hangcheck_elapsed [i915]] *ERROR* Hangcheck timer elapsed... render ring idle
<6>[  763.152171] [drm] stuck on render ring
<6>[  763.155314] [drm] GPU HANG: ecode 7:0:0xe77fffff, in gem_reset_stats [9393], reason: Ring hung, action: reset
<6>[  763.160212] [drm] Simulated gpu hang, resetting stop_rings

To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp install job.yaml  # job file is attached in this email
        bin/lkp run     job.yaml

Thanks,
Ying Huang

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