Bug 59548

Summary: [HSW regression]dmesg with <4> error while booting system
Product: DRI Reporter: lu hua <huax.lu>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED FIXED QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: yangweix.shui
Version: unspecified   
Hardware: All   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
error dmesg
none
dmesg_all none

Description lu hua 2013-01-18 08:41:26 UTC 
Created attachment 73237 [details]
error dmesg

System Environment:
--------------------------
Arch:       x86_64
Platform:   Haswell
Kernel:    (drm-intel-next-queued)30335dc87a460e36a3b630e329bdcf8537f67eff

Bug detailed description:
-------------------------
It happens on haswell with -queued kernel.
The last known good commit: 29b46977df92852ea9e153361297b8f8c419da92
The last known bad commit: 30335dc87a460e36a3b630e329bdcf8537f67eff

<4>[    4.013321] Modules linked in: i915(+) video button i2c_algo_bit drm_kms_helper drm i2c_core dm_mirror dm_region_hash dm_log dm_mod
<4>[    4.013386]  [<ffffffffa003cdaf>] ? drm_get_pci_dev+0x14d/0x24f [drm]

Reproduce steps:
----------------
1. dmesg -r | egrep "<[1-6]>" |grep drm
Comment 1 lu hua 2013-01-18 08:42:17 UTC 
Created attachment 73238 [details]
dmesg_all
Comment 2 lu hua 2013-01-18 08:50:11 UTC 
It doesn't happen on -fixes kernel.
Comment 3 Daniel Vetter 2013-01-24 09:51:00 UTC 
Fixed in dinq with

commit c00db2463978ffab59d731773aae1a4f4e11d78c
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Tue Jan 22 15:33:27 2013 +0100

    drm/i915: fixup sbi_read/write locking
Comment 4 lu hua 2013-01-28 07:34:16 UTC 
Test on (drm-intel-next-queued)da2d496f0e8da00a9b2211dad4f78e416a3153ba.
Fixed.
Comment 5 Elizabeth 2017-10-06 14:47:09 UTC 
Closing old verified.

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