Bug 89052 - [SKL] “testdisplay –d 32” lead kernel BUG at drivers/gpu/drm/i915/intel_display.c:2766!
Summary: [SKL] “testdisplay –d 32” lead kernel BUG at drivers/gpu/drm/i915/intel_displ...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-02-10 05:31 UTC by Jeff Zheng
Modified: 2017-10-06 14:31 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
dmesg log runnig testdisplay -d 32 (123.66 KB, text/plain)
2015-02-10 05:31 UTC, Jeff Zheng 		no flags Details
drm/i915/skl: handle all pixel formats in skylake_update_primary_plane (1.37 KB, patch)
2015-02-10 08:50 UTC, Jani Nikula 		no flags Details | Splinter Review
View All

Description Jeff Zheng 2015-02-10 05:31:48 UTC 
Created attachment 113294 [details]
dmesg log runnig testdisplay -d 32

==System Environment==
--------------------------
BIOS: V68

Regression: No. First test on this platform

Non-working platforms: SKL

==kernel==
--------------------------
-nightly: 2015_02_09 commit /b4442ee4e150506cebeee72249efc566c5f14bbe(fails)

==Bug detailed description==
-----------------------------
Running “testdisplay –d 32” lead kernel BUG at drivers/gpu/drm/i915/intel_display.c:2766!

testdisplay process is unable to be killed after that.


==Reproduce steps==
---------------------------- 
1. Run "testdisplay -d 32"
2. Check dmesg
Comment 1 Jani Nikula 2015-02-10 08:50:28 UTC 
Created attachment 113304 [details] [review]
drm/i915/skl: handle all pixel formats in skylake_update_primary_plane

Please try this patch.
Comment 2 Jeff Zheng 2015-02-11 01:23:22 UTC 
Applying this patch above next-queue commit c157e8637b6c032cc474f0ac1039d3371777c804, this bug is fixed. "testdisplay -d 32" runs fine.
Comment 3 Jani Nikula 2015-02-24 08:52:00 UTC 
commit f75fb42a6164a4c7f5bb6cbaae65555db89904a8
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Tue Feb 10 13:15:49 2015 +0200

    drm/i915/skl: handle all pixel formats in skylake_update_primary_plane()
Comment 4 Jeff Zheng 2015-02-27 03:30:46 UTC 
Tried on commit 376ebc108c774b357e211b5fc0aab558fc89ede9 and this issue has been fixed.
Comment 5 Elizabeth 2017-10-06 14:31:27 UTC 
Closing old verified.

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