linux-kernel - [drm/i915] 5ba60fc3d71: dmesg.WARNING:at_drivers/gpu/drm/i915/intel_pm.c:sandybridge_pcode_write

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Message-ID: <20141011052935.GE21803@wfg-t540p.sh.intel.com>
Date:	Sat, 11 Oct 2014 13:29:35 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Ville Syrjälä <ville.syrjala@...ux.intel.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	Intel Graphics Development <intel-gfx@...ts.freedesktop.org>
Subject: [drm/i915] 5ba60fc3d71:
 dmesg.WARNING:at_drivers/gpu/drm/i915/intel_pm.c:sandybridge_pcode_write_i915()

FYI, we noticed the below changes on

git://gitorious.org/vsyrjala/linux cdclk_3
commit 5ba60fc3d719988a404d35a3e46f109bea643fef ("drm/i915: BDW cdclk change support")


testbox/testcase/testparams: lkp-bdw01/boot/1

8df76759beb2354a  5ba60fc3d719988a404d35a3e4  
----------------  --------------------------  
       fail:runs  %reproduction    fail:runs
           |             |             |    
           :1           20%           1:5     dmesg.WARNING:at_drivers/gpu/drm/i915/intel_pm.c:sandybridge_pcode_write_i915()
          3:10         -30%            :5     dmesg.WARNING:at_drivers/gpu/drm/i915/i915_irq.c:gen8_irq_power_well_post_enable_i915()

To reproduce:

	apt-get install ruby ruby-oj
	git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
	cd lkp-tests
	bin/setup-local job.yaml # the job file attached in this email
	bin/run-local   job.yaml

Attached 2 dmesg outputs for commit 5ba60fc3d719988a404d35a3e4.

Thanks,
Fengguang

View attachment "job.yaml" of type "text/plain" (1139 bytes)

View attachment "dmesg-0" of type "text/plain" (142295 bytes)

View attachment "dmesg-1" of type "text/plain" (133400 bytes)