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<body><span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BSW Regression]igt/kms_flip/vblank-vs-modeset-rpm and pm_rpm cause reg read while suspended"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83760">bug 83760</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Keywords</td>
<td>bisect_pending
</td>
<td>
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>ASSIGNED
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BSW Regression]igt/kms_flip/vblank-vs-modeset-rpm and pm_rpm cause reg read while suspended"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83760#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [BSW Regression]igt/kms_flip/vblank-vs-modeset-rpm and pm_rpm cause reg read while suspended"
href="https://bugs.freedesktop.org/show_bug.cgi?id=83760">bug 83760</a>
from <span class="vcard"><a class="email" href="mailto:jinxianx.guo@intel.com" title="Guo Jinxian <jinxianx.guo@intel.com>"> <span class="fn">Guo Jinxian</span></a>
</span></b>
<pre>The failure unable to reproduce on latest
-nightly(b921a5e434f541c6d96378838df47b4259cc3489). Instead another failures
(<a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW]igt/kms_render causes *ERROR* pipe A underrun"
href="show_bug.cgi?id=85908">bug 85908</a> <a class="bz_bug_link
bz_status_NEW "
title="NEW - [BSW]igt/pm_rpm/gem-execbuf-stress causes "WARNING: CPU: 3 PID: 20 at drivers/gpu/drm/i915/intel_pm.c:3700 gen8_enable_rps_interrupts+0x2b/0x5c [i915]()""
href="show_bug.cgi?id=84359">bug 84359</a>) are appeared.
[root@x-bsw01 tests]# ./kms_flip --run-subtest vblank-vs-modeset-rpm
IGT-Version: 1.8-gc049c39 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ x86_64)
Using monotonic timestamps
Beginning vblank-vs-modeset-rpm on crtc 8, connector 29
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
....
vblank-vs-modeset-rpm on crtc 8, connector 29: PASSED
Beginning vblank-vs-modeset-rpm on crtc 13, connector 29
1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
...
vblank-vs-modeset-rpm on crtc 13, connector 29: PASSED
Subtest vblank-vs-modeset-rpm: SUCCESS (21.843s)
[root@x-bsw01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<3>[12765.691057] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[12765.691095] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun
<3>[12769.409978] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe A underrun
<3>[12773.207200] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe A underrun
<3>[12775.106233] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe A underrun
<3>[12778.618559] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun
<3>[12782.169679] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[12784.169642] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[12790.325305] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[12790.325343] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun
[root@x-bsw01 tests]# ./pm_rpm --run-subtest gem-execbuf
IGT-Version: 1.8-gc049c39 (x86_64) (Linux:
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ x86_64)
Runtime PM support: 1
PC8 residency support: 0
Subtest gem-execbuf: SUCCESS (6.547s)
[root@x-bsw01 tests]# dmesg -r|egrep "<[1-4]>"|grep drm
<3>[13037.023080] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe A underrun
<3>[13040.240182] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe A underrun
<4>[13040.344351] WARNING: CPU: 0 PID: 14501 at
drivers/gpu/drm/i915/intel_pm.c:4671 gen8_enable_rps_interrupts+0x34/0x65
[i915]()
<4>[13040.344362] dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic pcspkr serio_raw i2c_i801 lpc_ich
mfd_core snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm
snd_timer snd soundcore battery ac acpi_cpufreq i915 button video
drm_kms_helper drm cfbfillrect cfbimgblt cfbcopyarea option usb_wwan usbserial
<4>[13040.344408] CPU: 0 PID: 14501 Comm: kworker/0:2 Not tainted
3.18.0-rc3_drm-intel-nightly_b921a5_20141109+ #1342
<3>[13045.328641] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR*
pipe B underrun
<3>[13045.328679] [drm:valleyview_pipestat_irq_handler [i915]] *ERROR* CPU pipe
B FIFO underrun</pre>
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