[Bug 83759] [BSW regression]igt/kms_flip subcases cause "WARNING: CPU: 0 PID: 3785 at drivers/gpu/drm/i915/intel_display.c:3486 intel_crtc_wait_for_pending_flips+0xdd/0x197 [i915]()"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83759

Guo Jinxian <jinxianx.guo at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED

--- Comment #12 from Guo Jinxian <jinxianx.guo at intel.com> ---
(In reply to Ville Syrjala from comment #11)
> (In reply to Guo Jinxian from comment #9)
> > (In reply to Daniel Vetter from comment #8)
> > > Ah, bad mixup on my side. This should be address with
> > > 
> > > commit cb4975b7c365f6d8e6d17cf4a24d846b3d27e6b7
> > > Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > > Date:   Tue May 27 21:33:09 2014 +0300
> > > 
> > >     drm/i915: Ignore SURFLIVE and flip counter when the GPU gets reset
> > > 
> > > from -fixes. Please retest.
> > 
> > The dmesg warning still able to reproduce on latest
> > -fixes(cb4975b7c365f6d8e6d17cf4a24d846b3d27e6b7).
> 
> A lot more interesting would be knowing whether it still happens on nightly.

The failure still happens on latest
-nightly(904b8529cd69f98b98d33b533a211003f99fb1cd)

root at x-bsw03:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# ./kms_flip
--run-subtest bcs-flip-vs-panning
IGT-Version: 1.8-gd807891 (x86_64) (Linux:
3.18.0-rc6_drm-intel-nightly_904b85_20141127+ x86_64)
Using monotonic timestamps
Beginning bcs-flip-vs-panning on crtc 8, connector 29
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
..
bcs-flip-vs-panning on crtc 8, connector 29: PASSED

Beginning bcs-flip-vs-panning on crtc 13, connector 29
  1920x1080 60 1920 1966 1996 2080 1080 1082 1086 1112 0xa 0x48 138780
..
bcs-flip-vs-panning on crtc 13, connector 29: PASSED

Subtest bcs-flip-vs-panning: SUCCESS (127.851s)
root at x-bsw03:/GFX/Test/Intel_gpu_tools/intel-gpu-tools/tests# dmesg -r|egrep
"<[1-4]>"|grep drm
<4>[  121.367165] WARNING: CPU: 3 PID: 4326 at
drivers/gpu/drm/i915/intel_display.c:3619
intel_crtc_wait_for_pending_flips+0xe7/0x1a8 [i915]()
<4>[  121.367172] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm serio_raw
pcspkr r8169 i2c_i801 lpc_ich mfd_core snd_timer option snd soundcore usb_wwan
usbserial battery ac acpi_cpufreq i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea
<4>[  121.367220] CPU: 3 PID: 4326 Comm: kms_flip Not tainted
3.18.0-rc6_drm-intel-nightly_904b85_20141127+ #1990
<4>[  121.367428]  [<ffffffffa0017f54>] ?
drm_mode_set_config_internal+0x4e/0xd2 [drm]
<4>[  121.367446]  [<ffffffffa001bbcd>] ? drm_mode_setcrtc+0x3e9/0x48e [drm]
<4>[  121.367461]  [<ffffffffa0010738>] ? drm_ioctl+0x279/0x3bc [drm]
<4>[  121.367487]  [<ffffffffa001b7e4>] ? drm_mode_setplane+0x1e4/0x1e4 [drm]
<4>[  121.367560] WARNING: CPU: 3 PID: 4326 at
drivers/gpu/drm/i915/intel_display.c:3624
intel_crtc_wait_for_pending_flips+0x121/0x1a8 [i915]()
<4>[  121.367566] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm serio_raw
pcspkr r8169 i2c_i801 lpc_ich mfd_core snd_timer option snd soundcore usb_wwan
usbserial battery ac acpi_cpufreq i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea
<4>[  121.367608] CPU: 3 PID: 4326 Comm: kms_flip Tainted: G        W     
3.18.0-rc6_drm-intel-nightly_904b85_20141127+ #1990
<4>[  121.367798]  [<ffffffffa0017f54>] ?
drm_mode_set_config_internal+0x4e/0xd2 [drm]
<4>[  121.367815]  [<ffffffffa001bbcd>] ? drm_mode_setcrtc+0x3e9/0x48e [drm]
<4>[  121.367830]  [<ffffffffa0010738>] ? drm_ioctl+0x279/0x3bc [drm]
<4>[  121.367855]  [<ffffffffa001b7e4>] ? drm_mode_setplane+0x1e4/0x1e4 [drm]
<4>[  184.346159] WARNING: CPU: 2 PID: 4326 at
drivers/gpu/drm/i915/intel_display.c:3619
intel_crtc_wait_for_pending_flips+0xe7/0x1a8 [i915]()
<4>[  184.346166] Modules linked in: dm_mod snd_hda_codec_hdmi
snd_hda_codec_realtek snd_hda_codec_generic iTCO_wdt iTCO_vendor_support
snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm serio_raw
pcspkr r8169 i2c_i801 lpc_ich mfd_core snd_timer option snd soundcore usb_wwan
usbserial battery ac acpi_cpufreq i915 button video drm_kms_helper drm
cfbfillrect cfbimgblt cfbcopyarea
<4>[  184.346214] CPU: 2 PID: 4326 Comm: kms_flip Tainted: G        W     
3.18.0-rc6_drm-intel-nightly_904b85_20141127+ #1990
<4>[  184.346423]  [<ffffffffa0017f54>] ?
drm_mode_set_config_internal+0x4e/0xd2 [drm]
<4>[  184.346441]  [<ffffffffa001bbcd>] ? drm_mode_setcrtc+0x3e9/0x48e [drm]
<4>[  184.346456]  [<ffffffffa0010738>] ? drm_ioctl+0x279/0x3bc [drm]
<4>[  184.346482]  [<ffffffffa001b7e4>] ? drm_mode_setplane+0x1e4/0x1e4 [drm]

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