Bug 103989 - [BAT][ELK only] igt@* - dmesg-warn - *ERROR* CPU pipe A FIFO underrun leading to incomplete.
Summary: [BAT][ELK only] igt@* - dmesg-warn - *ERROR* CPU pipe A FIFO underrun leading...
Status: REOPENED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: high normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks: 105980
  Show dependency treegraph
 
Reported: 2017-11-30 06:47 UTC by Marta Löfstedt
Modified: 2019-05-23 15:06 UTC (History)
2 users (show)

See Also:
i915 platform: GM45, HSW
i915 features: display/Other


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Description Marta Löfstedt 2017-11-30 06:47:41 UTC
This is the first occurrence:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3409/fi-elk-e7500/igt@kms_flip@basic-plain-flip.html

then these are on latest results from cibuglog:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@gem_exec_suspend@basic-s4-devices.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_cursor_legacy@basic-flip-after-cursor-legacy.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@debugfs_test@read_all_entries.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_busy@basic-flip-b.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_cursor_legacy@basic-flip-after-cursor-varying-size.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_cursor_legacy@basic-flip-before-cursor-varying-size.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_flip@basic-plain-flip.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_force_connector_basic@force-connector-state.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_cursor_legacy@basic-flip-before-cursor-legacy.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_force_connector_basic@force-load-detect.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_flip@basic-flip-vs-wf_vblank.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_flip@basic-flip-vs-dpms.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_flip@basic-flip-vs-modeset.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@gem_exec_suspend@basic-s3.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_cursor_legacy@basic-busy-flip-before-cursor-legacy.html
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3412/fi-elk-e7500/igt@kms_busy@basic-flip-a.html

[  213.977896] [drm:intel_set_cpu_fifo_underrun_reporting [i915]] *ERROR* pipe A underrun
[  219.448527] usb usb3: root hub lost power or was reset
[  219.448583] usb usb4: root hub lost power or was reset
[  219.448636] usb usb5: root hub lost power or was reset
[  219.448701] usb usb1: root hub lost power or was reset
[  219.449222] usb usb6: root hub lost power or was reset
[  219.449267] usb usb7: root hub lost power or was reset
[  219.449311] usb usb8: root hub lost power or was reset
[  219.449358] usb usb2: root hub lost power or was reset
[  219.464051] sd 0:0:0:0: [sda] Starting disk
[  219.477715] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
[  219.477920] [drm:pipe_config_err [i915]] *ERROR* mismatch in has_audio (expected yes, found no)
[  219.477923] ------------[ cut here ]------------
[  219.477925] pipe state doesn't match!
[  219.477987] WARNING: CPU: 0 PID: 2937 at drivers/gpu/drm/i915/intel_display.c:11596 intel_atomic_commit_tail+0xc12/0xd10 [i915]
[  219.477989] Modules linked in: i915 snd_hda_codec_realtek snd_hda_codec_generic coretemp snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core e1000e snd_pcm mei_me lpc_ich ptp mei pps_core prime_numbers
[  219.478020] CPU: 0 PID: 2937 Comm: kworker/u8:24 Tainted: G     U  W        4.15.0-rc1-CI-CI_DRM_3412+ #1
[  219.478022] Hardware name: Hewlett-Packard HP Compaq 8000 Elite CMT PC/3647h, BIOS 786G7 v01.02 10/22/2009
[  219.478027] Workqueue: events_unbound async_run_entry_fn
[  219.478030] task: ffff880106f82880 task.stack: ffffc900005c0000
[  219.478063] RIP: 0010:intel_atomic_commit_tail+0xc12/0xd10 [i915]
[  219.478065] RSP: 0018:ffffc900005c3b78 EFLAGS: 00010296
[  219.478068] RAX: 0000000000000019 RBX: ffff880107ec07c0 RCX: 0000000000000006
[  219.478070] RDX: 0000000000001531 RSI: ffffffff81d05d01 RDI: ffffffff81cb7126
[  219.478072] RBP: ffff88010783d3d8 R08: 0000000000000000 R09: 0000000000000001
[  219.478074] R10: ffff880114a84d68 R11: 0000000000000000 R12: ffff880114a84a88
[  219.478076] R13: ffff880114a85d28 R14: 0000000000000000 R15: ffff880107ec0000
[  219.478079] FS:  0000000000000000(0000) GS:ffff88011bc00000(0000) knlGS:0000000000000000
[  219.478081] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  219.478083] CR2: 00007f0216922080 CR3: 0000000001e10000 CR4: 00000000000406f0
[  219.478085] Call Trace:
[  219.478127]  intel_atomic_commit+0x22a/0x2e0 [i915]
[  219.478134]  ? pci_pm_suspend_noirq+0x190/0x190
[  219.478140]  drm_atomic_helper_commit_duplicated_state+0xd4/0x100
[  219.478174]  __intel_display_resume+0x76/0xc0 [i915]
[  219.478208]  intel_display_resume+0xbc/0xf0 [i915]
[  219.478242]  i915_pm_restore+0xc4/0x140 [i915]
[  219.478248]  dpm_run_callback+0x5f/0x310
[  219.478253]  device_resume+0xa3/0x1b0
[  219.478259]  ? dpm_watchdog_set+0x60/0x60
[  219.478266]  async_resume+0x14/0x40
[  219.478270]  async_run_entry_fn+0x2e/0x160
[  219.478275]  process_one_work+0x227/0x650
[  219.478284]  worker_thread+0x48/0x3a0
[  219.478292]  kthread+0x173/0x1b0
[  219.478295]  ? process_one_work+0x650/0x650
[  219.478297]  ? _kthread_create_on_node+0x30/0x30
[  219.478303]  ret_from_fork+0x24/0x30
[  219.478316] Code: ff 0f b6 d0 0f b6 f1 48 c7 c7 68 64 2b a0 e8 46 af e7 e0 0f ff 41 0f b6 4d 09 e9 de f9 ff ff 48 c7 c7 9c 48 29 a0 e8 2e af e7 e0 <0f> ff e9 90 fa ff ff 80 3d 71 d1 13 00 00 0f b6 ca 0f 85 b3 00 
[  219.478419] ---[ end trace 25a5dc15b6f8ad45 ]---
[  220.167384] Setting dangerous option reset - tainting kernel
Comment 1 Marta Löfstedt 2017-11-30 06:49:32 UTC
above is followed by this softdog:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3409/fi-elk-e7500/igt@kms_frontbuffer_tracking@basic.html
Comment 2 Marta Löfstedt 2017-11-30 06:51:30 UTC
From IRC:
"<mupuf> CI_DRM_3411 breaks fi-elk-e7500
<mupuf> *ERROR* mismatch in has_audio (expected yes, found no)
<mupuf> vsyrjala: is it from you?
<mupuf> does not look like it
<vsyrjala> caused by hdmi->dp display change on elk
* siro__1 (~siro__@ip-95-222-73-162.hsi15.unitymediagroup.de) has joined
<vsyrjala> fixes already on the list though ;)
<mupuf> marta_: Fun for you tomorrow ^
<mupuf> vsyrjala: thx :)
<vsyrjala> https://patchwork.freedesktop.org/series/34638/"
Comment 3 Marta Löfstedt 2017-11-30 11:54:06 UTC
Note this issue started when DP -> HDMI cable was replaced with DP -> DP.
Comment 4 Ville Syrjala 2017-12-01 15:14:00 UTC
commit 20ff39fa4312dfaee8d1314a208e6a5a3ee51cbc
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Nov 29 18:43:01 2017 +0200

    drm/i915: Disable DP audio for g4x

fixes the has_audio issue. If the underruns persist we need a new bug for them.
Comment 5 Marta Löfstedt 2017-12-04 08:59:08 UTC
(In reply to Ville Syrjala from comment #4)
> commit 20ff39fa4312dfaee8d1314a208e6a5a3ee51cbc
> Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Date:   Wed Nov 29 18:43:01 2017 +0200
> 
>     drm/i915: Disable DP audio for g4x
> 
> fixes the has_audio issue. If the underruns persist we need a new bug for
> them.

Audio issue is wrong analyze from Martin, the issue has always started with FIFO underruns.

The pattern with FIFO underruns and then softdog on:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3446/fi-elk-e7500/igt@kms_frontbuffer_tracking@basic.html
still persist. Please read the information on what the bug is actually about before stating that the issue is resolved.
Comment 6 Marta Löfstedt 2017-12-04 12:08:00 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3411/fi-elk-e7500/igt@debugfs_test@read_all_entries.html

is actually the first occurrence.
Comment 8 Marta Löfstedt 2018-02-01 14:08:55 UTC
NOTE, The fi-elk-e7500 Hardware was changed: DP monitor back to DP-HDMI dongle and monitor. Now the issue can't be reproduced. 

From IRC:
<marta_malmoe> danvet, tsa, I don't know I think there is something wrong with the igt@debugfs_test@read_all_entries where the elk thing starts. Also the SNB issue I linked above flip-flops incomplete on that test.
<danvet> would indicate a nasty bug somewhere in one of the debugfs files we're using
<danvet> might need to improve the tracing of the testcase to better understand where it fails
<ickle> it's the always the crc debugfs iirc
<danvet> the old or new ones?
<danvet> and I thought krisman had some patches for those
<danvet> or mlankhorst
<ickle> were not the old ones removed? I thought mlankhost already excised them
Comment 9 Francesco Balestrieri 2018-06-12 12:39:51 UTC
Last occurred 2 days, 20 hours ago according to cibuglogger
Comment 10 Daniel Vetter 2018-07-04 19:30:00 UTC
Note if bug #105225 is really holding up, then we should remove the flip_done filter from cibuglog for this one here.
Comment 11 CI Bug Log 2019-01-31 14:44:13 UTC
A CI Bug Log filter associated to this bug has been updated:

{- fi-elk-e7500: igt@debugfs_test@read_all_entries - INFO: Timed out: reading sysfs entry -}
{+  fi-hsw-peppy fi-elk-e7500: igt@debugfs_test@read_all_entries - INFO: Timed out: reading sysfs entry +}

New failures caught by the filter:

* https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_202/fi-hsw-peppy/igt@debugfs_test@read_all_entries_display_on.html
Comment 12 CI Bug Log 2019-05-23 15:06:59 UTC
A CI Bug Log filter associated to this bug has been updated:

{- fi-elk-e7500: All tests - *ERROR* CPU pipe A FIFO underrun -}
{+ fi-elk-e7500: All tests - *ERROR* CPU pipe A FIFO underrun +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_288/fi-elk-e7500/igt@kms_cursor_crc@pipe-b-cursor-64x64-sliding.html


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