Re: ✗ Fi.CI.BAT: failure for drm/i915: Avoid HPD poll detect triggering a new detect cycle (rev2)

[Imre Deak <imre.deak@intel.com>]

Hi Chris, Lakshmi,

On Mon, Oct 28, 2019 at 10:01:13PM +0000, Patchwork wrote:
> == Series Details ==
> 
> Series: drm/i915: Avoid HPD poll detect triggering a new detect cycle (rev2)
> URL   : https://patchwork.freedesktop.org/series/68644/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_7205 -> Patchwork_15031
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_15031 absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_15031, please notify your bug team to allow them
>   to document this new failure mode, which will reduce false positives in CI.
> 
>   External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/index.html
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_15031:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@i915_selftest@live_blt:
>     - fi-kbl-guc:         [PASS][1] -> [TIMEOUT][2]
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-kbl-guc/igt@i915_selftest@live_blt.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-kbl-guc/igt@i915_selftest@live_blt.html

This and the 2 other ones below seem unrelated. The patch changes the display
detection path only, but there is no detection going on when the bug happens.
For the above one the trace is:

<4>[  754.304899] RIP: 0010:intel_emit_vma_fill_blt+0x139/0x340 [i915]
<4>[  754.304901] Code: c1 e1 10 80 cd 04 80 bb e2 0b 00 00 07 77 a9 89 48 0c 4c 89 10 48 8d 48 18 c7 40 08 00 00 00 00 44 89 40 10 44 89 68 14 eb b1 <c7> 41 04 00 00 00 05 48 8b 45 18 48 8b b8 50 01 00 00 e8 70 2d fb
<4>[  754.304902] RSP: 0018:ffffc900006c7e48 EFLAGS: 00010246
<4>[  754.304904] RAX: ffffc90000576000 RBX: ffff8881d58a0000 RCX: ffffc90000575ffc
<4>[  754.304905] RDX: 0000000000800000 RSI: 0000000000000000 RDI: 000000000001d000
<4>[  754.304906] RBP: ffff88815a2d7480 R08: 00000000ff81d000 R09: 03f0100054300005
<4>[  754.304907] R10: 03f0100054300004 R11: 0000000000000000 R12: ffff88821cbddc00
<4>[  754.304907] R13: 0000000011b89215 R14: ffff888182ef1540 R15: 0000000011b89215
<4>[  754.304909] FS:  0000000000000000(0000) GS:ffff88822ea80000(0000) knlGS:0000000000000000
<4>[  754.304910] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[  754.304911] CR2: ffffc90000576000 CR3: 0000000228de2004 CR4: 00000000003606e0
<4>[  754.304911] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
<4>[  754.304912] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
<3>[  754.304914] BUG: sleeping function called from invalid context at ./include/linux/percpu-rwsem.h:38
<3>[  754.304915] in_atomic(): 0, irqs_disabled(): 1, non_block: 0, pid: 6111, name: igt/blt-8
<4>[  754.304916] INFO: lockdep is turned off.
<4>[  754.304917] irq event stamp: 104082
<4>[  754.304920] hardirqs last  enabled at (104081): [<ffffffff8123f63d>] __slab_alloc.isra.84.constprop.89+0x4d/0x70
<4>[  754.304922] hardirqs last disabled at (104082): [<ffffffff81001c0a>] trace_hardirqs_off_thunk+0x1a/0x20
<4>[  754.304924] softirqs last  enabled at (104078): [<ffffffff81c00385>] __do_softirq+0x385/0x47f
<4>[  754.304926] softirqs last disabled at (104071): [<ffffffff810b7efa>] irq_exit+0xba/0xc0
<4>[  754.304927] CPU: 5 PID: 6111 Comm: igt/blt-8 Tainted: G     UD           5.4.0-rc4-CI-Patchwork_15031+ #1
<4>[  754.304928] Hardware name: System manufacturer System Product Name/Z170M-PLUS, BIOS 3610 03/29/2018
<4>[  754.304929] Call Trace:
<4>[  754.304932]  dump_stack+0x67/0x9b
<4>[  754.304934]  ___might_sleep+0x178/0x260
<4>[  754.304936]  exit_signals+0x2b/0x350
<4>[  754.304938]  do_exit+0xa3/0xd70
<4>[  754.304972]  ? i915_gem_object_fill_blt+0x380/0x380 [i915]
<4>[  754.304974]  ? kthread+0x119/0x130
<4>[  754.304976]  rewind_stack_do_exit+0x17/0x20

Could we open a new ticket for these?

>     - fi-icl-u2:          [PASS][3] -> [TIMEOUT][4]
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-icl-u2/igt@i915_selftest@live_blt.html
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-icl-u2/igt@i915_selftest@live_blt.html
> 
>   * igt@i915_selftest@live_client:
>     - fi-whl-u:           [PASS][5] -> [INCOMPLETE][6]
>    [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-whl-u/igt@i915_selftest@live_client.html
>    [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-whl-u/igt@i915_selftest@live_client.html
> 
>   * igt@runner@aborted:
>     - fi-kbl-guc:         NOTRUN -> [FAIL][7]
>    [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-kbl-guc/igt@runner@aborted.html
> 
>   
> Known issues
> ------------
> 
>   Here are the changes found in Patchwork_15031 that come from known issues:
> 
> ### IGT changes ###
> 
> #### Issues hit ####
> 
>   * igt@gem_exec_reloc@basic-write-read-noreloc:
>     - fi-icl-u3:          [PASS][8] -> [DMESG-WARN][9] ([fdo#107724]) +1 similar issue
>    [8]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-icl-u3/igt@gem_exec_reloc@basic-write-read-noreloc.html
>    [9]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-icl-u3/igt@gem_exec_reloc@basic-write-read-noreloc.html
> 
>   * igt@kms_chamelium@hdmi-crc-fast:
>     - fi-icl-u2:          [PASS][10] -> [FAIL][11] ([fdo#109570])
>    [10]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-icl-u2/igt@kms_chamelium@hdmi-crc-fast.html
>    [11]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-icl-u2/igt@kms_chamelium@hdmi-crc-fast.html
> 
>   
> #### Possible fixes ####
> 
>   * igt@gem_ctx_switch@legacy-render:
>     - fi-bxt-dsi:         [INCOMPLETE][12] ([fdo#103927] / [fdo#111381]) -> [PASS][13]
>    [12]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-bxt-dsi/igt@gem_ctx_switch@legacy-render.html
>    [13]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-bxt-dsi/igt@gem_ctx_switch@legacy-render.html
> 
>   * igt@gem_exec_reloc@basic-gtt-read:
>     - fi-icl-u3:          [DMESG-WARN][14] ([fdo#107724]) -> [PASS][15] +1 similar issue
>    [14]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-icl-u3/igt@gem_exec_reloc@basic-gtt-read.html
>    [15]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-icl-u3/igt@gem_exec_reloc@basic-gtt-read.html
> 
>   * igt@i915_selftest@live_blt:
>     - fi-glk-dsi:         [TIMEOUT][16] -> [PASS][17]
>    [16]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-glk-dsi/igt@i915_selftest@live_blt.html
>    [17]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-glk-dsi/igt@i915_selftest@live_blt.html
>     - fi-cfl-8700k:       [TIMEOUT][18] -> [PASS][19]
>    [18]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-cfl-8700k/igt@i915_selftest@live_blt.html
>    [19]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-cfl-8700k/igt@i915_selftest@live_blt.html
>     - fi-skl-iommu:       [TIMEOUT][20] -> [PASS][21]
>    [20]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-skl-iommu/igt@i915_selftest@live_blt.html
>    [21]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-skl-iommu/igt@i915_selftest@live_blt.html
>     - {fi-tgl-u}:         [TIMEOUT][22] -> [PASS][23]
>    [22]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-tgl-u/igt@i915_selftest@live_blt.html
>    [23]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-tgl-u/igt@i915_selftest@live_blt.html
> 
>   
> #### Warnings ####
> 
>   * igt@kms_chamelium@common-hpd-after-suspend:
>     - fi-icl-u2:          [DMESG-WARN][24] ([fdo#102505] / [fdo#106107] / [fdo#110390]) -> [DMESG-WARN][25] ([fdo#102505] / [fdo#110390])
>    [24]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7205/fi-icl-u2/igt@kms_chamelium@common-hpd-after-suspend.html
>    [25]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/fi-icl-u2/igt@kms_chamelium@common-hpd-after-suspend.html
> 
>   
>   {name}: This element is suppressed. This means it is ignored when computing
>           the status of the difference (SUCCESS, WARNING, or FAILURE).
> 
>   [fdo#102505]: https://bugs.freedesktop.org/show_bug.cgi?id=102505
>   [fdo#103927]: https://bugs.freedesktop.org/show_bug.cgi?id=103927
>   [fdo#106107]: https://bugs.freedesktop.org/show_bug.cgi?id=106107
>   [fdo#107724]: https://bugs.freedesktop.org/show_bug.cgi?id=107724
>   [fdo#109570]: https://bugs.freedesktop.org/show_bug.cgi?id=109570
>   [fdo#110390]: https://bugs.freedesktop.org/show_bug.cgi?id=110390
>   [fdo#111381]: https://bugs.freedesktop.org/show_bug.cgi?id=111381
> 
> 
> Participating hosts (49 -> 42)
> ------------------------------
> 
>   Additional (1): fi-kbl-r 
>   Missing    (8): fi-kbl-soraka fi-ilk-m540 fi-hsw-4200u fi-bsw-cyan fi-icl-y fi-tgl-y fi-byt-clapper fi-bdw-samus 
> 
> 
> Build changes
> -------------
> 
>   * CI: CI-20190529 -> None
>   * Linux: CI_DRM_7205 -> Patchwork_15031
> 
>   CI-20190529: 20190529
>   CI_DRM_7205: b584710d3ea551d555a6de8470cb6da8cab6fd6f @ git://anongit.freedesktop.org/gfx-ci/linux
>   IGT_5248: 81e55f1f97d73e48f00caa7e4fb98295023c5afa @ git://anongit.freedesktop.org/xorg/app/intel-gpu-tools
>   Patchwork_15031: 6c914e215890d3eb94120a2346e8bf55dd6b1f5a @ git://anongit.freedesktop.org/gfx-ci/linux
> 
> 
> == Linux commits ==
> 
> 6c914e215890 drm/i915: Avoid HPD poll detect triggering a new detect cycle
> 
> == Logs ==
> 
> For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_15031/index.html
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