Re: ✗ Fi.CI.BAT: failure for series starting with [1/4] drm/i915/display: Handle fused off display correctly

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On 10/10/2019 23:18, Patchwork wrote:
> == Series Details ==
> 
> Series: series starting with [1/4] drm/i915/display: Handle fused off display correctly
> URL   : https://patchwork.freedesktop.org/series/67872/
> State : failure
> 
> == Summary ==
> 
> CI Bug Log - changes from CI_DRM_7058 -> Patchwork_14757
> ====================================================
> 
> Summary
> -------
> 
>   **FAILURE**
> 
>   Serious unknown changes coming with Patchwork_14757 absolutely need to be
>   verified manually.
>   
>   If you think the reported changes have nothing to do with the changes
>   introduced in Patchwork_14757, 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_14757/index.html
> 
> Possible new issues
> -------------------
> 
>   Here are the unknown changes that may have been introduced in Patchwork_14757:
> 
> ### IGT changes ###
> 
> #### Possible regressions ####
> 
>   * igt@i915_selftest@live_hangcheck:
>     - fi-hsw-4770r:       [PASS][1] -> [DMESG-FAIL][2]
>    [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7058/fi-hsw-4770r/igt@i915_selftest@live_hangcheck.html
>    [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14757/fi-hsw-4770r/igt@i915_selftest@live_hangcheck.html

Do you think this is related to your patch series?

> 
>   * igt@runner@aborted:
>     - fi-bxt-dsi:         NOTRUN -> [FAIL][3]
>    [3]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14757/fi-bxt-dsi/igt@runner@xxxxxxxxxxxx
>     - fi-apl-guc:         NOTRUN -> [FAIL][4]
>    [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14757/fi-apl-guc/igt@runner@xxxxxxxxxxxx

<7>[    7.816334] [drm:intel_dump_cdclk_state [i915]] Current CDCLK
624000 kHz, VCO 1248000 kHz, ref 19200 kHz, bypass 19200 kHz, voltage
level 25
<4>[    7.816371] ------------[ cut here ]------------
<4>[    7.816375] WARN_ON(vco != 8100000 && vco != 8640000)
<4>[    7.816540] WARNING: CPU: 2 PID: 330 at
drivers/gpu/drm/i915/display/intel_cdclk.c:2392
intel_update_max_cdclk+0x27f/0x330 [i915]
<4>[    7.816544] Modules linked in: i915(+) x86_pkg_temp_thermal
coretemp btusb btrtl crct10dif_pclmul btbcm crc32_pclmul btintel
snd_hda_intel snd_intel_nhlt bluetooth snd_hda_codec ghash_clmulni_intel
snd_hwdep snd_hda_core ecdh_generic ecc lpc_ich snd_pcm r8169 realtek
mei_me mei prime_numbers pinctrl_broxton pinctrl_intel
<4>[    7.816575] CPU: 2 PID: 330 Comm: modprobe Tainted: G     U
    5.4.0-rc2-CI-Patchwork_14757+ #1
<4>[    7.816579] Hardware name: Intel corporation NUC6CAYS/NUC6CAYB,
BIOS AYAPLCEL.86A.0056.2018.0926.1100 09/26/2018
<4>[    7.816705] RIP: 0010:intel_update_max_cdclk+0x27f/0x330 [i915]
<4>[    7.816710] Code: 4c 0a 00 e9 e0 fd ff ff 69 f0 b4 00 00 00 e9 59
ff ff ff 48 c7 c6 d0 9c 46 a0 48 c7 c7 c3 07 49 a0 89 44 24 04 e8 51 71
d4 e0 <0f> 0b 8b 44 24 04 e9 94 fe ff ff c7 87 e0 8f 00 00 80 d5 04 00 b8
<4>[    7.816714] RSP: 0000:ffffc9000036b9c8 EFLAGS: 00010286
<4>[    7.816718] RAX: 0000000000000000 RBX: ffff888258600000 RCX:
0000000000000002
<4>[    7.816722] RDX: 0000000000000006 RSI: ffff8882614e56d0 RDI:
ffffffff8213bd09
<4>[    7.816725] RBP: 0000000000000000 R08: ffff8882614e56d0 R09:
0000000000000000
<4>[    7.816729] R10: 0000000000000000 R11: 0000000000000000 R12:
0000000000000003
<4>[    7.816732] R13: 0000000000000002 R14: ffff888258600000 R15:
0000000000000000
<4>[    7.816736] FS:  00007f016a3d6540(0000) GS:ffff888277b00000(0000)
knlGS:0000000000000000
<4>[    7.816739] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[    7.816743] CR2: 00007fc9f38265a0 CR3: 0000000262ea0000 CR4:
00000000003406e0
<4>[    7.816746] Call Trace:
<4>[    7.816863]  intel_modeset_init+0xcfc/0x1be0 [i915]
<4>[    7.816958]  ? intel_irq_postinstall+0x1a6/0x5c0 [i915]
<4>[    7.817051]  i915_driver_probe+0xb68/0x15e0 [i915]
<4>[    7.817065]  ? find_held_lock+0x2d/0x90
<4>[    7.817073]  ? __pm_runtime_resume+0x4f/0x80
<4>[    7.817172]  i915_pci_probe+0x43/0x1b0 [i915]
<4>[    7.817180]  ? _raw_spin_unlock_irqrestore+0x39/0x60
<4>[    7.817190]  pci_device_probe+0x9e/0x120
<4>[    7.817199]  really_probe+0xea/0x420
<4>[    7.817207]  driver_probe_device+0x10b/0x120
<4>[    7.817214]  device_driver_attach+0x4a/0x50
<4>[    7.817220]  __driver_attach+0x97/0x130
<4>[    7.817226]  ? device_driver_attach+0x50/0x50
<4>[    7.817231]  bus_for_each_dev+0x74/0xc0
<4>[    7.817239]  bus_add_driver+0x142/0x220
<4>[    7.817245]  ? 0xffffffffa05a7000
<4>[    7.817250]  driver_register+0x56/0xf0
<4>[    7.817255]  ? 0xffffffffa05a7000
<4>[    7.817260]  do_one_initcall+0x58/0x2ff
<4>[    7.817267]  ? rcu_read_lock_sched_held+0x4d/0x80
<4>[    7.817274]  ? kmem_cache_alloc_trace+0x290/0x2c0
<4>[    7.817284]  do_init_module+0x56/0x1f8
<4>[    7.817290]  load_module+0x243e/0x29f0
<4>[    7.817320]  ? __do_sys_finit_module+0xe9/0x110
<4>[    7.817324]  __do_sys_finit_module+0xe9/0x110
<4>[    7.817344]  do_syscall_64+0x4f/0x210
<4>[    7.817350]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[    7.817355] RIP: 0033:0x7f0169ef3839
<4>[    7.817361] Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40
00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08
0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1f f6 2c 00 f7 d8 64 89 01 48
<4>[    7.817364] RSP: 002b:00007ffcf9965528 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
<4>[    7.817369] RAX: ffffffffffffffda RBX: 000055c220e52f60 RCX:
00007f0169ef3839
<4>[    7.817372] RDX: 0000000000000000 RSI: 000055c220e4bb30 RDI:
0000000000000000
<4>[    7.817376] RBP: 000055c220e4bb30 R08: 0000000000000000 R09:
0000000000000000
<4>[    7.817379] R10: 0000000000000000 R11: 0000000000000246 R12:
0000000000000000
<4>[    7.817382] R13: 000055c220e53090 R14: 0000000000040000 R15:
0000000000000000
<4>[    7.817399] irq event stamp: 398376
<4>[    7.817405] hardirqs last  enabled at (398375):
[<ffffffff8112a7fc>] vprintk_emit+0xcc/0x340
<4>[    7.817409] hardirqs last disabled at (398376):
[<ffffffff81001bba>] trace_hardirqs_off_thunk+0x1a/0x20
<4>[    7.817414] softirqs last  enabled at (398360):
[<ffffffff81c00385>] __do_softirq+0x385/0x47f
<4>[    7.817419] softirqs last disabled at (398353):
[<ffffffff810b7eaa>] irq_exit+0xba/0xc0
<4>[    7.817422] ---[ end trace 43ed7a1d8633a989 ]---

Anyways, thanks for doing this work! That makes me think that maybe we
do not have good reporting capabilities for fused-off functionalities
which might confuse the userspace and developers looking at bug reports.

Martin
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