Bug 103337 - [CI] igt@* - dmesg-warn - *ERROR* Panel is unable to calculate any CRC after 6 vblanks | Unclaimed read from register 0x130090
Summary: [CI] igt@* - dmesg-warn - *ERROR* Panel is unable to calculate any CRC after ...
Status: CLOSED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Imre Deak
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2017-10-18 09:41 UTC by Marta Löfstedt
Modified: 2018-03-16 08:48 UTC (History)
1 user (show)

See Also:
i915 platform: CFL
i915 features: display/Other

Attachments
kernel log (14.05 MB, text/plain)
2018-01-16 13:50 UTC, Hector Velazquez 		no flags Details
dmesg log (280.67 KB, text/plain)
2018-02-27 21:31 UTC, Octavio 		no flags Details
View All

Description Marta Löfstedt 2017-10-18 09:41:57 UTC 
CI_DRM_3252 GLK-shards:

[  264.131055] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  264.155073] Unclaimed read from register 0x130090
[  264.155190] ------------[ cut here ]------------
[  264.155268] WARNING: CPU: 0 PID: 2655 at drivers/gpu/drm/i915/intel_uncore.c:860 __unclaimed_reg_debug+0x47/0x60 [i915]
[  264.155274] Modules linked in: vgem snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp i915 coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm mei_me mei r8169 mii prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
[  264.155404] CPU: 0 PID: 2655 Comm: cat Tainted: G     U          4.14.0-rc5-CI-CI_DRM_3252+ #1
[  264.155410] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[  264.155416] task: ffff880176d6a780 task.stack: ffffc90000e9c000
[  264.155491] RIP: 0010:__unclaimed_reg_debug+0x47/0x60 [i915]
[  264.155497] RSP: 0018:ffffc90000e9fcf8 EFLAGS: 00010092
[  264.155507] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[  264.155513] RDX: 0000000080000002 RSI: ffffffff81d183d7 RDI: 00000000ffffffff
[  264.155518] RBP: ffffc90000e9fd10 R08: 0000000000000000 R09: 0000000000000001
[  264.155523] R10: ffffc90000e9fc88 R11: 000000001110455f R12: 0000000000130090
[  264.155529] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88016f230bb0
[  264.155535] FS:  00007f9a86545700(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
[  264.155541] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  264.155547] CR2: 000055a41dd4f000 CR3: 000000016fc3e000 CR4: 00000000003406f0
[  264.155552] Call Trace:
[  264.155631]  fwtable_read32+0x243/0x2c0 [i915]
[  264.155704]  i915_drpc_info+0x27d/0x8e0 [i915]
[  264.155720]  seq_read+0xe1/0x3a0
[  264.155738]  full_proxy_read+0x54/0x80
[  264.155750]  __vfs_read+0x28/0x120
[  264.155767]  ? entry_SYSCALL_64_fastpath+0x5/0xb1
[  264.155776]  vfs_read+0xa8/0x150
[  264.155787]  SyS_read+0x49/0xb0
[  264.155799]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[  264.155805] RIP: 0033:0x7f9a86073890
[  264.155810] RSP: 002b:00007fff9bc9dfb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[  264.155821] RAX: ffffffffffffffda RBX: ffffffff81491f73 RCX: 00007f9a86073890
[  264.155827] RDX: 0000000000020000 RSI: 000055a41dd4c000 RDI: 0000000000000005
[  264.155832] RBP: ffffc90000e9ff88 R08: 00007f9a8633cb88 R09: 0000000000021010
[  264.155838] R10: 00007f9a8633cb58 R11: 0000000000000246 R12: 0000000000020000
[  264.155843] R13: 0000000000000005 R14: 000055a41dd4c000 R15: 0000000000020000
[  264.155855]  ? __this_cpu_preempt_check+0x13/0x20
[  264.155869] Code: 01 75 31 84 db 75 2d 45 84 ed 48 c7 c0 e8 bd 23 a0 48 c7 c6 de bd 23 a0 48 0f 44 f0 44 89 e2 48 c7 c7 f1 bd 23 a0 e8 ba ff f6 e0 <0f> ff 83 2d c0 16 10 00 01 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 
[  264.156187] ---[ end trace bb371c712040c418 ]---
[  264.274836] atkbd serio0: Failed to enable keyboard on isa0060/serio0

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3252/shard-glkb1/igt@drv_suspend@debugfs-reader.html
	
Also, CI_DRM_3253
Same warning print without the WARNING
[  343.551512] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3253/shard-glkb1/igt@drv_suspend@debugfs-reader.html
Comment 1 Marta Löfstedt 2017-10-19 08:09:28 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3261/shard-glkb2/igt@debugfs_test@read_all_entries.html


[ 3203.809549] Unclaimed read from register 0x130090
[ 3203.809592] ------------[ cut here ]------------
[ 3203.809644] WARNING: CPU: 0 PID: 5669 at drivers/gpu/drm/i915/intel_uncore.c:860 __unclaimed_reg_debug+0x47/0x60 [i915]
[ 3203.809647] Modules linked in: vgem snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core r8169 mii snd_pcm mei_me prime_numbers mei i2c_hid pinctrl_geminilake pinctrl_intel
[ 3203.809696] CPU: 0 PID: 5669 Comm: debugfs_test Tainted: G     U          4.14.0-rc5-CI-CI_DRM_3261+ #1
[ 3203.809699] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[ 3203.809702] task: ffff88013aab8040 task.stack: ffffc9000049c000
[ 3203.809750] RIP: 0010:__unclaimed_reg_debug+0x47/0x60 [i915]
[ 3203.809754] RSP: 0018:ffffc9000049fcf8 EFLAGS: 00010092
[ 3203.809758] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[ 3203.809761] RDX: 0000000080000002 RSI: ffffffff81d1849f RDI: 00000000ffffffff
[ 3203.809764] RBP: ffffc9000049fd10 R08: 0000000000000001 R09: 0000000000000000
[ 3203.809767] R10: ffffc9000049fc88 R11: 0000000000000000 R12: 0000000000130090
[ 3203.809770] R13: 0000000000000001 R14: 0000000000000000 R15: ffff88016e840bb0
[ 3203.809773] FS:  00007fc61d044a40(0000) GS:ffff88017fc00000(0000) knlGS:0000000000000000
[ 3203.809778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3203.809781] CR2: 000055eb1ffe3008 CR3: 000000016cc26000 CR4: 00000000003406f0
[ 3203.809783] Call Trace:
[ 3203.809833]  fwtable_read32+0x243/0x2c0 [i915]
[ 3203.809878]  i915_drpc_info+0x27d/0x8e0 [i915]
[ 3203.809886]  seq_read+0xe1/0x3a0
[ 3203.809894]  full_proxy_read+0x54/0x80
[ 3203.809902]  __vfs_read+0x28/0x120
[ 3203.809907]  ? putname+0x54/0x60
[ 3203.809912]  ? kmem_cache_free+0x290/0x330
[ 3203.809915]  ? kmem_cache_free+0x12c/0x330
[ 3203.809920]  vfs_read+0xa8/0x150
[ 3203.809924]  SyS_read+0x49/0xb0
[ 3203.809932]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 3203.809935] RIP: 0033:0x7fc61b51e6d0
[ 3203.809938] RSP: 002b:00007fff501a7a18 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 3203.809943] RAX: ffffffffffffffda RBX: 000055eb1ffc7f6b RCX: 00007fc61b51e6d0
[ 3203.809946] RDX: 0000000000000200 RSI: 00007fff501a7a30 RDI: 0000000000000006
[ 3203.809948] RBP: 00007fff501a7a30 R08: 000055eb1ff6f300 R09: 0000000000000000
[ 3203.809951] R10: 0000000000000000 R11: 0000000000000246 R12: 000055eb1ffc7a00
[ 3203.809954] R13: 0000000000000005 R14: 0000000000000006 R15: 0000000000000003
[ 3203.809960] Code: 01 75 31 84 db 75 2d 45 84 ed 48 c7 c0 fc 7c 24 a0 48 c7 c6 f2 7c 24 a0 48 0f 44 f0 44 89 e2 48 c7 c7 05 7d 24 a0 e8 4a 40 f6 e0 <0f> ff 83 2d 30 07 10 00 01 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 
[ 3203.810058] ---[ end trace e04068ecac830ca6 ]---
Comment 2 Marta Löfstedt 2017-10-23 07:38:02 UTC 
	

[ 2150.111884] Unclaimed read from register 0x130090
[ 2150.111939] ------------[ cut here ]------------
[ 2150.112008] WARNING: CPU: 3 PID: 8268 at drivers/gpu/drm/i915/intel_uncore.c:860 __unclaimed_reg_debug+0x47/0x60 [i915]
[ 2150.112012] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp i915 coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm mei_me prime_numbers r8169 mei mii i2c_hid pinctrl_geminilake pinctrl_intel [last unloaded: vgem]
[ 2150.112081] CPU: 3 PID: 8268 Comm: debugfs_test Tainted: G     U          4.14.0-rc5-CI-CI_DRM_3272+ #1
[ 2150.112086] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[ 2150.112091] task: ffff8801781a8040 task.stack: ffffc90000e2c000
[ 2150.112159] RIP: 0010:__unclaimed_reg_debug+0x47/0x60 [i915]
[ 2150.112164] RSP: 0018:ffffc90000e2fcf8 EFLAGS: 00010092
[ 2150.112170] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[ 2150.112174] RDX: 0000000080000002 RSI: ffffffff81cb3f8b RDI: 00000000ffffffff
[ 2150.112178] RBP: ffffc90000e2fd10 R08: 0000000000000001 R09: 0000000000000000
[ 2150.112182] R10: ffffc90000e2fc88 R11: 0000000000000000 R12: 0000000000130090
[ 2150.112186] R13: 0000000000000001 R14: 0000000000000000 R15: ffff8801683c0bb0
[ 2150.112191] FS:  00007fb13630aa40(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
[ 2150.112195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2150.112199] CR2: 00007fdcbdb2c020 CR3: 0000000113915000 CR4: 00000000003406e0
[ 2150.112203] Call Trace:
[ 2150.112271]  fwtable_read32+0x243/0x2c0 [i915]
[ 2150.112333]  i915_drpc_info+0x27d/0x8e0 [i915]
[ 2150.112343]  seq_read+0xe1/0x3a0
[ 2150.112356]  full_proxy_read+0x54/0x80
[ 2150.112364]  __vfs_read+0x28/0x120
[ 2150.112371]  ? putname+0x54/0x60
[ 2150.112377]  ? kmem_cache_free+0x290/0x330
[ 2150.112382]  ? kmem_cache_free+0x12c/0x330
[ 2150.112388]  vfs_read+0xa8/0x150
[ 2150.112395]  SyS_read+0x49/0xb0
[ 2150.112404]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 2150.112409] RIP: 0033:0x7fb1347e46d0
[ 2150.112413] RSP: 002b:00007fff5e7af988 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 2150.112419] RAX: ffffffffffffffda RBX: 0000561424a4caeb RCX: 00007fb1347e46d0
[ 2150.112423] RDX: 0000000000000200 RSI: 00007fff5e7af9a0 RDI: 0000000000000006
[ 2150.112427] RBP: 00007fff5e7af9a0 R08: 0000561424a47b40 R09: 0000000000000000
[ 2150.112431] R10: 0000000000000000 R11: 0000000000000246 R12: 0000561424a4c580
[ 2150.112435] R13: 0000000000000005 R14: 0000000000000006 R15: 0000000000000000
[ 2150.112444] Code: 01 75 31 84 db 75 2d 45 84 ed 48 c7 c0 c9 6c 22 a0 48 c7 c6 bf 6c 22 a0 48 0f 44 f0 44 89 e2 48 c7 c7 d2 6c 22 a0 e8 2a 50 f8 e0 <0f> ff 83 2d 30 07 10 00 01 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 
[ 2150.112578] ---[ end trace bd08d0d997cb72dd ]---

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3272/shard-glkb5/igt@debugfs_test@read_all_entries_display_off.html
Comment 3 Marta Löfstedt 2017-11-02 07:20:28 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3306/shard-glkb3/igt@kms_frontbuffer_tracking@fbc-1p-primscrn-pri-indfb-draw-mmap-gtt.html
piglit 
[ 3798.061259] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks

From dmesg it looks like the actual subtest hasn't started yet:
<7>[ 3797.660555] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 3798.061259] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
<7>[ 3798.078124] [IGT] kms_frontbuffer_tracking: starting subtest fbc-1p-primscrn-pri-indfb-draw-mmap-gtt

The same thing is going on ealier:
<7>[ 3738.328402] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 3738.728622] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
...
<7>[ 3738.746617] [IGT] kms_frontbuffer_tracking: starting subtest fbcpsr-suspend

and here:
<7>[ 3786.839316] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 3787.250869] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
<7>[ 3787.267657] [IGT] kms_frontbuffer_tracking: starting subtest fbc-2p-scndscrn-pri-shrfb-draw-render

The we can look in the previous shard on this machine without reboot:
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3306/shard-glkb3/dmesg28.log
<7>[ 3255.851528] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 3256.262032] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
...
<7>[ 3256.279360] [IGT] kms_frontbuffer_tracking: starting subtest psr-1p-primscrn-pri-indfb-draw-pwrite

In the run before that one: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3306/shard-glkb3/dmesg25.log
The issue isn't present.

However, in the on after this run, the last shard: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3306/shard-glkb3/dmesg34.log

The issue continues:
<7>[ 4388.690460] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 4389.103319] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
<7>[ 4389.120204] [IGT] kms_frontbuffer_tracking: starting subtest fbc-2p-scndscrn-pri-shrfb-draw-blt
and
<7>[ 4565.469133] [IGT] kms_frontbuffer_tracking: executing
...
<3>[ 4565.874254] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
<7>[ 4565.891824] [IGT] kms_frontbuffer_tracking: starting subtest psr-2p-primscrn-spr-indfb-move
Comment 4 Marta Löfstedt 2017-11-03 06:54:15 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3310/shard-glkb4/igt@perf@rc6-disable.html

[ 4176.043375] Unclaimed read from register 0x130090
[ 4176.043427] ------------[ cut here ]------------
[ 4176.043505] WARNING: CPU: 3 PID: 10053 at drivers/gpu/drm/i915/intel_uncore.c:976 __unclaimed_reg_debug+0x47/0x60 [i915]
[ 4176.043530] Modules linked in: i2c_dev snd_hda_intel i915 vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core mei_me snd_pcm mei r8169 mii prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel [last unloaded: i915]
[ 4176.043646] CPU: 3 PID: 10053 Comm: perf Tainted: G     U  W       4.14.0-rc7-CI-CI_DRM_3310+ #1
[ 4176.043667] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[ 4176.043691] task: ffff8801681d0040 task.stack: ffffc90000130000
[ 4176.043754] RIP: 0010:__unclaimed_reg_debug+0x47/0x60 [i915]
[ 4176.043768] RSP: 0018:ffffc90000133cf8 EFLAGS: 00010092
[ 4176.043783] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[ 4176.043800] RDX: 0000000080000002 RSI: ffffffff81cb4dab RDI: 00000000ffffffff
[ 4176.043817] RBP: ffffc90000133d10 R08: 0000000000000001 R09: 0000000000000000
[ 4176.043834] R10: ffffc90000133c88 R11: 0000000000000000 R12: 0000000000130090
[ 4176.043850] R13: 0000000000000001 R14: 0000000000000000 R15: ffff880172ae0bb8
[ 4176.043868] FS:  00007fe1965448c0(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
[ 4176.043887] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4176.043901] CR2: 0000562455bc7248 CR3: 000000017297d000 CR4: 00000000003406e0
[ 4176.043918] Call Trace:
[ 4176.043975]  fwtable_read32+0x243/0x2c0 [i915]
[ 4176.044031]  i915_drpc_info+0x27d/0x8e0 [i915]
[ 4176.044049]  seq_read+0xe1/0x3a0
[ 4176.044063]  full_proxy_read+0x54/0x80
[ 4176.044077]  __vfs_read+0x28/0x120
[ 4176.044091]  ? SyS_newfstat+0x3a/0x50
[ 4176.044103]  vfs_read+0xa8/0x150
[ 4176.044114]  SyS_read+0x49/0xb0
[ 4176.044128]  entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 4176.044140] RIP: 0033:0x7fe194a4b890
[ 4176.044150] RSP: 002b:00007ffc5806c408 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 4176.044170] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe194a4b890
[ 4176.044187] RDX: 0000000000001000 RSI: 0000562455bc6240 RDI: 0000000000000006
[ 4176.044204] RBP: 0000000000000006 R08: 00007fe194d150a8 R09: 0000000000000000
[ 4176.044220] R10: 00007fe194d14b58 R11: 0000000000000246 R12: 0000000000000000
[ 4176.044237] R13: 00007ffc5806ddc0 R14: 0000000000000000 R15: 0000000000000000
[ 4176.044258] Code: 01 75 31 84 db 75 2d 45 84 ed 48 c7 c0 fe 4c 22 a0 48 c7 c6 f4 4c 22 a0 48 0f 44 f0 44 89 e2 48 c7 c7 07 4d 22 a0 e8 3a 85 f8 e0 <0f> ff 83 2d e0 2d 10 00 01 5b 41 5c 41 5d 5d c3 66 0f 1f 84 00 
[ 4176.044396] ---[ end trace b919e89a83d0d7e0 ]---
Comment 5 Armando Antonio 2017-12-07 20:14:50 UTC 
This issue is happening on CFL with latest configuration.

Test cases:
igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernate

Hardware configuration:
 intel-gpu-tools-1.20-189-g1db1246

dmesg summary:
[  112.449242] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  112.599206] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  112.749203] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  112.899254] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  113.049197] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  113.199258] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  113.349189] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  113.483122] hpet_rtc_timer_reinit: 20 callbacks suppressed
[  113.483122] hpet1: lost 2 rtc interrupts
Comment 6 Octavio 2017-12-19 18:03:37 UTC 
This issue is happening on GLK with latest configuration.

Test cases:
igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernate

configuration
IGT-Version: 1.20-gc0be331 (x86_64) (Linux: 4.15.0-rc4-drm-intel-qa-ww51-commit-bf5cdf9+ x86_64)

[   91.015687] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   91.182245] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   91.348790] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   91.515140] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   91.681693] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   91.848289] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   92.014802] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 7 Elizabeth 2018-01-02 17:10:18 UTC 
CFL with IGT 1.20-g4cd4cc4, kernel 4.15.0-rc5-commit-8cb9e98+, the warn was capture in test igt@debugfs_test@read_all_entries.
	
[   69.501965] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 8 Marta Löfstedt 2018-01-10 11:29:28 UTC 
Note from:
CI_DRM_3611 and all consecutive runs on GLK-shards, so far to CI_DRM_3617

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3611/shard-glkb3/igt@debugfs_test@read_all_entries.html

hits:
[  139.108554] Unclaimed read from register 0x130090
[  139.108666] WARNING: CPU: 1 PID: 1462 at drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  139.108671] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mei_me mii mei prime_numbers i2c_hid pinctrl_geminilake pinctrl_intel
[  139.108800] CPU: 1 PID: 1462 Comm: debugfs_test Tainted: G     U           4.15.0-rc7-CI-CI_DRM_3611+ #1
[  139.108806] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[  139.108892] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  139.108898] RSP: 0018:ffffc9000059bd38 EFLAGS: 00010092
[  139.108908] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[  139.108914] RDX: 0000000080000002 RSI: ffffffff820ab3a7 RDI: 00000000ffffffff
[  139.108919] RBP: 0000000000130090 R08: 0000000000000000 R09: 0000000000000001
[  139.108925] R10: ffffc9000059bcd0 R11: 0000000000000002 R12: 0000000000000001
[  139.108930] R13: ffff8801695c0ca0 R14: 0000000000000000 R15: 0000000000000202
[  139.108936] FS:  00007fbb4cd6da40(0000) GS:ffff88017fc80000(0000) knlGS:0000000000000000
[  139.108942] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  139.108948] CR2: 000055921b94d2d8 CR3: 000000016a208000 CR4: 0000000000340ee0
[  139.108953] Call Trace:
[  139.109046]  fwtable_read32+0x214/0x290 [i915]
[  139.109131]  i915_drpc_info+0x267/0x8c0 [i915]
[  139.109145]  ? rcu_read_lock_sched_held+0x6f/0x80
[  139.109162]  seq_read+0xd8/0x3a0
[  139.109176]  ? debug_check_no_obj_freed+0x11f/0x230
[  139.109190]  full_proxy_read+0x4b/0x70
[  139.109204]  __vfs_read+0x1e/0x120
[  139.109215]  ? do_sys_open+0x197/0x1f0
[  139.109226]  ? do_sys_open+0x197/0x1f0
[  139.109237]  ? entry_SYSCALL_64_fastpath+0x5/0x89
[  139.109248]  vfs_read+0x9e/0x150
[  139.109260]  SyS_read+0x40/0xa0
[  139.109274]  entry_SYSCALL_64_fastpath+0x1c/0x89
[  139.109281] RIP: 0033:0x7fbb4b2456d0
[  139.109286] RSP: 002b:00007ffcd34b3888 EFLAGS: 00000246
[  139.109315] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 85 35 26 a0 48 c7 c6 7b 35 26 a0 48 0f 44 f0 89 ea 48 c7 c7 8e 35 26 a0 e8 b5 8c ed e0 <0f> ff 83 2d 4c bc 16 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[  139.109629] ---[ end trace 8ffd6c56c54f09e5 ]---

i915_regs.h
#define  FORCEWAKE_ACK				_MMIO(0x130090)

I believe the backtrace is from:
i915_debugfs.c -> 
static int gen6_drpc_info(struct seq_file *m)
...
		while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
Comment 9 Marta Löfstedt 2018-01-10 12:21:10 UTC 
Interesting there are no IGT commits between CI_DRM_3611 - CI_DRM_3617, i.e. same test ordering for all the runs.

maybe it isn't a regression. but some other evil thing happening before.

So, before theigt@debugfs_test@read_all_entries there are:
fail: igt/kms_frontbuffer_tracking/fbcpsr-1p-rte
pass: igt/prime_vgem/fence-wait-render
pass: igt/gem_exec_flush/basic-uc-pro-default
skip: igt/kms_plane_lowres/pipe-f-tiling-none
dmesg-warn: igt/pm_rpm/debugfs-read
pass: igt/kms_3d                                  


igt/pm_rpm/debugfs-read
<7>[   98.926697] [drm:sandybridge_pcode_read [i915]] warning: pcode (read from mbox 5) mailbox access failed for i915_drpc_info [i915]: -6

- 6 =>
	case GEN6_PCODE_ILLEGAL_CMD:
		return -ENXIO;
Comment 10 Marta Löfstedt 2018-01-10 14:24:22 UTC 
static int gen6_drpc_info(struct seq_file *m)

does:
sandybridge_pcode_read(dev_priv, GEN6_PCODE_READ_RC6VIDS, &rc6vids);

maybe GEN6_PCODE_READ_RC6VIDS is not available on GLK-shards
Comment 11 Octavio 2018-01-11 14:57:11 UTC 
This issue is happening on GLK with latest configuration.

Test cases:
igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernate

using IGT-Version: 1.20-g19c6c04 (x86_64) (Linux: 4.15.0-rc7-drm-intel-qa-ww2-commit-17fd162+ x86_64)

[  522.092188] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[  522.270930] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  522.420776] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  522.570663] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  522.720625] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  522.870458] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  523.020311] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  523.170154] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  524.383176] hpet1: lost 7162 rtc interrupts
[  525.579227] hpet1: lost 7162 rtc interrupts
[  526.571006] hpet1: lost 7161 rtc interrupts
[  526.856056]  cache: parent cpu1 should not be sleeping
[  527.036223] usb usb1: root hub lost power or was reset
[  527.036225] usb usb2: root hub lost power or was reset
[  527.046453] sd 0:0:0:0: [sda] Starting disk
[  527.275788] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  527.659785] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[  527.871037] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  527.929151] hpet1: lost 7160 rtc interrupts
[  528.087500] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  528.254138] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  528.453908] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  528.620446] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  528.797602] hpet1: lost 7161 rtc interrupts
[  528.886933] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.036662] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.203318] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.353088] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.503077] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.652969] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  529.802787] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 12 Hector Velazquez 2018-01-16 13:49:33 UTC 
This tests has a dmesg-warn on CFL QA 

Tests List:

igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernate

using IGT-Version: 1.20-g84a3080 (x86_64) (Linux: 4.15.0-rc8-drm-tip-ww3-commit-37eb04c+ x86_64)

======================================
        dmesg-warn sample
======================================
. . .
[  871.946912] (elapsed 0.176 seconds) done.
[  871.948330] Suspending console(s) (use no_console_suspend to debug)
[  872.292098] sd 4:0:0:0: [sda] Synchronizing SCSI cache
[  872.292489] sd 4:0:0:0: [sda] Stopping disk
[  872.308830] tpm tpm0: A TPM error (325) occurred stopping the TPM
[  872.861846] IRQ 122: no longer affine to CPU8
[  872.885746] IRQ 17: no longer affine to CPU9
[  872.909690] IRQ 125: no longer affine to CPU10
[  872.933554] IRQ 1: no longer affine to CPU11
[  872.933561] IRQ 8: no longer affine to CPU11
[  872.933565] IRQ 9: no longer affine to CPU11
[  872.933572] IRQ 16: no longer affine to CPU11
[  872.933577] IRQ 20: no longer affine to CPU11
[  872.933584] IRQ 123: no longer affine to CPU11
[  872.942497]  cache: parent cpu1 should not be sleeping
[  872.943660]  cache: parent cpu2 should not be sleeping
[  872.944798]  cache: parent cpu3 should not be sleeping
[  872.945950]  cache: parent cpu4 should not be sleeping
[  872.947132]  cache: parent cpu5 should not be sleeping
[  872.948436]  cache: parent cpu6 should not be sleeping
[  872.949682]  cache: parent cpu7 should not be sleeping
[  872.950980]  cache: parent cpu8 should not be sleeping
[  872.952323]  cache: parent cpu9 should not be sleeping
[  872.953731]  cache: parent cpu10 should not be sleeping
[  872.955161]  cache: parent cpu11 should not be sleeping
[  873.023806] ACPI: button: The lid device is not compliant to SW_LID.
[  873.079073] hpet_rtc_timer_reinit: 19 callbacks suppressed
[  873.079074] hpet1: lost 1427 rtc interrupts
[  873.452873] sd 4:0:0:0: [sda] Starting disk
[  873.714075] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  874.090129] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[  874.117353] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  874.300780] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  874.484106] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  874.667559] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  874.850769] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  875.034178] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
. . .
Comment 13 Hector Velazquez 2018-01-16 13:50:37 UTC 
Created attachment 136761 [details]
kernel log
Comment 14 Martin Peres 2018-01-18 15:04:00 UTC 
The following has also been seen on igt@debugfs_test@read_all_entries_display_off, not just igt@debugfs_test@read_all_entries.

[ 336.785322] ------------[ cut here ]------------
[ 336.785363] Unclaimed read from register 0x130090
[ 336.785431] WARNING: CPU: 3 PID: 1793 at drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[ 336.785435] Modules linked in: snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal i915 intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii mei_me prime_numbers mei i2c_hid pinctrl_geminilake pinctrl_intel
[ 336.785498] CPU: 3 PID: 1793 Comm: debugfs_test Tainted: G U 4.15.0-rc8-CI-CI_DRM_3643+ #1
[ 336.785500] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[ 336.785537] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[ 336.785540] RSP: 0018:ffffc9000194bd38 EFLAGS: 00010092
[ 336.785544] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[ 336.785547] RDX: 0000000080000002 RSI: ffffffff820abd07 RDI: 00000000ffffffff
[ 336.785549] RBP: 0000000000130090 R08: 0000000000000000 R09: 0000000000000001
[ 336.785551] R10: ffffc9000194bcd0 R11: 0000000000000002 R12: 0000000000000001
[ 336.785554] R13: ffff880168650ca0 R14: 0000000000000000 R15: 0000000000000202
[ 336.785557] FS: 00007fc0bd595a40(0000) GS:ffff88017fd80000(0000) knlGS:0000000000000000
[ 336.785559] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 336.785562] CR2: 00007f110a6e4030 CR3: 000000017814a000 CR4: 0000000000340ee0
[ 336.785564] Call Trace:
[ 336.785604] fwtable_read32+0x214/0x290 [i915]
[ 336.785640] i915_drpc_info+0x267/0x8c0 [i915]
[ 336.785646] ? rcu_read_lock_sched_held+0x6f/0x80
[ 336.785654] seq_read+0xd8/0x3a0
[ 336.785660] ? debug_check_no_obj_freed+0x11f/0x230
[ 336.785667] full_proxy_read+0x4b/0x70
[ 336.785673] __vfs_read+0x1e/0x120
[ 336.785678] ? do_sys_open+0x197/0x1f0
[ 336.785683] ? do_sys_open+0x197/0x1f0
[ 336.785688] ? entry_SYSCALL_64_fastpath+0x5/0x8f
[ 336.785693] vfs_read+0x9e/0x150
[ 336.785698] SyS_read+0x40/0xa0
[ 336.785705] entry_SYSCALL_64_fastpath+0x22/0x8f
[ 336.785708] RIP: 0033:0x7fc0bba6d6d0
[ 336.785710] RSP: 002b:00007ffdd2380998 EFLAGS: 00000246
[ 336.785723] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 98 05 26 a0 48 c7 c6 8e 05 26 a0 48 0f 44 f0 89 ea 48 c7 c7 a1 05 26 a0 e8 55 c3 ed e0 <0f> ff 83 2d 6c b8 16 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[ 336.785854] ---[ end trace f74a4c54edc3891e ]---

Source: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3643/shard-glkb3/igt@debugfs_test@read_all_entries_display_off.html
Comment 15 Jari Tahvanainen 2018-01-30 11:04:07 UTC 
Adjusting back to Medium (after discussions), letting CI-Shards to define the priority according the impact over there. Sorry about any inconvenience caused.
Comment 16 Marta Löfstedt 2018-02-08 06:43:38 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4229/shard-glkb1/igt@gem_ctx_create@basic.html
<7>[  234.234820] [IGT] gem_ctx_create: executing
<7>[  234.234890] [drm:intel_power_well_enable [i915]] enabling dpio-common-c
<7>[  234.236312] [drm:intel_power_well_enable [i915]] enabling AUX B
<7>[  234.236349] [drm:intel_power_well_enable [i915]] enabling AUX C
<7>[  234.236387] [drm:intel_power_well_disable [i915]] disabling AUX C
<7>[  234.236423] [drm:intel_power_well_disable [i915]] disabling AUX B
<7>[  234.236459] [drm:intel_power_well_disable [i915]] disabling dpio-common-c
<7>[  234.236496] [drm:intel_power_well_disable [i915]] disabling dpio-common-b
<7>[  234.236532] [drm:intel_power_well_disable [i915]] disabling power well 2
<4>[  234.237101] ------------[ cut here ]------------
<4>[  234.237138] Unclaimed read from register 0x130090
<4>[  234.237206] WARNING: CPU: 2 PID: 1936 at drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
<4>[  234.237208] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii prime_numbers mei_me mei i2c_hid pinctrl_geminilake pinctrl_intel
<4>[  234.237276] CPU: 2 PID: 1936 Comm: cat Tainted: G     U           4.15.0-CI-CI_DRM_3736+ #1
<4>[  234.237279] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
<4>[  234.237315] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
<4>[  234.237320] RSP: 0018:ffffc90000ba3d38 EFLAGS: 00010092
<4>[  234.237327] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
<4>[  234.237330] RDX: 0000000080000002 RSI: ffffffff820abf17 RDI: 00000000ffffffff
<4>[  234.237332] RBP: 0000000000130090 R08: 0000000000000000 R09: 0000000000000001
<4>[  234.237334] R10: ffffc90000ba3cd0 R11: 0000000000000002 R12: 0000000000000001
<4>[  234.237336] R13: ffff880167780ca0 R14: 0000000000000000 R15: 0000000000000202
<4>[  234.237339] FS:  00007fb4568b5700(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
<4>[  234.237341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4>[  234.237344] CR2: 000055b3f5415100 CR3: 0000000172902000 CR4: 0000000000340ee0
<4>[  234.237348] Call Trace:
<4>[  234.237391]  fwtable_read32+0x214/0x290 [i915]
<4>[  234.237429]  i915_drpc_info+0x267/0x8c0 [i915]
<4>[  234.237436]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[  234.237444]  seq_read+0xd8/0x3a0
<4>[  234.237452]  full_proxy_read+0x4b/0x70
<4>[  234.237459]  __vfs_read+0x1e/0x120
<4>[  234.237468]  ? entry_SYSCALL_64_fastpath+0x5/0x8f
<4>[  234.237472]  vfs_read+0x9e/0x150
<4>[  234.237477]  SyS_read+0x40/0xa0
<4>[  234.237483]  entry_SYSCALL_64_fastpath+0x22/0x8f
<4>[  234.237486] RIP: 0033:0x7fb4563e1890
<4>[  234.237488] RSP: 002b:00007fffec12b328 EFLAGS: 00000246
<4>[  234.237501] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 aa 46 26 a0 48 c7 c6 a0 46 26 a0 48 0f 44 f0 89 ea 48 c7 c7 b3 46 26 a0 e8 15 b6 ed e0 <0f> ff 83 2d 1c 0c 17 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
<4>[  234.237631] ---[ end trace 7b6e6c28539f6d16 ]---
<7>[  234.237803] [drm:sandybridge_pcode_read [i915]] warning: pcode (read from mbox 5) mailbox access failed for i915_drpc_info [i915]: -6
Comment 17 Hector Velazquez 2018-02-09 18:02:31 UTC 
This test has a dmesg-warn on GLK QA 

Tests List:

igt@drv_suspend@debugfs-reader-hibernate
igt@drv_suspend@debugfs-reader

IGT-Version: 1.21-g94bd67c (x86_64) (Linux: 4.15.0-drm-tip-ww6-commit-078873d+ x86_64)

======================================
        dmesg-warn sample
======================================
. . .
[  177.388077] (elapsed 0.037 seconds) done.
[  177.389235] Suspending console(s) (use no_console_suspend to debug)
[  178.296465] hpet_rtc_timer_reinit: 14 callbacks suppressed
[  178.296466] hpet1: lost 7161 rtc interrupts
[  179.254906] hpet1: lost 7161 rtc interrupts
[  179.268253] sd 0:0:0:0: [sda] Synchronizing SCSI cache
[  179.268930] sd 0:0:0:0: [sda] Stopping disk
[  179.681697] IRQ 124: no longer affine to CPU1
[  179.709678] IRQ fixup: irq 1 move in progress, old vector 33
[  179.709774] IRQ 122: no longer affine to CPU2
[  179.725495] IRQ 1: no longer affine to CPU3
[  179.725513] IRQ 8: no longer affine to CPU3
[  179.725523] IRQ 9: no longer affine to CPU3
[  179.725540] IRQ 27: no longer affine to CPU3
[  179.725562] IRQ 30: no longer affine to CPU3
[  179.725583] IRQ 33: no longer affine to CPU3
[  179.725593] IRQ 34: no longer affine to CPU3
[  179.725604] IRQ 35: no longer affine to CPU3
[  179.736129]  cache: parent cpu1 should not be sleeping
[  179.739679]  cache: parent cpu2 should not be sleeping
[  179.743416]  cache: parent cpu3 should not be sleeping
[  179.845790] ACPI: button: The lid device is not compliant to SW_LID.
[  180.098407] sd 0:0:0:0: [sda] Starting disk
[  180.655249] done.
[  180.790665] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  180.846649] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  180.940567] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  181.090451] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  181.226520] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[  181.240352] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  181.390203] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  181.539998] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  181.689871] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
. . .
Comment 18 Jani Saarinen 2018-02-12 08:43:26 UTC 
I suppose fixed already:
"Thanks for the review and testing I pushed the patch to -dinq."
Comment 19 Jani Saarinen 2018-02-12 08:44:18 UTC 
Imre Deak <imre.deak@intel.com>	2018-02-08 13:23:31
commit	928f0cd0eb0511e19b416e34a030ebff6785fa52
Comment 20 Marta Löfstedt 2018-02-12 08:57:29 UTC 
fix integrated to CI_DRM_3749 no new occurrences I will archive the bug from cibuglog perspective, but since QA also has filed stuff on it I can't close.
Comment 21 Martin Peres 2018-02-12 09:38:10 UTC 
The following is still happening. Should I create a new bug?

[  234.237101] ------------[ cut here ]------------
[  234.237138] Unclaimed read from register 0x130090
[  234.237206] WARNING: CPU: 2 PID: 1936 at drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50 [i915]
[  234.237208] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii prime_numbers mei_me mei i2c_hid pinctrl_geminilake pinctrl_intel
[  234.237276] CPU: 2 PID: 1936 Comm: cat Tainted: G     U           4.15.0-CI-CI_DRM_3736+ #1
[  234.237279] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
[  234.237315] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
[  234.237320] RSP: 0018:ffffc90000ba3d38 EFLAGS: 00010092
[  234.237327] RAX: 0000000000000025 RBX: 0000000000000000 RCX: 0000000000000002
[  234.237330] RDX: 0000000080000002 RSI: ffffffff820abf17 RDI: 00000000ffffffff
[  234.237332] RBP: 0000000000130090 R08: 0000000000000000 R09: 0000000000000001
[  234.237334] R10: ffffc90000ba3cd0 R11: 0000000000000002 R12: 0000000000000001
[  234.237336] R13: ffff880167780ca0 R14: 0000000000000000 R15: 0000000000000202
[  234.237339] FS:  00007fb4568b5700(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000
[  234.237341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  234.237344] CR2: 000055b3f5415100 CR3: 0000000172902000 CR4: 0000000000340ee0
[  234.237348] Call Trace:
[  234.237391]  fwtable_read32+0x214/0x290 [i915]
[  234.237429]  i915_drpc_info+0x267/0x8c0 [i915]
[  234.237436]  ? rcu_read_lock_sched_held+0x6f/0x80
[  234.237444]  seq_read+0xd8/0x3a0
[  234.237452]  full_proxy_read+0x4b/0x70
[  234.237459]  __vfs_read+0x1e/0x120
[  234.237468]  ? entry_SYSCALL_64_fastpath+0x5/0x8f
[  234.237472]  vfs_read+0x9e/0x150
[  234.237477]  SyS_read+0x40/0xa0
[  234.237483]  entry_SYSCALL_64_fastpath+0x22/0x8f
[  234.237486] RIP: 0033:0x7fb4563e1890
[  234.237488] RSP: 002b:00007fffec12b328 EFLAGS: 00000246
[  234.237501] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 aa 46 26 a0 48 c7 c6 a0 46 26 a0 48 0f 44 f0 89 ea 48 c7 c7 b3 46 26 a0 e8 15 b6 ed e0 <0f> ff 83 2d 1c 0c 17 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
[  234.237631] ---[ end trace 7b6e6c28539f6d16 ]---
[  234.311753] Setting dangerous option reset - tainting kernel

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4229/shard-glkb1/igt@gem_ctx_create@basic.html
Comment 22 Marta Löfstedt 2018-02-12 09:41:46 UTC 
(In reply to Martin Peres from comment #21)
> The following is still happening. Should I create a new bug?
> 
> [  234.237101] ------------[ cut here ]------------
> [  234.237138] Unclaimed read from register 0x130090
> [  234.237206] WARNING: CPU: 2 PID: 1936 at
> drivers/gpu/drm/i915/intel_uncore.c:986 __unclaimed_reg_debug+0x3b/0x50
> [i915]
> [  234.237208] Modules linked in: vgem snd_hda_codec_hdmi
> snd_hda_codec_realtek snd_hda_codec_generic i915 x86_pkg_temp_thermal
> intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel
> snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mii
> prime_numbers mei_me mei i2c_hid pinctrl_geminilake pinctrl_intel
> [  234.237276] CPU: 2 PID: 1936 Comm: cat Tainted: G     U          
> 4.15.0-CI-CI_DRM_3736+ #1
> [  234.237279] Hardware name: Intel Corp. Geminilake/GLK RVP2 LP4SD (07),
> BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017
> [  234.237315] RIP: 0010:__unclaimed_reg_debug+0x3b/0x50 [i915]
> [  234.237320] RSP: 0018:ffffc90000ba3d38 EFLAGS: 00010092
> [  234.237327] RAX: 0000000000000025 RBX: 0000000000000000 RCX:
> 0000000000000002
> [  234.237330] RDX: 0000000080000002 RSI: ffffffff820abf17 RDI:
> 00000000ffffffff
> [  234.237332] RBP: 0000000000130090 R08: 0000000000000000 R09:
> 0000000000000001
> [  234.237334] R10: ffffc90000ba3cd0 R11: 0000000000000002 R12:
> 0000000000000001
> [  234.237336] R13: ffff880167780ca0 R14: 0000000000000000 R15:
> 0000000000000202
> [  234.237339] FS:  00007fb4568b5700(0000) GS:ffff88017fd00000(0000)
> knlGS:0000000000000000
> [  234.237341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  234.237344] CR2: 000055b3f5415100 CR3: 0000000172902000 CR4:
> 0000000000340ee0
> [  234.237348] Call Trace:
> [  234.237391]  fwtable_read32+0x214/0x290 [i915]
> [  234.237429]  i915_drpc_info+0x267/0x8c0 [i915]
> [  234.237436]  ? rcu_read_lock_sched_held+0x6f/0x80
> [  234.237444]  seq_read+0xd8/0x3a0
> [  234.237452]  full_proxy_read+0x4b/0x70
> [  234.237459]  __vfs_read+0x1e/0x120
> [  234.237468]  ? entry_SYSCALL_64_fastpath+0x5/0x8f
> [  234.237472]  vfs_read+0x9e/0x150
> [  234.237477]  SyS_read+0x40/0xa0
> [  234.237483]  entry_SYSCALL_64_fastpath+0x22/0x8f
> [  234.237486] RIP: 0033:0x7fb4563e1890
> [  234.237488] RSP: 002b:00007fffec12b328 EFLAGS: 00000246
> [  234.237501] Code: 3c 01 75 30 84 db 75 2c 45 84 e4 48 c7 c0 aa 46 26 a0
> 48 c7 c6 a0 46 26 a0 48 0f 44 f0 89 ea 48 c7 c7 b3 46 26 a0 e8 15 b6 ed e0
> <0f> ff 83 2d 1c 0c 17 00 01 5b 5d 41 5c c3 0f 1f 80 00 00 00 00 
> [  234.237631] ---[ end trace 7b6e6c28539f6d16 ]---
> [  234.311753] Setting dangerous option reset - tainting kernel
> 
> https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4229/shard-glkb1/
> igt@gem_ctx_create@basic.html

Martin,IGT_4229 is based on CI_DRM_3736 the fix was integrated to CI_DRM_3749 which is after your occurrence.
Comment 23 Imre Deak 2018-02-12 11:47:26 UTC 
There are 2 issues handled in this report:

1. [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks

This is still unsolved I think.

2. Unclaimed read from register 0x130090

Fix for this already merged, per comment#19.
Comment 24 Imre Deak 2018-02-12 11:57:41 UTC 
(In reply to Imre Deak from comment #23)
> There are 2 issues handled in this report:
> 
> 1. [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any
> CRC after 6 vblanks
> 
> This is still unsolved I think.
> 
> 2. Unclaimed read from register 0x130090
> 
> Fix for this already merged, per comment#19.

Hm, actually there is also a third one:

[drm:sandybridge_pcode_read [i915]] warning: pcode (read from mbox 5) mailbox access failed for i915_drpc_info [i915]: -6

for which there is a fix, but it's not merged yet.
Comment 25 Marta Löfstedt 2018-02-12 12:04:40 UTC 
If QA want to reopen I am fine with that. However, for CI the only issues seen in a long time is the "Unclaimed read from register 0x130090" on GLK-shards. This issue appear to be fixed, therefore I have archived the bug from cibuglog perspective.
Comment 26 Octavio 2018-02-27 21:30:59 UTC 
The following test cases have dmesg-warn on CFL QA

igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernate

IGT-Version: 1.21-ga2664f8 (x86_64) (Linux: 4.16.0-rc2-drm-intel-qa-ww9-commit-01a067a+ x86_64)
[cmd] rtcwake: wakeup from "disk" using /dev/rtc0 at Sun Feb 25 06:09:08 2018
Subtest debugfs-reader-hibernate: SUCCESS (4.441s)

[  197.561673] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  197.695111] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  197.861730] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  198.045035] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  198.228417] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  198.411760] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  198.595041] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  198.922071] Suspending console(s) (use no_console_suspend to debug)
[  199.610452]  cache: parent cpu1 should not be sleeping
[  199.611550]  cache: parent cpu2 should not be sleeping
[  199.612653]  cache: parent cpu3 should not be sleeping
[  199.613793]  cache: parent cpu4 should not be sleeping
[  199.614976]  cache: parent cpu5 should not be sleeping
[  199.616228]  cache: parent cpu6 should not be sleeping
[  199.617477]  cache: parent cpu7 should not be sleeping
[  199.618766]  cache: parent cpu8 should not be sleeping
[  199.620095]  cache: parent cpu9 should not be sleeping
[  199.621467]  cache: parent cpu10 should not be sleeping
[  199.622932]  cache: parent cpu11 should not be sleeping
[  199.672137] i2c_designware i2c_designware.0: Unknown Synopsys component type: 0xffffffff
[  199.672148] i2c_designware i2c_designware.1: Unknown Synopsys component type: 0xffffffff
[  199.705783] usb usb1: root hub lost power or was reset
[  199.705784] usb usb2: root hub lost power or was reset
[  199.938908] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[  200.310988] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[  200.937637] i2c_designware i2c_designware.0: timeout in disabling adapter
[  200.937659] i2c_designware i2c_designware.1: timeout in disabling adapter
[  201.140997] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  201.324108] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  201.507592] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  201.690756] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  201.840742] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[  201.990994] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 27 Octavio 2018-02-27 21:31:17 UTC 
Created attachment 137669 [details]
dmesg log
Comment 28 Octavio 2018-03-06 17:08:02 UTC 
The following test cases have dmesg-warn on CFL QA

igt@drv_suspend@debugfs-reader
igt@drv_suspend@debugfs-reader-hibernat

IGT-Version: 1.21-g68fb759 (x86_64) (Linux: 4.16.0-rc4-drm-intel-qa-ww10-commit-a994c52+ x86_64)

[   46.538739] (elapsed 0.152 seconds) done.
[   46.540187] Suspending console(s) (use no_console_suspend to debug)
[   47.054541] IRQ 142: no longer affine to CPU1
[   47.078452] IRQ 144: no longer affine to CPU2
[   47.078457] IRQ 146: no longer affine to CPU2
[   47.102558] IRQ 134: no longer affine to CPU3
[   47.102566] IRQ 141: no longer affine to CPU3
[   47.126764] IRQ 136: no longer affine to CPU4
[   47.126770] IRQ 138: no longer affine to CPU4
[   47.150357] IRQ 140: no longer affine to CPU5
[   47.178020] IRQ 124: no longer affine to CPU6
[   47.178031] IRQ 139: no longer affine to CPU6
[   47.301317]  cache: parent cpu1 should not be sleeping
[   47.302405]  cache: parent cpu2 should not be sleeping
[   47.303471]  cache: parent cpu3 should not be sleeping
[   47.304564]  cache: parent cpu4 should not be sleeping
[   47.305695]  cache: parent cpu5 should not be sleeping
[   47.306930]  cache: parent cpu6 should not be sleeping
[   47.308105]  cache: parent cpu7 should not be sleeping
[   47.309330]  cache: parent cpu8 should not be sleeping
[   47.310598]  cache: parent cpu9 should not be sleeping
[   47.311930]  cache: parent cpu10 should not be sleeping
[   47.313283]  cache: parent cpu11 should not be sleeping
[   47.993649] atkbd serio0: Failed to deactivate keyboard on isa0060/serio0
[   48.369679] atkbd serio0: Failed to enable keyboard on isa0060/serio0
[   48.596880] done.
[   48.851449] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   49.034770] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   49.218033] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   49.401431] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   49.568111] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
[   49.751431] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 29 Marta Löfstedt 2018-03-12 12:02:04 UTC 
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_3903/fi-cfl-u/igt@drv_suspend@debugfs-reader.html

[  330.361752] [drm:intel_dp_sink_crc [i915]] *ERROR* Panel is unable to calculate any CRC after 6 vblanks
Comment 30 Marta Löfstedt 2018-03-16 08:48:29 UTC 
This was reopend due to CFL-u. However I just discovered this maybe new thing with the:
<7>[   39.903153] [drm:intel_dp_sink_crc_stop [i915]] TIMEOUT: Sink CRC counter is not zeroed after calculation is stopped

ralated to this issue so I will close this again and use bug 105542

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