Bug 107836

Summary:	[CI][BAT] igt@drv_selftest@live_coherency - dmesg-warn - Unclaimed read from register 0x44018
Product:	DRI	Reporter:	Martin Peres <martin.peres>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	CLOSED DUPLICATE	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	normal
Priority:	high	CC:	intel-gfx-bugs
Version:	XOrg git
Hardware:	Other
OS:	All
Whiteboard:	ReadyForDev
i915 platform:	BYT	i915 features:	display/Other, power/Other

Description Martin Peres 2018-09-05 10:30:41 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/IGT_4629/fi-byt-clapper/igt@drv_selftest@live_coherency.html

[  554.428091] Setting dangerous option live_selftests - tainting kernel
[  557.003557] ------------[ cut here ]------------
[  557.003679] Unclaimed read from register 0x44018
[  557.003829] WARNING: CPU: 1 PID: 2594 at drivers/gpu/drm/i915/intel_uncore.c:1093 __unclaimed_reg_debug+0x40/0x50 [i915]
[  557.003834] Modules linked in: i915(+) amdgpu chash gpu_sched ttm snd_hda_codec snd_hwdep snd_hda_core snd_pcm vgem coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel cdc_ether usbnet r8152 mii btusb btrtl btbcm btintel bluetooth ecdh_generic lpc_ich prime_numbers i2c_designware_pci [last unloaded: i915]
[  557.003965] CPU: 1 PID: 2594 Comm: kworker/u4:26 Tainted: G     U            4.19.0-rc2-CI-CI_DRM_4770+ #1
[  557.003970] Hardware name: GOOGLE Clapper/Clapper, BIOS MrChromebox 02/04/2018
[  557.004054] Workqueue: i915 __i915_gem_free_work [i915]
[  557.004146] RIP: 0010:__unclaimed_reg_debug+0x40/0x50 [i915]
[  557.004152] Code: 74 05 5b 5d 41 5c c3 45 84 e4 48 c7 c0 a3 a8 90 a0 48 c7 c6 99 a8 90 a0 48 0f 44 f0 89 ea 48 c7 c7 ac a8 90 a0 e8 d0 72 85 e0 <0f> 0b 83 2d 2f 44 19 00 01 5b 5d 41 5c c3 66 90 41 56 41 55 41 89
[  557.004157] RSP: 0018:ffff880077903e40 EFLAGS: 00010086
[  557.004166] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000010003
[  557.004171] RDX: 0000000080010003 RSI: ffffffff820c3076 RDI: 00000000ffffffff
[  557.004175] RBP: 0000000000044018 R08: 0000000000000000 R09: 0000000000000001
[  557.004180] R10: ffff880077903dd8 R11: 0000000000000000 R12: 0000000000000001
[  557.004185] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000006
[  557.004190] FS:  0000000000000000(0000) GS:ffff880077900000(0000) knlGS:0000000000000000
[  557.004195] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  557.004200] CR2: 00005630aadceef8 CR3: 0000000005210000 CR4: 00000000001006e0
[  557.004204] Call Trace:
[  557.004211]  <IRQ>
[  557.004302]  fwtable_read32+0x1e8/0x250 [i915]
[  557.004386]  valleyview_irq_handler+0x5f/0x260 [i915]
[  557.004405]  __handle_irq_event_percpu+0x41/0x2d0
[  557.004412]  ? handle_irq_event+0x27/0x50
[  557.004424]  handle_irq_event_percpu+0x2b/0x70
[  557.004434]  handle_irq_event+0x2f/0x50
[  557.004442]  handle_edge_irq+0xe7/0x190
[  557.004451]  handle_irq+0x67/0x160
[  557.004464]  do_IRQ+0x5e/0x120
[  557.004475]  common_interrupt+0xf/0xf
[  557.004481]  </IRQ>
[  557.004487] RIP: 0010:_raw_spin_unlock_irqrestore+0x4e/0x60
[  557.004493] Code: c7 02 75 1f 53 9d e8 61 41 82 ff bf 01 00 00 00 e8 67 32 77 ff 65 8b 05 30 58 6d 7e 85 c0 74 0c 5b 5d c3 e8 64 3f 82 ff 53 9d <eb> df e8 b5 22 6c ff 5b 5d c3 0f 1f 84 00 00 00 00 00 53 48 8b 54
[  557.004498] RSP: 0018:ffffc900004b3d30 EFLAGS: 00000206 ORIG_RAX: ffffffffffffffdc
[  557.004507] RAX: ffff880071c5a680 RBX: 0000000000000206 RCX: 0000000000000006
[  557.004512] RDX: 00000000000035f7 RSI: ffffffff82124dc2 RDI: ffffffff820d3a3f
[  557.004516] RBP: ffffffff837244e8 R08: 00000000aaeca722 R09: 0000000000000000
[  557.004521] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88006c3a25c0
[  557.004526] R13: 0000000000000002 R14: 0000000000000002 R15: dead000000000100
[  557.004554]  debug_check_no_obj_freed+0x132/0x210
[  557.004647]  ? __i915_gem_free_objects+0x3ff/0x730 [i915]
[  557.004657]  kmem_cache_free+0x179/0x2e0
[  557.004745]  __i915_gem_free_objects+0x3ff/0x730 [i915]
[  557.004837]  __i915_gem_free_work+0x5a/0x90 [i915]
[  557.004848]  process_one_work+0x245/0x610
[  557.004867]  worker_thread+0x37/0x380
[  557.004878]  ? process_one_work+0x610/0x610
[  557.004884]  kthread+0x119/0x130
[  557.004891]  ? kthread_park+0x80/0x80
[  557.004901]  ret_from_fork+0x3a/0x50
[  557.004926] irq event stamp: 425924
[  557.004932] hardirqs last  enabled at (425923): [<ffffffff8193f66c>] _raw_spin_unlock_irqrestore+0x4c/0x60
[  557.004939] hardirqs last disabled at (425924): [<ffffffff81001910>] trace_hardirqs_off_thunk+0x1a/0x1c
[  557.004946] softirqs last  enabled at (425914): [<ffffffff81c0031d>] __do_softirq+0x31d/0x483
[  557.004953] softirqs last disabled at (425905): [<ffffffff8108c3b9>] irq_exit+0xa9/0xc0
[  557.005041] WARNING: CPU: 1 PID: 2594 at drivers/gpu/drm/i915/intel_uncore.c:1093 __unclaimed_reg_debug+0x40/0x50 [i915]
[  557.005045] ---[ end trace d2d37fc3160b2af7 ]---
[  557.146880] i915: probe of 0000:00:02.0 failed with error -25

Comment 1 Chris Wilson 2018-09-05 10:35:33 UTC

It's the same unhandled *display* interrupt as elsewhere. I believe due to the display not being disabled when i915.disable_display=1 is set.

Comment 2 Chris Wilson 2018-09-05 11:07:08 UTC


*** This bug has been marked as a duplicate of bug 107709 ***

Comment 3 Lakshmi 2018-10-23 12:38:52 UTC

Closed as duplicate.

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