Bug 107709

The system wasn't expecting to get display interrupts with no displays setup (and no display powerwell). That will be mostly due to not disabling the displays for i915.disable_display.

*** Bug 107836 has been marked as a duplicate of this bug. ***

Moved from https://bugs.freedesktop.org/show_bug.cgi?id=107836

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

*** Bug 110843 has been marked as a duplicate of this bug. ***

A CI Bug Log filter associated to this bug has been updated:

{- BSW: igt@drv_selftest@live_evict - dmesg-warn - Unclaimed (write to|read from) register -}
{+ BSW: igt@i915_selftest@live_(evict|reset) - dmesg-warn - Unclaimed (write to|read from) register +}


  No new failures caught with the new filter

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/drm/intel/issues/139.