Bug 111891

Summary:	[CI][SHARDS] aliasing-ppgtt vs userptr - dmesg-warn - WARNING: possible circular locking dependency detected
Product:	DRI	Reporter:	Lakshmi <lakshminarayana.vudum>
Component:	DRM/Intel	Assignee:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Status:	RESOLVED MOVED	QA Contact:	Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity:	major
Priority:	medium	CC:	intel-gfx-bugs
Version:	DRI git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:	BYT, G33, G45, HSW, I945G, ILK, IVB, PNV, SNB	i915 features:	GEM/Other

Description Lakshmi 2019-10-03 11:13:39 UTC

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6988/shard-snb6/igt@gem_exec_basic@gtt-rcs0.html
<4> [45.725639] ======================================================
<4> [45.725642] WARNING: possible circular locking dependency detected
<4> [45.725647] 5.4.0-rc1-CI-CI_DRM_6988+ #1 Tainted: G     U           
<4> [45.725652] ------------------------------------------------------
<4> [45.725657] kworker/u16:6/200 is trying to acquire lock:
<4> [45.725669] ffff888205bd7958 (&mapping->i_mmap_rwsem){++++}, at: unmap_mapping_pages+0x48/0x130
<4> [45.725680] 
but task is already holding lock:
<4> [45.725685] ffff88820d2d93a0 (&vm->mutex){+.+.}, at: i915_vma_unbind+0xe6/0x4a0 [i915]
<4> [45.725764] 
which lock already depends on the new lock.

<4> [45.725769] 
the existing dependency chain (in reverse order) is:
<4> [45.725774] 
-> #2 (&vm->mutex){+.+.}:
<4> [45.725782]        __mutex_lock+0x9a/0x9d0
<4> [45.725843]        i915_vma_remove+0x53/0x250 [i915]
<4> [45.725904]        i915_vma_unbind+0x19c/0x4a0 [i915]
<4> [45.725965]        i915_gem_object_unbind+0x153/0x1c0 [i915]
<4> [45.726025]        userptr_mn_invalidate_range_start+0x9f/0x200 [i915]
<4> [45.726033]        __mmu_notifier_invalidate_range_start+0xa3/0x180
<4> [45.726039]        unmap_vmas+0x143/0x150
<4> [45.726044]        unmap_region+0xa3/0x100
<4> [45.726049]        __do_munmap+0x25d/0x490
<4> [45.726053]        __vm_munmap+0x6e/0xc0
<4> [45.726058]        __x64_sys_munmap+0x12/0x20
<4> [45.726063]        do_syscall_64+0x4f/0x210
<4> [45.726069]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [45.726073] 
-> #1 (mmu_notifier_invalidate_range_start){+.+.}:
<4> [45.726082]        page_mkclean_one+0xda/0x210
<4> [45.726087]        rmap_walk_file+0xff/0x260
<4> [45.726092]        page_mkclean+0x9f/0xb0
<4> [45.726097]        clear_page_dirty_for_io+0xa2/0x300
<4> [45.726103]        mpage_submit_page+0x1a/0x70
<4> [45.726108]        mpage_process_page_bufs+0xe7/0x110
<4> [45.726113]        mpage_prepare_extent_to_map+0x1d2/0x2b0
<4> [45.726119]        ext4_writepages+0x592/0x1230
<4> [45.726124]        do_writepages+0x46/0xe0
<4> [45.726130]        __filemap_fdatawrite_range+0xc6/0x100
<4> [45.726135]        file_write_and_wait_range+0x3c/0x90
<4> [45.726140]        ext4_sync_file+0x154/0x500
<4> [45.726146]        do_fsync+0x33/0x60
<4> [45.726150]        __x64_sys_fsync+0xb/0x10
<4> [45.726155]        do_syscall_64+0x4f/0x210
<4> [45.726160]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [45.726164] 
-> #0 (&mapping->i_mmap_rwsem){++++}:
<4> [45.726173]        __lock_acquire+0x1328/0x15d0
<4> [45.726178]        lock_acquire+0xa7/0x1c0
<4> [45.726183]        down_write+0x33/0x70
<4> [45.726188]        unmap_mapping_pages+0x48/0x130
<4> [45.726250]        i915_vma_revoke_mmap+0x81/0x1b0 [i915]
<4> [45.726312]        i915_vma_unbind+0xee/0x4a0 [i915]
<4> [45.726374]        i915_vma_destroy+0x31/0x2f0 [i915]
<4> [45.726431]        __i915_gem_free_objects+0xb8/0x4b0 [i915]
<4> [45.726438]        process_one_work+0x26a/0x620
<4> [45.726442]        worker_thread+0x37/0x380
<4> [45.726448]        kthread+0x119/0x130
<4> [45.726452]        ret_from_fork+0x3a/0x50
<4> [45.726456] 
other info that might help us debug this:

<4> [45.726463] Chain exists of:
  &mapping->i_mmap_rwsem --> mmu_notifier_invalidate_range_start --> &vm->mutex

<4> [45.726474]  Possible unsafe locking scenario:

<4> [45.726479]        CPU0                    CPU1
<4> [45.726483]        ----                    ----
<4> [45.726487]   lock(&vm->mutex);
<4> [45.726498]                                lock(mmu_notifier_invalidate_range_start);
<4> [45.726505]                                lock(&vm->mutex);
<4> [45.726510]   lock(&mapping->i_mmap_rwsem);
<4> [45.726514] 
 *** DEADLOCK ***

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6992/shard-snb1/igt@gem_mmap_gtt@basic-small-copy.html
<4> [33.386129] ======================================================
<4> [33.386132] WARNING: possible circular locking dependency detected
<4> [33.386135] 5.4.0-rc1-CI-CI_DRM_6992+ #1 Tainted: G     U           
<4> [33.386138] ------------------------------------------------------
<4> [33.386141] kworker/u16:3/197 is trying to acquire lock:
<4> [33.386143] ffff8882034802d8 (&mapping->i_mmap_rwsem){++++}, at: unmap_mapping_pages+0x48/0x130
<4> [33.386153] 
but task is already holding lock:
<4> [33.386155] ffff8882155793a0 (&vm->mutex){+.+.}, at: i915_vma_unbind+0xe6/0x4a0 [i915]
<4> [33.386214] 
which lock already depends on the new lock.

<4> [33.386217] 
the existing dependency chain (in reverse order) is:
<4> [33.386220] 
-> #2 (&vm->mutex){+.+.}:
<4> [33.386225]        __mutex_lock+0x9a/0x9d0
<4> [33.386266]        i915_vma_remove+0x53/0x250 [i915]
<4> [33.386306]        i915_vma_unbind+0x19c/0x4a0 [i915]
<4> [33.386346]        i915_gem_object_unbind+0x153/0x1c0 [i915]
<4> [33.386383]        userptr_mn_invalidate_range_start+0x9f/0x200 [i915]
<4> [33.386388]        __mmu_notifier_invalidate_range_start+0xa3/0x180
<4> [33.386391]        unmap_vmas+0x143/0x150
<4> [33.386394]        unmap_region+0xa3/0x100
<4> [33.386397]        __do_munmap+0x25d/0x490
<4> [33.386399]        __vm_munmap+0x6e/0xc0
<4> [33.386402]        __x64_sys_munmap+0x12/0x20
<4> [33.386405]        do_syscall_64+0x4f/0x210
<4> [33.386409]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [33.386411] 
-> #1 (mmu_notifier_invalidate_range_start){+.+.}:
<4> [33.386416]        page_mkclean_one+0xda/0x210
<4> [33.386419]        rmap_walk_file+0xff/0x260
<4> [33.386422]        page_mkclean+0x9f/0xb0
<4> [33.386425]        clear_page_dirty_for_io+0xa2/0x300
<4> [33.386429]        mpage_submit_page+0x1a/0x70
<4> [33.386432]        mpage_process_page_bufs+0xe7/0x110
<4> [33.386435]        mpage_prepare_extent_to_map+0x1d2/0x2b0
<4> [33.386438]        ext4_writepages+0x592/0x1230
<4> [33.386441]        do_writepages+0x46/0xe0
<4> [33.386444]        __filemap_fdatawrite_range+0xc6/0x100
<4> [33.386448]        file_write_and_wait_range+0x3c/0x90
<4> [33.386450]        ext4_sync_file+0x154/0x500
<4> [33.386454]        do_fsync+0x33/0x60
<4> [33.386457]        __x64_sys_fsync+0xb/0x10
<4> [33.386459]        do_syscall_64+0x4f/0x210
<4> [33.386462]        entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4> [33.386465] 
-> #0 (&mapping->i_mmap_rwsem){++++}:
<4> [33.386470]        __lock_acquire+0x1328/0x15d0
<4> [33.386473]        lock_acquire+0xa7/0x1c0
<4> [33.386476]        down_write+0x33/0x70
<4> [33.386479]        unmap_mapping_pages+0x48/0x130
<4> [33.386518]        i915_vma_revoke_mmap+0x81/0x1b0 [i915]
<4> [33.386558]        i915_vma_unbind+0xee/0x4a0 [i915]
<4> [33.386597]        i915_vma_destroy+0x31/0x2f0 [i915]
<4> [33.386633]        __i915_gem_free_objects+0xb8/0x4b0 [i915]
<4> [33.386637]        process_one_work+0x26a/0x620
<4> [33.386639]        worker_thread+0x37/0x380
<4> [33.386642]        kthread+0x119/0x130
<4> [33.386645]        ret_from_fork+0x3a/0x50
<4> [33.386647] 
other info that might help us debug this:

<4> [33.386651] Chain exists of:
  &mapping->i_mmap_rwsem --> mmu_notifier_invalidate_range_start --> &vm->mutex

<4> [33.386657]  Possible unsafe locking scenario:

<4> [33.386660]        CPU0                    CPU1
<4> [33.386662]        ----                    ----
<4> [33.386664]   lock(&vm->mutex);
<4> [33.386666]                                lock(mmu_notifier_invalidate_range_start);
<4> [33.386671]                                lock(&vm->mutex);
<4> [33.386674]   lock(&mapping->i_mmap_rwsem);
<4> [33.386676] 
 *** DEADLOCK ***

Comment 1 CI Bug Log 2019-10-03 11:14:40 UTC

The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected
  - https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5209/shard-snb5/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6987/shard-snb2/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14624/shard-snb6/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6988/shard-snb6/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14626/shard-snb2/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6989/shard-snb1/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6990/shard-snb5/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6991/shard-snb7/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14628/shard-snb1/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14631/shard-snb7/igt@gem_exec_basic@gtt-rcs0.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6992/shard-snb1/igt@gem_mmap_gtt@basic-small-copy.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_14637/shard-snb5/igt@gem_mmap_gtt@basic-small-copy.html

Comment 2 Chris Wilson 2019-10-03 11:16:17 UTC

This one is particularly nasty here due to the inclusive of the ggtt->mutex from using the aliasing-ppgtt. That means we cannot simply break the cycle by removing struct_mutex and then only using full-ppgtt vma for userptr.

Comment 3 Chris Wilson 2019-10-03 11:19:51 UTC

*** Bug 111892 has been marked as a duplicate of this bug. ***

Comment 4 CI Bug Log 2019-10-04 07:11:53 UTC

The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* HSW: igt@kms_flip@2x-flip-vs-panning - dmesg-warn - WARNING: possible circular locking dependency detected
  (No new failures associated)

Comment 5 CI Bug Log 2019-10-04 07:28:29 UTC

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

{- HSW: igt@kms_flip@2x-flip-vs-panning - dmesg-warn - WARNING: possible circular locking dependency detected -}
{+ HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6996/shard-hsw6/igt@gem_mmap_gtt@basic-small-copy.html

Comment 6 Chris Wilson 2019-10-04 16:10:00 UTC

Note while the full-ppgtt lockdep was fixed by

commit 2850748ef8763ab46958e43a4d1c445f29eeb37d
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Fri Oct 4 14:39:58 2019 +0100

    drm/i915: Pull i915_vma_pin under the vm->mutex

here with the aliasing-ppgtt conflating with the ggtt->mutex, it is not so simple.

Comment 7 Francesco Balestrieri 2019-10-10 06:12:14 UTC

Happened in 20% of the runs, looks like a major issue.

Comment 8 CI Bug Log 2019-10-21 11:00:37 UTC

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

{- HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected -}
{+ HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected +}


  No new failures caught with the new filter

Comment 9 CI Bug Log 2019-10-24 05:35:54 UTC

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

{- HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected -}
{+ HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7159/shard-hsw5/igt@kms_flip@2x-plain-flip-interruptible.html

Comment 10 CI Bug Log 2019-10-24 06:16:39 UTC

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

{- SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected -}
{+ SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5236/shard-snb1/igt@kms_cursor_crc@pipe-a-cursor-dpms.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7159/shard-snb1/igt@kms_cursor_crc@pipe-a-cursor-dpms.html

Comment 11 CI Bug Log 2019-10-24 10:16:52 UTC

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

{- SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind -}
{+ SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7160/shard-snb7/igt@kms_cursor_crc@pipe-a-cursor-dpms.html

Comment 12 CI Bug Log 2019-10-28 16:24:04 UTC

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

{- SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind -}
{+ BLB PNV BYT SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_393/fi-blb-e6850/igt@kms_cursor_crc@pipe-a-cursor-size-change.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_393/fi-byt-n2820/igt@kms_cursor_crc@pipe-a-cursor-size-change.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_393/fi-pnv-d510/igt@kms_cursor_crc@pipe-a-cursor-size-change.html

Comment 13 CI Bug Log 2019-11-06 08:54:39 UTC

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

{- BLB PNV BYT SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind -}
{+ BLB PNV BYT SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5263/shard-hsw2/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html

Comment 14 CI Bug Log 2019-11-11 12:22:15 UTC

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

{- HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected -}
{+ HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at: unmap_mapping_pages, holding lock at: i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5266/shard-hsw6/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7286/shard-hsw6/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7287/shard-hsw4/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7288/shard-hsw4/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7289/shard-hsw6/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7290/shard-hsw6/igt@kms_draw_crc@fill-fb.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7291/shard-hsw5/igt@kms_draw_crc@fill-fb.html

Comment 15 CI Bug Log 2019-11-11 12:23:08 UTC

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

{- HSW: igt@kms_flip@2x-flip-vs-panning|igt@gem_mmap_gtt@basic-small-copy - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at: unmap_mapping_pages, holding lock at: i915_vma_unbind -}
{+ HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at: unmap_mapping_pages, holding lock at: i915_vma_unbind +}


  No new failures caught with the new filter

Comment 16 CI Bug Log 2019-11-13 12:31:31 UTC

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

{- BLB PNV BYT SNB: igt@gem_mmap_gtt@basic-small-copy|igt@gem_exec_basic@gtt-rcs0| - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy/i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-ilk-650/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-ivb-3770/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-blb-e6850/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-byt-j1900/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-byt-n2820/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-elk-e7500/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-gdg-551/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-hsw-4770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-hsw-4770r/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-hsw-peppy/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-ilk-650/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-ivb-3770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-pnv-d510/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-snb-2600/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-blb-e6850/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-byt-j1900/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-byt-n2820/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-elk-e7500/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-gdg-551/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-hsw-4770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-hsw-peppy/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-ilk-650/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-ivb-3770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-pnv-d510/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-snb-2600/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-blb-e6850/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-byt-j1900/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-byt-n2820/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-elk-e7500/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-gdg-551/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-hsw-4770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-hsw-4770r/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-hsw-peppy/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-ilk-650/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-ivb-3770/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-pnv-d510/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-snb-2600/igt@gem_exec_reloc@basic-gtt-wc.html

Comment 17 CI Bug Log 2019-11-14 08:34:51 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-blb-e6850/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-elk-e7500/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-pnv-d510/igt@kms_cursor_legacy@flip-vs-cursor-busy-crc-legacy.html

Comment 18 CI Bug Log 2019-11-14 09:55:38 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_400/fi-snb-2520m/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_401/fi-snb-2520m/igt@gem_exec_reloc@basic-gtt-wc.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_402/fi-snb-2520m/igt@gem_exec_reloc@basic-gtt-wc.html

Comment 19 CI Bug Log 2019-11-14 11:27:40 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_398/fi-snb-2520m/igt@kms_busy@extended-modeset-hang-newfb-with-reset-render-b.html

Comment 20 CI Bug Log 2019-11-15 07:55:46 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5278/shard-snb1/igt@kms_pipe_crc_basic@nonblocking-crc-pipe-a-frame-sequence.html

Comment 21 CI Bug Log 2019-11-18 07:25:46 UTC

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

{- HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at: unmap_mapping_pages, holding lock at: i915_vma_unbind -}
{+ HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at: unmap_mapping_pages, holding lock at: i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5281/shard-hsw6/igt@testdisplay.html

Comment 22 CI Bug Log 2019-11-18 09:04:46 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-byt-j1900/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-byt-n2820/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-4770/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-4770r/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-peppy/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-ilk-650/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-ivb-3770/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-snb-2520m/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-snb-2600/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/IGT_5289/shard-snb2/igt@kms_draw_crc@draw-method-rgb565-pwrite-xtiled.html

Comment 23 CI Bug Log 2019-11-20 15:07:52 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-byt-j1900/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-byt-n2820/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-elk-e7500/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-4770/igt@kms_vblank@pipe-c-accuracy-idle.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-4770r/igt@kms_vblank@pipe-c-accuracy-idle.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-hsw-peppy/igt@kms_vblank@pipe-c-accuracy-idle.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-ilk-650/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-ivb-3770/igt@kms_vblank@pipe-c-accuracy-idle.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-snb-2520m/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_405/fi-snb-2600/igt@kms_draw_crc@draw-method-xrgb2101010-pwrite-untiled.html

Comment 24 CI Bug Log 2019-11-27 12:08:50 UTC

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

{- BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind -}
{+ BLB GDG PNV ELK ILK SNB BYT IVB HSW: Random tests - dmesg-warn - WARNING: possible circular locking dependency detected, acquire lock at unmap_mapping_pages, holding lock: i915_vma_destroy|i915_vma_unbind +}

New failures caught by the filter:

  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-blb-e6850/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-byt-j1900/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-byt-n2820/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-gdg-551/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-hsw-4770/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-hsw-4770r/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-ilk-650/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-ivb-3770/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-pnv-d510/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-snb-2520m/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html
  * https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_408/fi-snb-2600/igt@kms_cursor_crc@pipe-b-cursor-256x256-offscreen.html

Comment 25 Martin Peres 2019-11-29 19:37:20 UTC

-- 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/478.

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