Bug 112064 - [CI][BAT] igt@gem_ctx_create@basic-files - dmesg-warn - BUG i915_vma (Tainted: .*): Poison overwritten
Summary: [CI][BAT] igt@gem_ctx_create@basic-files - dmesg-warn - BUG i915_vma (Tainted...
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: DRI git
Hardware: Other All
: medium normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2019-10-18 13:04 UTC by Lakshmi
Modified: 2019-11-11 10:44 UTC (History)
1 user (show)

See Also:
i915 platform: BDW
i915 features: GEM/Other


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Description Lakshmi 2019-10-18 13:04:21 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7114/fi-bdw-gvtdvm/igt@gem_ctx_create@basic-files.html
3> [70.841113] BUG i915_vma (Tainted: G     UD W        ): Poison overwritten
<3> [70.850059] INFO: Allocated in i915_vma_instance+0xc0/0x920 [i915] age=28723 cpu=0 pid=1027
<3> [70.858169] 	i915_vma_instance+0xc0/0x920 [i915]
<3> [70.865164] 	i915_gem_do_execbuffer+0x607/0x2410 [i915]
<3> [70.865750] 	i915_gem_execbuffer2_ioctl+0x11b/0x460 [i915]
<3> [70.866243] 	drm_ioctl_kernel+0xa7/0xf0
<3> [70.866734] 	drm_ioctl+0x2e1/0x390
<3> [70.878132] INFO: Freed in i915_vma_parked+0xb6/0x1e0 [i915] age=26837 cpu=0 pid=12
<3> [70.887152] 	i915_vma_parked+0xb6/0x1e0 [i915]
<3> [70.897718] 	____intel_wakeref_put_last+0x1c/0x70 [i915]
<4> [71.188028] Workqueue: events __intel_wakeref_put_work [i915]
<4> [71.190894]  ? i915_vma_parked+0xb6/0x1e0 [i915]
<4> [71.191901]  i915_vma_parked+0xb6/0x1e0 [i915]
<4> [71.194331]  ____intel_wakeref_put_last+0x1c/0x70 [i915]
<3> [71.235091] FIX i915_vma: Restoring 0x0000000065fccabf-0x0000000065fccabf=0x6b
Comment 1 CI Bug Log 2019-10-18 13:05:11 UTC
The CI Bug Log issue associated to this bug has been updated.

### New filters associated

* BDW: igt@gem_ctx_create@basic-files - dmesg-warn - BUG i915_vma (Tainted: .*): Poison overwritten
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7114/fi-bdw-gvtdvm/igt@gem_ctx_create@basic-files.html
  - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_7115/fi-bdw-gvtdvm/igt@gem_ctx_create@basic-files.html
Comment 2 Chris Wilson 2019-10-18 14:19:28 UTC
<3> [70.835825] =============================================================================
<3> [70.841113] BUG i915_vma (Tainted: G     UD W        ): Poison overwritten
<3> [70.841639] -----------------------------------------------------------------------------

<3> [70.849112] INFO: 0x0000000065fccabf-0x0000000065fccabf. First byte 0x6c instead of 0x6b
<3> [70.850059] INFO: Allocated in i915_vma_instance+0xc0/0x920 [i915] age=28723 cpu=0 pid=1027
<3> [70.857115] 	__slab_alloc.isra.84.constprop.89+0x3d/0x70
<3> [70.857652] 	kmem_cache_alloc+0x24a/0x2a0
<3> [70.858169] 	i915_vma_instance+0xc0/0x920 [i915]
<3> [70.858720] 	eb_lookup_vmas+0x7f0/0x1200 [i915]
<3> [70.865164] 	i915_gem_do_execbuffer+0x607/0x2410 [i915]
<3> [70.865750] 	i915_gem_execbuffer2_ioctl+0x11b/0x460 [i915]
<3> [70.866243] 	drm_ioctl_kernel+0xa7/0xf0
<3> [70.866734] 	drm_ioctl+0x2e1/0x390
<3> [70.875090] 	do_vfs_ioctl+0xa0/0x6f0
<3> [70.875549] 	ksys_ioctl+0x35/0x60
<3> [70.876026] 	__x64_sys_ioctl+0x11/0x20
<3> [70.877113] 	do_syscall_64+0x4f/0x210
<3> [70.877562] 	entry_SYSCALL_64_after_hwframe+0x49/0xbe
<3> [70.878132] INFO: Freed in i915_vma_parked+0xb6/0x1e0 [i915] age=26837 cpu=0 pid=12
<3> [70.879024] 	kmem_cache_free+0x31f/0x390
<3> [70.887152] 	i915_vma_parked+0xb6/0x1e0 [i915]
<3> [70.887724] 	pm_notifier+0x12/0x20 [i915]
<3> [70.888224] 	notifier_call_chain+0x34/0x90
<3> [70.888708] 	blocking_notifier_call_chain+0x3f/0x60
<3> [70.897161] 	__gt_park+0x53/0x100 [i915]
<3> [70.897718] 	____intel_wakeref_put_last+0x1c/0x70 [i915]
<3> [70.898209] 	process_one_work+0x26a/0x620
<3> [70.898682] 	worker_thread+0x37/0x380
<3> [70.905115] 	kthread+0x119/0x130
<3> [70.905569] 	ret_from_fork+0x3a/0x50
<3> [70.906054] INFO: Slab 0x00000000f96dca72 objects=12 used=0 fp=0x00000000db470fe4 flags=0x4000000000010200
<3> [70.912391] INFO: Object 0x0000000010776417 @offset=1408 fp=0x00000000e2b48cb9

<3> [70.919092] Redzone 00000000: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
<3> [70.920029] Redzone 00000010: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
<3> [70.927090] Redzone 00000020: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
<3> [70.927984] Redzone 00000030: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................
<3> [70.933110] Object 00000000: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.939098] Object 00000010: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.939959] Object 00000020: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.945108] Object 00000030: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.946002] Object 00000040: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.955090] Object 00000050: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.955961] Object 00000060: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.961602] Object 00000070: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.964106] Object 00000080: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.965011] Object 00000090: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.972802] Object 000000a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.975089] Object 000000b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.975968] Object 000000c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.983088] Object 000000d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.987089] Object 000000e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.987960] Object 000000f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.995090] Object 00000100: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [70.995969] Object 00000110: 6b 6b 6b 6b 6b 6b 6b 6b 6c 6b 6b 6b 6b 6b 6b 6b  kkkkkkkklkkkkkkk
<3> [70.999965] Object 00000120: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.007089] Object 00000130: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.007969] Object 00000140: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.013116] Object 00000150: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.014003] Object 00000160: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.016694] Object 00000170: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.023097] Object 00000180: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.023996] Object 00000190: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.029113] Object 000001a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.029971] Object 000001b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.037130] Object 000001c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.040627] Object 000001d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.045113] Object 000001e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.046011] Object 000001f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.055092] Object 00000200: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.055993] Object 00000210: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.060358] Object 00000220: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.063099] Object 00000230: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.063947] Object 00000240: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.071090] Object 00000250: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.071985] Object 00000260: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.079090] Object 00000270: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.079976] Object 00000280: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.085111] Object 00000290: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.088108] Object 000002a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.089006] Object 000002b0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.099088] Object 000002c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.100192] Object 000002d0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.105113] Object 000002e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.106006] Object 000002f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.109856] Object 00000300: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.110755] Object 00000310: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.119097] Object 00000320: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.119968] Object 00000330: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.127089] Object 00000340: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.127963] Object 00000350: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.133117] Object 00000360: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.134015] Object 00000370: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3> [71.141021] Object 00000380: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  kkkkkkkkkkkkkkk.
<3> [71.144106] Redzone 00000000: bb bb bb bb bb bb bb bb                          ........
<3> [71.144980] Padding 00000000: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
<3> [71.153115] Padding 00000010: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
<3> [71.182106] Padding 00000020: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a  ZZZZZZZZZZZZZZZZ
Comment 3 Chris Wilson 2019-10-18 14:24:11 UTC
The second read returned the right result. So either somebody flipped a bit then dropped it at the same time as it was dumped, or the read failed. BIT(2). That's been flipped before. Not a bit off-hand I think we are currently flipping around i915_vma -- in the flags that would be the pin_count, which does not or in BIT(2).
Comment 4 Francesco Balestrieri 2019-11-11 10:44:57 UTC
Last seen 3 weeks ago, only 4 occurrences so far. Setting medium importance and let's keep watching.


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