Bug 108930 - [CI][BAT] igt@runner@aborted - fail - BUG kmalloc-4k (Tainted: G U ): Poison overwritten after igt@gem_flink_basic@bad-open
Summary: [CI][BAT] igt@runner@aborted - fail - BUG kmalloc-4k (Tainted: G U ...
Status: NEW
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Intel (show other bugs)
Version: XOrg git
Hardware: Other All
: highest normal
Assignee: Intel GFX Bugs mailing list
QA Contact: Intel GFX Bugs mailing list
URL:
Whiteboard: ReadyForDev
Keywords:
Depends on:
Blocks:
 
Reported: 2018-12-03 16:48 UTC by Martin Peres
Modified: 2018-12-03 17:01 UTC (History)
1 user (show)

See Also:
i915 platform: BSW/CHT
i915 features: power/suspend-resume


Attachments
Dmesg logs (147.27 KB, text/x-log)
2018-12-03 16:50 UTC, Martin Peres
no flags Details

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Description Martin Peres 2018-12-03 16:48:10 UTC
https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_5186_70/fi-bsw-kefka/igt%40runner%40aborted.html

Aborting.
Previous test: gem_flink_basic (bad-open)
Next test: gem_flink_basic (basic)

Kernel tainted (0x60 -- 20)

<3>[  161.275655] =============================================================================
<3>[  161.275662] BUG kmalloc-4k (Tainted: G     U           ): Poison overwritten
<3>[  161.275665] -----------------------------------------------------------------------------

<4>[  161.275668] Disabling lock debugging due to kernel taint
<3>[  161.275673] INFO: 0x00000000ffc016ce-0x0000000029190cf1. First byte 0x56 instead of 0x6b
<3>[  161.275682] INFO: Allocated in __alloc_skb+0x72/0x1b0 age=3325 cpu=0 pid=2310
<3>[  161.275687] 	__kmalloc_track_caller+0x29c/0x2e0
<3>[  161.275690] 	__kmalloc_reserve.isra.9+0x24/0x70
<3>[  161.275693] 	__alloc_skb+0x72/0x1b0
<3>[  161.275695] 	__netdev_alloc_skb+0x35/0x110
<3>[  161.275703] 	rx_submit+0x3d/0x2e0 [usbnet]
<3>[  161.275707] 	rx_alloc_submit+0x3b/0x60 [usbnet]
<3>[  161.275710] 	usbnet_resume+0x246/0x24b [usbnet]
<3>[  161.275715] 	usb_resume_interface.isra.1+0x8c/0xf0
<3>[  161.275717] 	usb_resume_both+0xe1/0x130
<3>[  161.275720] 	usb_resume+0x11/0x60
<3>[  161.275723] 	dpm_run_callback+0x64/0x280
<3>[  161.275726] 	device_resume+0xb3/0x1e0
<3>[  161.275728] 	async_resume+0x14/0x40
<3>[  161.275731] 	async_run_entry_fn+0x34/0x160
<3>[  161.275734] 	process_one_work+0x262/0x630
<3>[  161.275736] 	worker_thread+0x37/0x380
<3>[  161.275740] INFO: Freed in consume_skb+0x3d/0x120 age=3243 cpu=1 pid=287
<3>[  161.275744] 	usbnet_bh+0xb9/0x2b0 [usbnet]
<3>[  161.275747] 	tasklet_action_common.isra.4+0x47/0xb0
<3>[  161.275750] 	__do_softirq+0xd8/0x4b9
<3>[  161.275752] 	irq_exit+0xa9/0xc0
<3>[  161.275754] 	do_IRQ+0x9a/0x130
<3>[  161.275756] 	ret_from_intr+0x0/0x1d
<3>[  161.275759] 	_raw_spin_unlock_irqrestore+0x4e/0x60
<3>[  161.275761] 	usb_hcd_unlink_urb+0x60/0xf0
<3>[  161.275765] 	unlink_urbs.isra.5+0x88/0xd0 [usbnet]
<3>[  161.275768] 	__handle_link_change.part.7+0x52/0x60 [usbnet]
<3>[  161.275772] 	usbnet_deferred_kevent+0x2bd/0x370 [usbnet]
<3>[  161.275774] 	process_one_work+0x262/0x630
<3>[  161.275776] 	worker_thread+0x37/0x380
<3>[  161.275779] 	kthread+0x119/0x130
<3>[  161.275781] 	ret_from_fork+0x3a/0x50
<3>[  161.275784] INFO: Slab 0x00000000d59c1dca objects=7 used=7 fp=0x          (null) flags=0x8000000000010200
<3>[  161.275786] INFO: Object 0x00000000579237e1 @offset=22168 fp=0x          (null)

<3>[  161.275790] Redzone 000000009457227f: bb bb bb bb bb bb bb bb                          ........
<3>[  161.275792] Object 00000000579237e1: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275794] Object 00000000bab83756: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275795] Object 0000000088930b2c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275797] Object 00000000a768ace0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275799] Object 00000000ffc016ce: 56 01 a9 fe 00 50 b6 ca 22 31 68 05 ca 2f 15 dd  V....P.."1h../..
<3>[  161.275801] Object 000000001540fd0a: 08 00 45 10 01 48 00 00 00 00 80 11 b6 15 c0 a8  ..E..H..........
<3>[  161.275803] Object 00000000fd8d8829: 01 01 c0 a8 01 2e 00 43 00 44 01 34 7a 1c 02 01  .......C.D.4z...
<3>[  161.275805] Object 00000000e50136d1: 06 00 7d 17 b3 67 00 00 00 00 00 00 00 00 c0 a8  ..}..g..........
<3>[  161.275807] Object 00000000009ae7d4: 01 2e 00 00 00 00 00 00 00 00 00 50 b6 ca 22 31  ...........P.."1
<3>[  161.275809] Object 000000006c041d46: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275810] Object 0000000041da0e5a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275812] Object 0000000045c74742: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275814] Object 000000006fe4dc4d: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275816] Object 00000000123c9c34: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275818] Object 000000002b77b95c: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275820] Object 00000000cdf7c1bc: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275821] Object 00000000d434b83a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275823] Object 00000000abf24680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275825] Object 000000008921c484: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275827] Object 0000000032a581f5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275829] Object 00000000458585ac: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>[  161.275831] Object 000000002db85c08: 00 00 00 00 00 00 00 00 00 00 63 82 53 63 35 01  ..........c.Sc5.
<3>[  161.275833] Object 0000000031bc2a41: 05 36 04 c0 a8 01 01 33 04 00 00 0e 10 01 04 ff  .6.....3........
<3>[  161.275834] Object 000000000b324c48: ff ff 00 03 04 c0 a8 01 01 0f 0c 66 69 2e 69 6e  ...........fi.in
<3>[  161.275836] Object 0000000008db29d1: 74 65 6c 2e 63 6f 6d 06 0c 0a f8 02 01 a3 21 fd  tel.com.......!.
<3>[  161.275838] Object 00000000db70f744: 4c 0a b8 09 09 ff 00 00 00 00 6b 6b 6b 6b 6b 6b  L.........kkkkkk
<3>[  161.275840] Object 00000000d32ce784: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275842] Object 00000000fc385f2d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275844] Object 0000000038f0deca: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275846] Object 000000003dcc414a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275847] Object 0000000085f190cb: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275849] Object 0000000059dd6ebe: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275851] Object 000000000d43a2f4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275853] Object 000000009960c6e8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275855] Object 000000008602acae: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275857] Object 000000009940ea34: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275858] Object 00000000d30274aa: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275860] Object 000000003baba94e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275862] Object 00000000e39f1ada: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275864] Object 000000009aa13e70: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275866] Object 0000000000ea75ae: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275868] Object 00000000f97fe5e2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275869] Object 000000008693c53d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275871] Object 00000000c746010b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275873] Object 00000000556f7d27: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275875] Object 00000000fe9729bf: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275877] Object 0000000090fc1941: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275879] Object 0000000024a8b8d8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275880] Object 000000007dcecaea: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275882] Object 00000000a5d63fa0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275884] Object 0000000060fd4830: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275886] Object 0000000071d449bb: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275888] Object 00000000d1399de3: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275890] Object 000000008fe57e0d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275892] Object 000000003e56c1c0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275893] Object 00000000c62d5402: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275895] Object 00000000c261e5f0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275897] Object 0000000066980a9c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275899] Object 0000000027ca8d28: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275901] Object 00000000764a4f7d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275903] Object 0000000082911fb5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275904] Object 000000009e9292a7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275906] Object 00000000454a7ea7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275908] Object 00000000530a41ce: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275910] Object 00000000427cd363: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275912] Object 000000007f56b8e5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275914] Object 00000000543612f7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275915] Object 000000006bbd05e0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275917] Object 00000000f25bb1da: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275919] Object 00000000b3b44c8f: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275921] Object 00000000c47d6261: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275923] Object 00000000154a081e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275925] Object 0000000003aad8d7: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275926] Object 00000000de5f0179: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275928] Object 000000003004ac4d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275930] Object 000000008642926d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275932] Object 00000000b4e4cb9f: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275934] Object 00000000ec3f2b7a: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275936] Object 00000000cb76d894: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275937] Object 000000006e3e41a2: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275939] Object 0000000007fd8f45: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275941] Object 000000007b420a55: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275943] Object 00000000051b8ff5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275945] Object 00000000238490e5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275947] Object 000000003cd280c8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275948] Object 00000000317db216: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275950] Object 00000000d2a1b198: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275952] Object 00000000cf56a9be: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275954] Object 000000005b08c554: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275956] Object 00000000d762d9d5: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275958] Object 00000000aa86e819: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275960] Object 00000000465602dd: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275961] Object 0000000003279374: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275963] Object 000000004677c00c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275965] Object 000000001e5de356: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275967] Object 000000004f4e929e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275969] Object 000000002936a6e4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275971] Object 00000000b5340dc4: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275972] Object 00000000862a44db: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275974] Object 00000000f2c69b97: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275976] Object 00000000461f60d9: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275978] Object 0000000065bbcfdb: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275980] Object 00000000689e502d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275982] Object 00000000e135f730: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275983] Object 0000000005b07db3: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275985] Object 000000001c04010c: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275987] Object 000000000cc9f8b9: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275989] Object 0000000082540ae6: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275991] Object 00000000c6c77017: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275993] Object 000000000af385ca: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275994] Object 00000000cfce3cee: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.275996] Object 0000000098e83742: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
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<3>[  161.276243] Object 00000000b1a814de: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276245] Object 00000000a42d036d: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276247] Object 00000000dcf9edf0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276248] Object 0000000087d41867: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276250] Object 00000000972351a0: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276252] Object 000000005ba2640b: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276254] Object 00000000b034f0ea: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276256] Object 00000000d6cb9cad: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276258] Object 0000000035ca12d3: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276259] Object 000000006979fbb8: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b  kkkkkkkkkkkkkkkk
<3>[  161.276261] Object 000000000878057e: 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  kkkkkkkkkkkkkkk.
<3>[  161.276263] Redzone 00000000494c651c: bb bb bb bb bb bb bb bb                          ........
<3>[  161.276265] Padding 00000000c30f7324: 5a 5a 5a 5a 5a 5a 5a 5a                          ZZZZZZZZ
<4>[  161.276269] CPU: 0 PID: 2353 Comm: gem_flink_basic Tainted: G    BU            4.20.0-rc3-g890ed44fe261-repeat_15+ #1
<4>[  161.276271] Hardware name: GOOGLE Kefka/Kefka, BIOS MrChromebox 02/04/2018
<4>[  161.276273] Call Trace:
<4>[  161.276280]  dump_stack+0x67/0x9b
<4>[  161.276285]  check_bytes_and_report+0xbd/0x100
<4>[  161.276290]  check_object+0x22a/0x270
<4>[  161.276295]  ? vc_do_resize+0xca/0x640
<4>[  161.276298]  alloc_debug_processing+0x17a/0x190
<4>[  161.276303]  ___slab_alloc.constprop.34+0x355/0x380
<4>[  161.276305]  ? vc_do_resize+0xca/0x640
<4>[  161.276312]  ? vc_do_resize+0xca/0x640
<4>[  161.276315]  ? vc_do_resize+0xca/0x640
<4>[  161.276317]  ? __slab_alloc.isra.27.constprop.33+0x3d/0x70
<4>[  161.276320]  __slab_alloc.isra.27.constprop.33+0x3d/0x70
<4>[  161.276324]  __kmalloc+0x29f/0x2e0
<4>[  161.276329]  vc_do_resize+0xca/0x640
<4>[  161.276336]  ? visual_init+0x75/0x120
<4>[  161.276341]  visual_init+0xc9/0x120
<4>[  161.276344]  do_bind_con_driver+0x1f2/0x410
<4>[  161.276351]  do_unbind_con_driver+0x141/0x240
<4>[  161.276358]  store_bind+0xad/0x1a0
<4>[  161.276364]  kernfs_fop_write+0x104/0x190
<4>[  161.276369]  __vfs_write+0x31/0x180
<4>[  161.276374]  ? rcu_read_lock_sched_held+0x6f/0x80
<4>[  161.276377]  ? rcu_sync_lockdep_assert+0x29/0x50
<4>[  161.276380]  ? __sb_start_write+0x152/0x1f0
<4>[  161.276382]  ? __sb_start_write+0x163/0x1f0
<4>[  161.276387]  vfs_write+0xbd/0x1b0
<4>[  161.276391]  ksys_write+0x50/0xc0
<4>[  161.276397]  do_syscall_64+0x55/0x190
<4>[  161.276400]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
<4>[  161.276403] RIP: 0033:0x7f07d1d72281
<4>[  161.276406] Code: c3 0f 1f 84 00 00 00 00 00 48 8b 05 59 8d 20 00 c3 0f 1f 84 00 00 00 00 00 8b 05 8a d1 20 00 85 c0 75 16 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 57 f3 c3 0f 1f 44 00 00 41 54 55 49 89 d4 53
<4>[  161.276408] RSP: 002b:00007ffc2723fe38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4>[  161.276411] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f07d1d72281
<4>[  161.276412] RDX: 0000000000000002 RSI: 00007f07d1fdc202 RDI: 0000000000000006
<4>[  161.276414] RBP: 00007ffc27240e80 R08: 0000556251ae7cf3 R09: 0000000000000006
<4>[  161.276416] R10: 0000000000000000 R11: 0000000000000246 R12: 00005562518bab50
<4>[  161.276417] R13: 00007ffc272410a0 R14: 0000000000000000 R15: 0000000000000000
<3>[  161.276427] FIX kmalloc-4k: Restoring 0x00000000ffc016ce-0x0000000029190cf1=0x6b

<3>[  161.276429] FIX kmalloc-4k: Marking all objects used
Comment 1 Martin Peres 2018-12-03 16:50:42 UTC
Created attachment 142703 [details]
Dmesg logs
Comment 2 Chris Wilson 2018-12-03 17:01:47 UTC
That does look like a skb packet created after it was freed. Suspicion does first fall on usbnet.


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