https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_354/fi-skl-guc/igt@kms_cursor_edge_walk@pipe-c-256x256-top-edge.html ] Memory corruption detected in low memory <4> [62.783783] WARNING: CPU: 0 PID: 190 at arch/x86/kernel/check.c:161 check_corruption+0xc3/0x110 <4> [62.783785] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic mei_hdcp i915 x86_pkg_temp_thermal coretemp snd_hda_intel crct10dif_pclmul snd_intel_nhlt snd_hda_codec crc32_pclmul snd_hwdep snd_hda_core ghash_clmulni_intel snd_pcm e1000e ptp pps_core mei_me mei prime_numbers <4> [62.783796] CPU: 0 PID: 190 Comm: kworker/0:2 Tainted: G U 5.3.0-rc6-g88fa1d35a714-drmtip_354+ #1 <4> [62.783797] Hardware name: System manufacturer System Product Name/Z170 PRO GAMING, BIOS 3402 04/26/2017 <4> [62.783799] Workqueue: events check_corruption <4> [62.783802] RIP: 0010:check_corruption+0xc3/0x110 <4> [62.783804] Code: 00 7b 23 85 bf 10 00 00 00 e9 89 63 08 00 80 3d 59 6d 2c 01 00 75 c3 48 c7 c7 30 4d 06 85 c6 05 49 6d 2c 01 01 e8 5d 35 06 00 <0f> 0b eb ac 48 89 da 4c 01 f2 72 2d 4c 89 f8 48 2b 05 e7 47 0d 01 <4> [62.783805] RSP: 0018:ffffa66c006ffe30 EFLAGS: 00010282 <4> [62.783806] RAX: 0000000000000000 RBX: ffff8f0340010000 RCX: 0000000000000001 <4> [62.783808] RDX: 0000000080000001 RSI: ffff8f0569ab58f0 RDI: 00000000ffffffff <4> [62.783809] RBP: 0000000000000000 R08: ffff8f0569ab58f0 R09: 0000000000000000 <4> [62.783810] R10: 0000000056c16057 R11: 0000000000000000 R12: ffffffff8584d1d0 <4> [62.783811] R13: 0000000000000001 R14: 0000000080000000 R15: ffffffff80000000 <4> [62.783812] FS: 0000000000000000(0000) GS:ffff8f056e800000(0000) knlGS:0000000000000000 <4> [62.783814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [62.783815] CR2: 0000563900023078 CR3: 00000001f8210001 CR4: 00000000003606f0 <4> [62.783816] Call Trace: <4> [62.783820] process_one_work+0x245/0x610 <4> [62.783825] worker_thread+0x37/0x380 <4> [62.783828] ? process_one_work+0x610/0x610 <4> [62.783830] kthread+0x119/0x130 <4> [62.783832] ? kthread_park+0xa0/0xa0 <4> [62.783846] ret_from_fork+0x3a/0x50 <4> [62.783852] irq event stamp: 192356 <4> [62.783856] hardirqs last enabled at (192355): [<ffffffff8412f567>] console_unlock+0x3f7/0x5a0 <4> [62.783858] hardirqs last disabled at (192356): [<ffffffff84001a8a>] trace_hardirqs_off_thunk+0x1a/0x20 <4> [62.783860] softirqs last enabled at (191200): [<ffffffff84c0033e>] __do_softirq+0x33e/0x4ae <4> [62.783862] softirqs last disabled at (191187): [<ffffffff840bc029>] irq_exit+0xa9/0xc0 <4> [62.783864] WARNING: CPU: 0 PID: 190 at arch/x86/kernel/check.c:161 check_corruption+0xc3/0x110
The CI Bug Log issue associated to this bug has been updated. ### New filters associated * SKL: igt@kms_cursor_edge_walk@pipe-c-256x256-top-edge - dmesg-warn - Memory corruption detected in low memory - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_354/fi-skl-guc/igt@kms_cursor_edge_walk@pipe-c-256x256-top-edge.html
This should be an example where if the bug is ours, it will be detected by dmar.
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