Created attachment 280591 [details] Boot log <1>[ 429.563229] BUG: unable to handle kernel paging request at 0000004000000018 <1>[ 429.563233] #PF error: [normal kernel read fault] <6>[ 429.563236] PGD 0 P4D 0 <4>[ 429.563239] Oops: 0000 [#1] PREEMPT SMP PTI <4>[ 429.563242] CPU: 0 PID: 159 Comm: kworker/0:3 Tainted: G U 5.0.0-rc2-CI-CI_DRM_5445+ #1 <4>[ 429.563244] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake U DDR4 SODIMM PD RVP TLC, BIOS ICLSFWR1.R00.2402.AD3.1810170014 10/17/2018 <4>[ 429.563249] Workqueue: events delayed_fput <4>[ 429.563254] RIP: 0010:debug_check_no_obj_freed+0xcd/0x210 <4>[ 429.563257] Code: 00 48 8b 4c 24 20 48 89 44 24 18 48 c7 c0 40 ce 6c 83 48 8b 2c 08 48 85 ed 0f 84 ff 00 00 00 4c 8b 74 24 28 45 31 ed 48 89 ef <48> 8b 47 18 41 83 c5 01 48 8b 2f 49 39 c4 77 37 4c 39 f0 73 32 83 <4>[ 429.563259] RSP: 0018:ffffc90000267a58 EFLAGS: 00010046 <4>[ 429.563261] RAX: ffffffff836cce40 RBX: 0000000000000000 RCX: 00000000000f6a00 <4>[ 429.563263] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000004000000000 <4>[ 429.563264] RBP: 0000004000000000 R08: 000000000c6d722e R09: 0000000000000000 <4>[ 429.563266] R10: ffffc900002679d0 R11: ffffffff837c3860 R12: ffff8883b2e74000 <4>[ 429.563268] R13: 0000000000000000 R14: ffff8883b2e75000 R15: dead000000000100 <4>[ 429.563270] FS: 0000000000000000(0000) GS:ffff8884afe00000(0000) knlGS:0000000000000000 <4>[ 429.563272] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 429.563274] CR2: 0000004000000018 CR3: 0000000005214005 CR4: 0000000000760ef0 <4>[ 429.563276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <4>[ 429.563277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 <4>[ 429.563279] PKRU: 55555554 <4>[ 429.563281] Call Trace: <4>[ 429.563287] free_pcp_prepare+0x77/0x160 <4>[ 429.563290] free_unref_page_list+0x69/0x250 <4>[ 429.563296] release_pages+0x2d3/0x390 <4>[ 429.563301] __pagevec_release+0x1f/0x30 <4>[ 429.563304] shmem_undo_range+0x3ad/0x890 <4>[ 429.563313] shmem_truncate_range+0x11/0x30 <4>[ 429.563316] shmem_evict_inode+0xb8/0x1a0 <4>[ 429.563319] ? dput+0x20/0x2c0 <4>[ 429.563322] evict+0xcb/0x190 <4>[ 429.563324] __dentry_kill+0xca/0x190 <4>[ 429.563327] dentry_kill+0x4b/0x1b0 <4>[ 429.563330] ? dput+0x20/0x2c0 <4>[ 429.563332] dput+0x262/0x2c0 <4>[ 429.563335] __fput+0xf7/0x1f0 <4>[ 429.563338] delayed_fput+0x17/0x30 <4>[ 429.563341] process_one_work+0x245/0x610 <4>[ 429.563345] worker_thread+0x37/0x380 <4>[ 429.563348] ? process_one_work+0x610/0x610 <4>[ 429.563351] kthread+0x119/0x130 <4>[ 429.563354] ? kthread_park+0x80/0x80 <4>[ 429.563358] ret_from_fork+0x3a/0x50 <4>[ 429.563362] Modules linked in: vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal coretemp i915 crct10dif_pclmul crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm e1000e cdc_ether usbnet mii i2c_i801 prime_numbers
Created attachment 280593 [details] Logs during the execution of the tests that triggered the issue
All the information about the machine is available here: https://intel-gfx-ci.01.org/hardware/shard-iclb4/
This issue has been seen only once, the kernel has changed a lot, and the machine has been problematic... Closing the bug as insufficient_data. Sorry for the noise!