https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6147/shard-kbl3/igt@gem_tiled_swapping@non-threaded.html <6> [1504.674826] Console: switching to colour dummy device 80x25 <6> [1504.674876] [IGT] gem_tiled_swapping: executing <1> [1505.337813] BUG: unable to handle page fault for address: ffffea0003ff8030 <1> [1505.337825] #PF: supervisor read access in kernel mode <1> [1505.337831] #PF: error_code(0x0000) - not-present page <6> [1505.337837] PGD 276ef7067 P4D 276ef7067 PUD 276ef6067 PMD 0 <4> [1505.337845] Oops: 0000 [#1] PREEMPT SMP PTI <4> [1505.337852] CPU: 3 PID: 38 Comm: khugepaged Tainted: G U 5.2.0-rc2-CI-CI_DRM_6147+ #1 <4> [1505.337862] Hardware name: /NUC7i5BNB, BIOS BNKBL357.86A.0054.2017.1025.1822 10/25/2017 <4> [1505.337875] RIP: 0010:compaction_alloc+0x5d3/0x960 <4> [1505.337882] Code: 39 cf 0f 83 e8 00 00 00 e9 85 01 00 00 48 8b 04 24 4d 89 e6 80 b8 7d 04 00 00 00 0f 84 03 01 00 00 4d 85 f6 0f 84 a2 00 00 00 <41> 8b 46 30 25 80 00 00 f0 3d 00 00 00 f0 0f 84 fd 00 00 00 80 7b <4> [1505.337900] RSP: 0018:ffffc9000019b928 EFLAGS: 00010286 <4> [1505.337906] RAX: ffffffff8230bac0 RBX: ffffc9000019bb30 RCX: 00000000000001e0 <4> [1505.337914] RDX: 80000000000ffe00 RSI: 1000000000000000 RDI: 2333333333333533 <4> [1505.337922] RBP: 8000000000100000 R08: efffffffffffffff R09: ffffffff8230bac0 <4> [1505.337929] R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0003ff8000 <4> [1505.337937] R13: 0000000000000020 R14: ffffea0003ff8000 R15: 80000000000ffe00 <4> [1505.337945] FS: 0000000000000000(0000) GS:ffff888276b80000(0000) knlGS:0000000000000000 <4> [1505.337954] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [1505.337961] CR2: ffffea0003ff8030 CR3: 0000000005210004 CR4: 00000000003606e0 <4> [1505.337969] Call Trace: <4> [1505.337979] migrate_pages+0x122/0xb40 <4> [1505.337986] ? isolate_freepages_block+0x460/0x460 <4> [1505.337993] ? __reset_isolation_suitable+0x110/0x110 <4> [1505.338001] compact_zone+0x604/0xf60 <4> [1505.338010] compact_zone_order+0xda/0x120 <4> [1505.338020] ? try_to_wake_up+0x257/0x820 <4> [1505.338026] ? try_to_compact_pages+0xb2/0x2b0 <4> [1505.338033] try_to_compact_pages+0xb2/0x2b0 <4> [1505.338041] __alloc_pages_direct_compact+0x62/0x140 <4> [1505.338049] __alloc_pages_nodemask+0x72d/0x1130 <4> [1505.338058] ? lock_acquire+0xa6/0x1c0 <4> [1505.338066] ? khugepaged+0x233/0x2560 <4> [1505.338074] khugepaged+0x2d4/0x2560 <4> [1505.338086] ? wait_woken+0xa0/0xa0 <4> [1505.338093] ? collapse_shmem.isra.8+0xe50/0xe50 <4> [1505.338100] kthread+0x119/0x130 <4> [1505.338106] ? kthread_park+0x80/0x80 <4> [1505.338113] ret_from_fork+0x3a/0x50 https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_295/fi-icl-dsi/igt@gem_ppgtt@blt-vs-render-ctxn.html <6> [54.317209] Console: switching to colour dummy device 80x25 <6> [54.317258] [IGT] gem_ppgtt: executing <6> [54.323140] [IGT] gem_ppgtt: starting subtest blt-vs-render-ctxN <6> [54.323352] gem_ppgtt (1210): drop_caches: 4 <1> [85.048012] BUG: unable to handle page fault for address: ffff98cb44b36c48 <1> [85.048028] #PF: supervisor write access in kernel mode <1> [85.048036] #PF: error_code(0x0002) - not-present page <6> [85.048044] PGD 23a001067 P4D 23a001067 PUD 0 <4> [85.048055] Oops: 0002 [#1] PREEMPT SMP PTI <4> [85.048064] CPU: 7 PID: 223 Comm: kworker/7:2 Tainted: G U 5.2.0-rc2-ga8a2a6870850-drmtip_295+ #1 <4> [85.048077] Hardware name: Intel Corporation Ice Lake Client Platform/IceLake Y LPDDR4x T4 RVP TLC, BIOS ICLSFWR1.R00.3102.A00.1903052247 03/05/2019 <4> [85.048099] Workqueue: events delayed_fput <4> [85.048111] RIP: 0010:__lock_acquire+0xf6/0x24c0 <4> [85.048119] Code: ff 4c 8b 95 40 ff ff ff 0f 84 e8 04 00 00 49 81 ec 80 55 c4 a4 48 b8 a3 8b 2e ba e8 a2 8b 2e 49 c1 fc 04 4c 0f af e0 49 63 c4 <65> 48 ff 04 c5 50 66 01 00 8b 05 43 3c 43 02 45 8b ba 70 08 00 00 <4> [85.048141] RSP: 0018:ffffa4474089bc60 EFLAGS: 00010803 <4> [85.048150] RAX: 000000005d1740bf RBX: 0000000000000000 RCX: 0000000000000000 <4> [85.048160] RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff98c8524dd640 <4> [85.048170] RBP: ffffa4474089bd20 R08: 0000000000000001 R09: 0000000000000000 <4> [85.048179] R10: ffff98c8561a8040 R11: 0000000000000000 R12: 1745d1745d1740bf <4> [85.048189] R13: ffff98c8524dd640 R14: 0000000000000001 R15: 0000000000000246 <4> [85.048199] FS: 0000000000000000(0000) GS:ffff98c85bf80000(0000) knlGS:0000000000000000 <4> [85.048211] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4> [85.048220] CR2: ffff98cb44b36c48 CR3: 0000000281c7a002 CR4: 0000000000760ee0 <4> [85.048230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <4> [85.048240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 <4> [85.048249] PKRU: 55555554 <4> [85.048254] Call Trace: <4> [85.048264] ? dentry_kill+0x22/0x1b0 <4> [85.048273] ? mark_held_locks+0x49/0x70 <4> [85.048284] ? lock_acquire+0xa6/0x1c0 <4> [85.048292] lock_acquire+0xa6/0x1c0 <4> [85.048300] ? dentry_kill+0x22/0x1b0 <4> [85.048309] ? dput+0x20/0x2c0 <4> [85.048319] _raw_spin_trylock+0x60/0x80 <4> [85.048328] ? dentry_kill+0x22/0x1b0 <4> [85.048336] dentry_kill+0x22/0x1b0 <4> [85.048344] ? dput+0x20/0x2c0 <4> [85.048351] dput+0x262/0x2c0 <4> [85.048359] __fput+0x102/0x220 <4> [85.048368] delayed_fput+0x17/0x30 <4> [85.048377] process_one_work+0x245/0x610 <4> [85.048387] worker_thread+0x37/0x380 <4> [85.048396] ? process_one_work+0x610/0x610 <4> [85.048404] kthread+0x119/0x130 <4> [85.048412] ? kthread_park+0x80/0x80 <4> [85.048421] ret_from_fork+0x3a/0x50
The CI Bug Log issue associated to this bug has been updated. ### New filters associated * KBL ICL: all tests - dmesg-warn - BUG: unable to handle page fault for address - https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_6147/shard-kbl3/igt@gem_tiled_swapping@non-threaded.html - https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_295/fi-icl-dsi/igt@gem_ppgtt@blt-vs-render-ctxn.html
Superficially not us.
I suspect fixed by commit f27a5d91201639161d6f6e25af1c89c9cbb3cac7 (drm-intel/topic/core-for-CI, topic/core-for-CI) Author: Hugh Dickins <hughd@google.com> Date: Wed May 29 09:25:40 2019 +0200 x86/fpu: Use fault_in_pages_writeable() for pre-faulting Since commit d9c9ce34ed5c8 ("x86/fpu: Fault-in user stack if copy_fpstate_to_sigframe() fails") we use get_user_pages_unlocked() to pre-faulting user's memory if a write generates a pagefault while the handler is disabled. This works in general and uncovered a bug as reported by Mike Rapoport. It has been pointed out that this function may be fragile and a simple pre-fault as in fault_in_pages_writeable() would be a better solution. Better as in taste and simplicity: That write (as performed by the alternative function) performs exactly the same faulting of memory that we had before. This was suggested by Hugh Dickins and Andrew Morton. Use fault_in_pages_writeable() for pre-faulting of user's stack. Fixes: d9c9ce34ed5c8 ("x86/fpu: Fault-in user stack if copy_fpstate_to_sigframe() fails") Suggested-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Hugh Dickins <hughd@google.com> [bigeasy: patch description] Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> but this might a different issue - time will tell.
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.