igt@gem_mmap_gtt@basic-small-bo-tiledy - incomplete - general protection fault, probably for non-canonical address 0xffff018000002124: 0000 [#1] PREEMPT SMP PTI

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_661/fi-bwr-2160/igt@gem_mmap_gtt@basic-small-bo-tiledy.html#dmesg-warnings41

6> [199.539704] [IGT] gem_mmap_gtt: executing
<6> [199.553901] [IGT] gem_mmap_gtt: starting subtest basic-small-bo-tiledY
<6> [199.588060] gem_mmap_gtt (1135): drop_caches: 4
<6> [199.595559] perf: interrupt took too long (2518 > 2500), lowering kernel.perf_event_max_sample_rate to 79000
<4> [199.688613] general protection fault, probably for non-canonical address 0xffff018000002124: 0000 [#1] PREEMPT SMP PTI
<4> [199.688644] CPU: 0 PID: 1135 Comm: gem_mmap_gtt Not tainted 5.9.0-rc6-g050bf10e3619e-drmtip_661+ #1
<4> [199.688663] Hardware name: Dell Inc.                 OptiPlex 745                 /0GW726, BIOS 2.3.1  05/21/2007
<4> [199.688691] RIP: 0010:jbd2_journal_grab_journal_head+0xf/0x90
<4> [199.688705] Code: 80 86 02 82 48 c7 c7 2e e0 30 82 e8 c4 a2 d7 ff e9 4d ff ff ff 66 0f 1f 44 00 00 55 53 48 89 fb bf 01 00 00 00 e8 61 d1 d2 ff <f0> 48 0f ba 2b 16 72 3c 48 8b 03 a9 00 00 01 00 74 57 48 8b 6b 40
<4> [199.688740] RSP: 0018:ffffc9000044bc18 EFLAGS: 00010246
<4> [199.688753] RAX: ffff88801e398040 RBX: ffff018000002124 RCX: 0000000000000001
<4> [199.688769] RDX: 0000000000000000 RSI: ffffea000051da00 RDI: ffffffff813baaef
<4> [199.688784] RBP: ffffea000051da00 R08: ffff88801e398948 R09: 00000000fffffffe
<4> [199.688799] R10: 000000003eb0a32a R11: 0000000086231caa R12: ffff88802e47c008
<4> [199.688816] R13: 0000000000000000 R14: ffffea000051da00 R15: 0000000000000000
<4> [199.688832] FS:  00007f9fa4f48e40(0000) GS:ffff88803e000000(0000) knlGS:0000000000000000
<4> [199.688850] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
<4> [199.688864] CR2: 00007fa5c23388a8 CR3: 000000003253a000 CR4: 00000000000006f0
<4> [199.688879] Call Trace:
<4> [199.688891]  jbd2_journal_try_to_free_buffers+0x70/0x1a0
<4> [199.688909]  invalidate_inode_page+0x93/0xf0
<4> [199.688923]  invalidate_mapping_pages+0x17a/0x400
<4> [199.688939]  ? __lock_acquire+0x909/0x1f50
<4> [199.688963]  drop_pagecache_sb+0xba/0x110
<4> [199.688976]  ? do_coredump+0x11b0/0x11b0
<4> [199.688988]  iterate_supers+0x87/0xf0
<4> [199.689001]  drop_caches_sysctl_handler+0x60/0xa0
<4> [199.689015]  proc_sys_call_handler+0xda/0x170
<4> [199.689029]  vfs_write+0xd1/0x220
<4> [199.689040]  ksys_write+0xa2/0xe0
<4> [199.689053]  do_syscall_64+0x33/0x80
<4> [199.689064]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
<4> [199.689077] RIP: 0033:0x7f9fa46ac281
<4> [199.689088] 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> [199.689124] RSP: 002b:00007ffca12c6f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
<4> [199.689142] RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f9fa46ac281
<4> [199.689158] RDX: 0000000000000002 RSI: 00007f9fa4934203 RDI: 000000000000000a
<4> [199.689173] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
<4> [199.689189] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9fa49341e7
<4> [199.689204] R13: 0000000000000009 R14: 00007ffca12c7090 R15: 0000000000000000
<4> [199.689225] Modules linked in: vgem i915 coretemp snd_hda_codec_analog snd_hda_codec_generic ledtrig_audio snd_hda_intel lpc_ich snd_intel_dspcfg snd_hda_codec snd_hwdep snd_hda_core tg3 ptp snd_pcm pps_core prime_numbers
<4> [199.689378] ---[ end trace 533e3b813afac422 ]---