igt@gem_mmap_offset@open-flood - abort - Received signal SIGQUIT, INFO: task kworker/.* blocked for more than 61 seconds

https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_13386/shard-snb7/igt@gem_mmap_offset@open-flood.html

<7> [628.958204] i915 0000:00:02.0: [drm:i915_gem_open [i915]] 
<3> [628.958382] INFO: task kworker/6:1:56 blocked for more than 61 seconds.
<3> [628.958389]       Tainted: G     U  W          6.5.0-rc1-CI_DRM_13386-gd28b52d0f5cd+ #1
<3> [628.958393] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
<6> [628.958396] task:kworker/6:1     state:D stack:13912 pid:56    ppid:2      flags:0x00004000
<6> [628.958407] Workqueue: events ata_scsi_dev_rescan
<6> [628.958415] Call Trace:
<6> [628.958418]  <TASK>
<6> [628.958425]  __schedule+0x3a4/0xd70
<6> [628.958521]  schedule+0x5c/0xd0
<6> [628.958608]  schedule_preempt_disabled+0x13/0x30
<6> [628.958614]  __mutex_lock+0x740/0xcc0
<6> [628.958624]  ? ata_scsi_dev_rescan+0x36/0x190
<6> [628.958637]  ? ata_scsi_dev_rescan+0x36/0x190
<6> [628.958641]  ata_scsi_dev_rescan+0x36/0x190
<6> [628.958651]  process_one_work+0x251/0x500
<6> [628.958666]  worker_thread+0x4f/0x3a0
<6> [628.958676]  ? __pfx_worker_thread+0x10/0x10
<6> [628.958682]  kthread+0x101/0x130
<6> [628.958687]  ? __pfx_kthread+0x10/0x10
<6> [628.958695]  ret_from_fork+0x2c/0x50
<6> [628.958715]  </TASK>
<4> [628.958750] 
Showing all locks held in the system:
<4> [628.958754] 1 lock held by rcu_tasks_kthre/12:
<4> [628.958758]  #0: ffffffff82738750 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2b/0x400
<4> [628.958779] 4 locks held by kworker/3:0/30:
<4> [628.958783]  #0: ffff888100081538 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1bd/0x500
<4> [628.958800]  #1: ffffc90000143e60 ((work_completion)(&(&ap->hotplug_task)->work)){+.+.}-{0:0}, at: process_one_work+0x1c1/0x500
<4> [628.958818]  #2: ffff8881034b4350 (&ap->scsi_scan_mutex){+.+.}-{3:3}, at: ata_scsi_hotplug+0x2a/0x80
<4> [628.958835]  #3: ffff8881036010e0 (&shost->scan_mutex){+.+.}-{3:3}, at: __scsi_add_device+0x76/0x180
<4> [628.958852] 3 locks held by kworker/6:1/56:
<4> [628.958856]  #0: ffff888100081538 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1bd/0x500
<4> [628.958873]  #1: ffffc90000227e60 ((work_completion)(&(&ap->scsi_rescan_task)->work)){+.+.}-{0:0}, at: process_one_work+0x1c1/0x500
<4> [628.958890]  #2: ffff8881034b4350 (&ap->scsi_scan_mutex){+.+.}-{3:3}, at: ata_scsi_dev_rescan+0x36/0x190
<4> [628.958906] 1 lock held by khungtaskd/57:
<4> [628.958909]  #0: ffffffff82739200 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x12/0x1d0
<4> [628.958929] 1 lock held by in:imklog/284:
<4> [628.958933]  #0: ffff888102cc5288 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x47/0x60
<4> [628.958953] 5 locks held by dmesg/1074:
<4> [628.958958] 1 lock held by gem_mmap_offset/1750:
<4> [628.958961] 1 lock held by gem_mmap_offset/1752:
<4> [628.958965] 1 lock held by gem_mmap_offset/1753:
<4> [628.958968] 
<4> [628.958971] =============================================