sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 a8 aa 00 00 40 00
I/O error, dev sr0, sector 1745576 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
INFO: task kworker/u4:2:33 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc2-next-20220826 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:2    state:D stack:24448 pid:33    ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
INFO: task kworker/u4:9:434 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc2-next-20220826 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:9    state:D stack:23536 pid:434   ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
INFO: task kworker/u4:0:12544 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc2-next-20220826 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:0    state:D stack:25160 pid:12544 ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
INFO: task kworker/u4:1:14457 blocked for more than 143 seconds.
      Not tainted 6.0.0-rc2-next-20220826 #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:1    state:D stack:25160 pid:14457 ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>

Showing all threads with locks held in the system:
task:rcu_tasks_kthre state:I stack:29264 pid:11    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 rcu_tasks_one_gp+0x3db/0xc10
 rcu_tasks_kthread+0x80/0xa0
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
1 lock held by rcu_tasks_kthre/11:
 #0: ffffffff85404bd0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc10
task:kworker/u4:2    state:D stack:24448 pid:33    ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
2 locks held by kworker/u4:2/33:
 #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
 #1: ffff888009317db0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
task:in:imklog       state:R  running task     stack:28352 pid:211   ppid:1      flags:0x00000000
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 syslog_print+0x1c2/0x590
 do_syslog.part.0+0x10b/0x6a0
 do_syslog+0x49/0x70
 kmsg_read+0x8a/0xb0
 proc_reg_read+0x11c/0x300
 vfs_read+0x253/0x930
 </TASK>
1 lock held by in:imklog/211:
 #0: ffff88800d6ea5e8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe7/0x100
task:kworker/u4:9    state:D stack:23536 pid:434   ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
2 locks held by kworker/u4:9/434:
 #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
 #1: ffff88800f397db0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
task:kworker/u4:0    state:D stack:25160 pid:12544 ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
2 locks held by kworker/u4:0/12544:
 #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
 #1: ffff8880482bfdb0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
task:kworker/u4:1    state:D stack:25160 pid:14457 ppid:2      flags:0x00004000
Workqueue: events_unbound io_ring_exit_work
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 schedule_timeout+0x3ad/0x480
 __wait_for_common+0x1c3/0x4c0
 io_ring_exit_work+0x4aa/0xc33
 process_one_work+0xa0f/0x1690
 worker_thread+0x637/0x1260
 kthread+0x2ed/0x3a0
 ret_from_fork+0x22/0x30
 </TASK>
2 locks held by kworker/u4:1/14457:
 #0: ffff888007c61138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x90d/0x1690
 #1: ffff888033b27db0 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x941/0x1690
task:syz-executor.4  state:D stack:23560 pid:15220 ppid:3978   flags:0x00024006
Call Trace:
 <TASK>
 __schedule+0x893/0x24a0
 schedule+0xda/0x1b0
 io_schedule+0xbe/0x130
 blk_mq_get_tag+0x55e/0xbd0
 __blk_mq_alloc_requests+0x615/0xef0
 blk_mq_submit_bio+0xa43/0x1bf0
 __submit_bio+0x1c7/0x230
 submit_bio_noacct_nocheck+0x6c9/0x8a0
 submit_bio_noacct+0x824/0x1370
 submit_bio+0x8b/0x250
 do_mpage_readpage+0xabd/0x17b0
 mpage_readahead+0x347/0x670
 read_pages+0x1a6/0xef0
 page_cache_ra_unbounded+0x3ea/0x550
 page_cache_ra_order+0x15a/0x1b0
 filemap_fault+0x1307/0x2270
 __do_fault+0x10d/0x480
 __handle_mm_fault+0x138a/0x34c0
 handle_mm_fault+0x2e6/0xa20
 __get_user_pages+0x497/0x1050
 populate_vma_page_range+0x23d/0x320
 __mm_populate+0xfe/0x3a0
 vm_mmap_pgoff+0x1f5/0x270
 ksys_mmap_pgoff+0x3d0/0x4f0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f61e11cdb19
RSP: 002b:00007f61de743188 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f61e12e0f60 RCX: 00007f61e11cdb19
RDX: 0000000001000004 RSI: 0000000000002000 RDI: 0000000020ffc000
RBP: 00007f61e1227f6d R08: 0000000000000009 R09: 0000000000000000
R10: 0000000000002811 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeda1efb8f R14: 00007f61de743300 R15: 0000000000022000
 </TASK>
1 lock held by syz-executor.4/15220:
 #0: ffff888008121378 (mapping.invalidate_lock#2){.+.+}-{3:3}, at: page_cache_ra_unbounded+0x153/0x550

=============================================

scsi_io_completion_action: 169 callbacks suppressed
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d2 dc 00 00 40 00
blk_print_req_error: 169 callbacks suppressed
I/O error, dev sr0, sector 1788784 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d3 1c 00 00 40 00
I/O error, dev sr0, sector 1789040 op 0x0:(READ) flags 0x84700 phys_seg 10 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d3 5c 00 00 40 00
I/O error, dev sr0, sector 1789296 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d3 9c 00 00 40 00
I/O error, dev sr0, sector 1789552 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d3 dc 00 00 40 00
I/O error, dev sr0, sector 1789808 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d4 1c 00 00 40 00
I/O error, dev sr0, sector 1790064 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d4 5c 00 00 40 00
I/O error, dev sr0, sector 1790320 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d4 9c 00 00 40 00
I/O error, dev sr0, sector 1790576 op 0x0:(READ) flags 0x84700 phys_seg 9 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d4 dc 00 00 40 00
I/O error, dev sr0, sector 1790832 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 d5 1c 00 00 40 00
I/O error, dev sr0, sector 1791088 op 0x0:(READ) flags 0x84700 phys_seg 10 prio class 2
scsi_io_completion_action: 161 callbacks suppressed
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fd 4a 00 00 40 00
blk_print_req_error: 161 callbacks suppressed
I/O error, dev sr0, sector 1832232 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fd 8a 00 00 40 00
I/O error, dev sr0, sector 1832488 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fd ca 00 00 40 00
I/O error, dev sr0, sector 1832744 op 0x0:(READ) flags 0x84700 phys_seg 9 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fe 0a 00 00 40 00
I/O error, dev sr0, sector 1833000 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fe 4a 00 00 40 00
I/O error, dev sr0, sector 1833256 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fe 8a 00 00 40 00
I/O error, dev sr0, sector 1833512 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 fe ca 00 00 40 00
I/O error, dev sr0, sector 1833768 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 ff 0a 00 00 40 00
I/O error, dev sr0, sector 1834024 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 ff 4a 00 00 40 00
I/O error, dev sr0, sector 1834280 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 2
sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s
sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] 
sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present
sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 06 ff 8a 00 00 40 00
I/O error, dev sr0, sector 1834536 op 0x0:(READ) flags 0x84700 phys_seg 11 prio class 2