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 05 9a a0 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1469056 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0 INFO: task kworker/u4:8:961 blocked for more than 143 seconds. Not tainted 5.10.181 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:8 state:D stack:24056 pid: 961 ppid: 2 flags:0x00004000 Workqueue: events_unbound io_ring_exit_work Call Trace: context_switch kernel/sched/core.c:3800 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4548 schedule+0xcb/0x270 kernel/sched/core.c:4626 schedule_timeout+0x301/0x380 kernel/time/timer.c:1853 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x168/0x270 kernel/sched/completion.c:138 io_ring_exit_work+0x428/0x17a0 io_uring/io_uring.c:9540 process_one_work+0x9a9/0x14b0 kernel/workqueue.c:2279 worker_thread+0x61d/0x1310 kernel/workqueue.c:2425 kthread+0x38f/0x470 kernel/kthread.c:313 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299 Showing all locks held in the system: 1 lock held by khungtaskd/22: #0: ffffffff84ff7fa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6390 2 locks held by in:imklog/179: #0: ffff88800d76c5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xed/0x110 fs/file.c:1018 #1: ffff8880090f6270 (&fq->key){..-.}-{2:2}, at: flush_end_io+0xd7/0xb90 block/blk-flush.c:224 2 locks held by rs:main Q:Reg/180: 2 locks held by agetty/219: #0: ffff88800cbba098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x90 drivers/tty/tty_ldisc.c:267 #1: ffffc900007dd2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xf22/0x14e0 drivers/tty/n_tty.c:2209 2 locks held by kworker/u4:8/961: #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:856 [inline] #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888008061138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x8ac/0x14b0 kernel/workqueue.c:2250 #1: ffff8880393b7da8 ((work_completion)(&ctx->exit_work)){+.+.}-{0:0}, at: process_one_work+0x8df/0x14b0 kernel/workqueue.c:2254 ============================================= scsi_io_completion_action: 254 callbacks suppressed sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 b0 ca 00 00 40 00 print_req_error: 254 callbacks suppressed blk_update_request: I/O error, dev sr0, sector 967464 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 ba 46 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1501464 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 b1 0a 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 967720 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 ba 86 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1501720 op 0x0:(READ) flags 0x84700 phys_seg 10 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 b1 4a 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 967976 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 ba c6 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1501976 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 b1 8a 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 968232 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 bb 06 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1502232 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 b1 ca 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 968488 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 bb 46 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1502488 op 0x0:(READ) flags 0x84700 phys_seg 10 prio class 0 scsi_io_completion_action: 255 callbacks suppressed sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 db 16 00 00 40 00 print_req_error: 255 callbacks suppressed blk_update_request: I/O error, dev sr0, sector 1535064 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 d1 c4 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1001232 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 db 56 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1535320 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 d2 04 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1001488 op 0x0:(READ) flags 0x84700 phys_seg 5 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 db 96 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1535576 op 0x0:(READ) flags 0x84700 phys_seg 9 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 d2 44 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1001744 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 db d6 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1535832 op 0x0:(READ) flags 0x84700 phys_seg 8 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 d2 84 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1002000 op 0x0:(READ) flags 0x84700 phys_seg 6 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 05 dc 16 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1536088 op 0x0:(READ) flags 0x84700 phys_seg 7 prio class 0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE 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 03 d2 c4 00 00 40 00 blk_update_request: I/O error, dev sr0, sector 1002256 op 0x0:(READ) flags 0x84700 phys_seg 4 prio class 0