[  157.429435] scsi_debug:sdebug_driver_probe: scsi_debug: trim poll_queues to 0. poll_q/nr_hw = (0/1)
[  157.438483] scsi host15: scsi_debug: version 0191 [20210520]
                 dev_size_mb=6144, opts=0x0, submit_queues=1, statistics=0
[  157.451061] scsi 15:0:0:0: Direct-Access     Linux    scsi_debug       0191 PQ: 0 ANSI: 7
[  157.459876] sd 15:0:0:0: Power-on or device reset occurred
[  157.459881] sd 15:0:0:0: Attached scsi generic sg1 type 0
[  157.467461] sd 15:0:0:0: [sdb] 12582912 512-byte logical blocks: (6.44 GB/6.00 GiB)
[  157.479473] sd 15:0:0:0: [sdb] Write Protect is off
[  157.484370] sd 15:0:0:0: [sdb] Mode Sense: 73 00 10 08
[  157.486402] sd 15:0:0:0: [sdb] Write cache: enabled, read cache: enabled, supports DPO and FUA
[  157.498064] sd 15:0:0:0: [sdb] Preferred minimum I/O size 512 bytes
[  157.504344] sd 15:0:0:0: [sdb] Optimal transfer size 524288 bytes
[  157.539480] sd 15:0:0:0: [sdb] Attached SCSI disk
[  164.623883] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:none ,FSTYPE:ext2
[  164.943813] EXT4-fs (sdb): mounting ext2 file system using the ext4 subsystem
[  164.954639] EXT4-fs (sdb): mounted filesystem 680531be-411d-44c5-a894-97982d773562 without journal. Quota mode: none.
[  225.434053] EXT4-fs (sdb): unmounting filesystem 680531be-411d-44c5-a894-97982d773562.
[  225.446273] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:none ,FSTYPE:ext3
[  225.976390] EXT4-fs (sdb): mounting ext3 file system using the ext4 subsystem
[  226.006301] EXT4-fs (sdb): mounted filesystem afa04c01-5fd2-46b8-a18e-574dbec4e341 with ordered data mode. Quota mode: none.
[  226.293817] hrtimer: interrupt took 16103 ns
[  286.426439] EXT4-fs (sdb): unmounting filesystem afa04c01-5fd2-46b8-a18e-574dbec4e341.
[  286.593402] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:none ,FSTYPE:ext4
[  286.859162] EXT4-fs (sdb): mounted filesystem 844c2708-b2c7-4ba7-9a42-da03fb6b4608 with ordered data mode. Quota mode: none.
[  347.278586] EXT4-fs (sdb): unmounting filesystem 844c2708-b2c7-4ba7-9a42-da03fb6b4608.
[  347.445159] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:none ,FSTYPE:xfs
[  347.730307] XFS (sdb): Mounting V5 Filesystem fb162eb7-d06d-49c6-ab08-f1fcfcd2adab
[  347.775378] XFS (sdb): Ending clean mount
[  408.201388] XFS (sdb): Unmounting Filesystem fb162eb7-d06d-49c6-ab08-f1fcfcd2adab
[  408.437089] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:mq-deadline ,FSTYPE:ext2
[  408.703960] EXT4-fs (sdb): mounting ext2 file system using the ext4 subsystem
[  408.714812] EXT4-fs (sdb): mounted filesystem ee695da9-9aea-4c42-91fc-de3f05a9051f without journal. Quota mode: none.
[  469.127879] EXT4-fs (sdb): unmounting filesystem ee695da9-9aea-4c42-91fc-de3f05a9051f.
[  469.140326] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:mq-deadline ,FSTYPE:ext3
[  469.573904] EXT4-fs (sdb): mounting ext3 file system using the ext4 subsystem
[  469.603296] EXT4-fs (sdb): mounted filesystem 42347af0-2bfb-4508-8524-9128455c01f7 with ordered data mode. Quota mode: none.
[  530.033831] EXT4-fs (sdb): unmounting filesystem 42347af0-2bfb-4508-8524-9128455c01f7.
[  530.199920] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:mq-deadline ,FSTYPE:ext4
[  530.481160] EXT4-fs (sdb): mounted filesystem e37b6b9a-a2d2-4324-a650-296afac49564 with ordered data mode. Quota mode: none.
[  590.903381] EXT4-fs (sdb): unmounting filesystem e37b6b9a-a2d2-4324-a650-296afac49564.
[  591.069975] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:mq-deadline ,FSTYPE:xfs
[  591.316761] XFS (sdb): Mounting V5 Filesystem ec42e241-9cdd-48bf-9a90-f7841af09387
[  591.362693] XFS (sdb): Ending clean mount
[  651.803242] XFS (sdb): Unmounting Filesystem ec42e241-9cdd-48bf-9a90-f7841af09387
[  652.090055] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:kyber ,FSTYPE:ext2
[  652.364989] EXT4-fs (sdb): mounting ext2 file system using the ext4 subsystem
[  652.375876] EXT4-fs (sdb): mounted filesystem d59a1d24-4bb4-42fc-8b2e-bf7e469b37a7 without journal. Quota mode: none.
[  712.800067] EXT4-fs (sdb): unmounting filesystem d59a1d24-4bb4-42fc-8b2e-bf7e469b37a7.
[  712.811983] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:kyber ,FSTYPE:ext3
[  713.277388] EXT4-fs (sdb): mounting ext3 file system using the ext4 subsystem
[  713.307426] EXT4-fs (sdb): mounted filesystem 70a95e06-09d8-4161-bfc8-e70462633f5e with ordered data mode. Quota mode: none.
[  773.725976] EXT4-fs (sdb): unmounting filesystem 70a95e06-09d8-4161-bfc8-e70462633f5e.
[  773.892836] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:kyber ,FSTYPE:ext4
[  774.175238] EXT4-fs (sdb): mounted filesystem 69d95d77-7bc7-4c67-85fd-93af53cbecb5 with ordered data mode. Quota mode: none.
[  834.599051] EXT4-fs (sdb): unmounting filesystem 69d95d77-7bc7-4c67-85fd-93af53cbecb5.
[  834.764975] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:kyber ,FSTYPE:xfs
[  835.005877] XFS (sdb): Mounting V5 Filesystem 13c6def0-f68a-4fc2-8bdd-d3770319d900
[  835.051036] XFS (sdb): Ending clean mount
[  895.483289] XFS (sdb): Unmounting Filesystem 13c6def0-f68a-4fc2-8bdd-d3770319d900
[  895.718780] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:bfq ,FSTYPE:ext2
[  896.006198] EXT4-fs (sdb): mounting ext2 file system using the ext4 subsystem
[  896.017176] EXT4-fs (sdb): mounted filesystem 178a7238-9cac-4bae-8b5f-9a25eef6bd64 without journal. Quota mode: none.
[  956.428920] EXT4-fs (sdb): unmounting filesystem 178a7238-9cac-4bae-8b5f-9a25eef6bd64.
[  956.441187] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:bfq ,FSTYPE:ext3
[  956.872376] EXT4-fs (sdb): mounting ext3 file system using the ext4 subsystem
[  956.902508] EXT4-fs (sdb): mounted filesystem f50b1bd6-cacc-4fe6-9689-e3cba40b4d67 with ordered data mode. Quota mode: none.
[ 1017.316266] EXT4-fs (sdb): unmounting filesystem f50b1bd6-cacc-4fe6-9689-e3cba40b4d67.
[ 1017.483288] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:bfq ,FSTYPE:ext4
[ 1017.768324] EXT4-fs (sdb): mounted filesystem 5f19914a-b603-402b-9dcd-36f0b3dbf6bd with ordered data mode. Quota mode: none.
[ 1078.239871] EXT4-fs (sdb): unmounting filesystem 5f19914a-b603-402b-9dcd-36f0b3dbf6bd.
[ 1078.405786] HOST:host15 ,DISK:/dev/sdb ,I/O SCHED:bfq ,FSTYPE:xfs
[ 1078.640577] XFS (sdb): Mounting V5 Filesystem 19e56f7c-9b5f-4377-bb9e-446e59e32369
[ 1078.685988] XFS (sdb): Ending clean mount
[ 1139.113549] XFS (sdb): Unmounting Filesystem 19e56f7c-9b5f-4377-bb9e-446e59e32369
[ 1142.368559] sd 15:0:0:0: [sdb] Synchronizing SCSI cache