@Matthew I boot int o 5.4.0-42, it has different symptom, now the `udisksctl mount -b /dev/sdb1` halt for more than 10 mins and the dmesg is different, it does not error out immediately, but repetitively reset the handle. [ 83.317249] systemd-journald[597]: Successfully sent stream file descriptor to service manager. [ 92.750180] usb 2-2: new SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 92.775135] usb 2-2: New USB device found, idVendor=13fe, idProduct=2570, bcdDevice=52.04 [ 92.775140] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 92.775144] usb 2-2: Product: Patriot Memory [ 92.775146] usb 2-2: Manufacturer: PXD [ 92.775148] usb 2-2: SerialNumber: 5112005142442DD3000019 [ 92.804959] usbcore: registered new interface driver usb-storage [ 92.813302] scsi host1: uas [ 92.813411] usbcore: registered new interface driver uas [ 92.813813] scsi 1:0:0:0: Direct-Access PXD Patriot Memory 5204 PQ: 0 ANSI: 6 [ 92.814407] sd 1:0:0:0: Attached scsi generic sg1 type 0 [ 94.784086] sd 1:0:0:0: [sdb] 4000797360 512-byte logical blocks: (2.05 TB/1.86 TiB) [ 94.784092] sd 1:0:0:0: [sdb] 4096-byte physical blocks [ 94.784246] sd 1:0:0:0: [sdb] Write Protect is off [ 94.784251] sd 1:0:0:0: [sdb] Mode Sense: 5f 00 00 08 [ 94.784492] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 94.784850] sd 1:0:0:0: [sdb] Optimal transfer size 33553920 bytes not a multiple of physical block size (4096 bytes) [ 94.811392] sdb: sdb1 sdb2 [ 94.814205] sd 1:0:0:0: [sdb] Attached SCSI disk [ 114.748031] systemd-journald[597]: Successfully sent stream file descriptor to service manager. [ 220.511826] XFS (sdb1): Mounting V5 Filesystem [ 251.324415] sd 1:0:0:0: [sdb] tag#7 uas_eh_abort_handler 0 uas-tag 1 inflight: CMD OUT [ 251.324424] sd 1:0:0:0: [sdb] tag#7 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 251.328955] sd 1:0:0:0: [sdb] tag#6 uas_eh_abort_handler 0 uas-tag 4 inflight: CMD OUT [ 251.328962] sd 1:0:0:0: [sdb] tag#6 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 251.336191] sd 1:0:0:0: [sdb] tag#5 uas_eh_abort_handler 0 uas-tag 3 inflight: CMD OUT [ 251.336200] sd 1:0:0:0: [sdb] tag#5 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 251.343184] sd 1:0:0:0: [sdb] tag#4 uas_eh_abort_handler 0 uas-tag 2 inflight: CMD OUT [ 251.343192] sd 1:0:0:0: [sdb] tag#4 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 251.392372] scsi host1: uas_eh_device_reset_handler start [ 251.521091] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 251.545897] scsi host1: uas_eh_device_reset_handler success [ 269.017285] systemd-journald[597]: Successfully sent stream file descriptor to service manager. [ 282.052398] scsi host1: uas_eh_device_reset_handler start [ 282.080099] sd 1:0:0:0: [sdb] tag#27 uas_zap_pending 0 uas-tag 1 inflight: CMD [ 282.080102] sd 1:0:0:0: [sdb] tag#27 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 282.080104] sd 1:0:0:0: [sdb] tag#24 uas_zap_pending 0 uas-tag 2 inflight: CMD [ 282.080106] sd 1:0:0:0: [sdb] tag#24 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 282.080107] sd 1:0:0:0: [sdb] tag#25 uas_zap_pending 0 uas-tag 3 inflight: CMD [ 282.080108] sd 1:0:0:0: [sdb] tag#25 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 282.080110] sd 1:0:0:0: [sdb] tag#26 uas_zap_pending 0 uas-tag 4 inflight: CMD [ 282.080111] sd 1:0:0:0: [sdb] tag#26 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 282.212899] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 282.237614] scsi host1: uas_eh_device_reset_handler success [ 312.772520] scsi host1: uas_eh_device_reset_handler start [ 312.796212] sd 1:0:0:0: [sdb] tag#8 uas_zap_pending 0 uas-tag 1 inflight: CMD [ 312.796220] sd 1:0:0:0: [sdb] tag#8 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 312.796226] sd 1:0:0:0: [sdb] tag#9 uas_zap_pending 0 uas-tag 2 inflight: CMD [ 312.796230] sd 1:0:0:0: [sdb] tag#9 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 312.796235] sd 1:0:0:0: [sdb] tag#10 uas_zap_pending 0 uas-tag 3 inflight: CMD [ 312.796239] sd 1:0:0:0: [sdb] tag#10 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 312.796244] sd 1:0:0:0: [sdb] tag#11 uas_zap_pending 0 uas-tag 4 inflight: CMD [ 312.796247] sd 1:0:0:0: [sdb] tag#11 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 312.924964] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 312.949609] scsi host1: uas_eh_device_reset_handler success [ 343.488693] scsi host1: uas_eh_device_reset_handler start [ 343.512169] sd 1:0:0:0: [sdb] tag#17 uas_zap_pending 0 uas-tag 1 inflight: CMD [ 343.512178] sd 1:0:0:0: [sdb] tag#17 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 343.512184] sd 1:0:0:0: [sdb] tag#16 uas_zap_pending 0 uas-tag 2 inflight: CMD [ 343.512189] sd 1:0:0:0: [sdb] tag#16 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 343.512194] sd 1:0:0:0: [sdb] tag#18 uas_zap_pending 0 uas-tag 3 inflight: CMD [ 343.512198] sd 1:0:0:0: [sdb] tag#18 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 343.512203] sd 1:0:0:0: [sdb] tag#19 uas_zap_pending 0 uas-tag 4 inflight: CMD [ 343.512206] sd 1:0:0:0: [sdb] tag#19 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 343.641189] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 343.665209] scsi host1: uas_eh_device_reset_handler success [ 363.952725] INFO: task pool-udisksd:4312 blocked for more than 120 seconds. [ 363.952732] Tainted: P OE 5.4.0-42-generic #46-Ubuntu [ 363.952735] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 363.952739] pool-udisksd D 0 4312 1 0x00004000 [ 363.952744] Call Trace: [ 363.952756] __schedule+0x2e3/0x740 [ 363.952762] ? __switch_to_asm+0x40/0x70 [ 363.952767] ? __switch_to_asm+0x34/0x70 [ 363.952771] schedule+0x42/0xb0 [ 363.952775] schedule_timeout+0x203/0x2f0 [ 363.952778] ? __schedule+0x2eb/0x740 [ 363.952783] io_schedule_timeout+0x1e/0x50 [ 363.952787] wait_for_completion_io+0xb1/0x120 [ 363.952794] ? wake_up_q+0x70/0x70 [ 363.952800] submit_bio_wait+0x60/0x90 [ 363.952894] xfs_rw_bdev+0x1d2/0x200 [xfs] [ 363.952986] xlog_do_io+0x88/0x120 [xfs] [ 363.953073] xlog_bwrite+0x14/0x20 [xfs] [ 363.953161] xlog_write_log_records+0x164/0x210 [xfs] [ 363.953264] xlog_clear_stale_blocks+0xbb/0x1a0 [xfs] [ 363.953340] xlog_find_tail+0x227/0x330 [xfs] [ 363.953347] ? try_to_wake_up+0x224/0x6a0 [ 363.953421] xlog_recover+0x2f/0x160 [xfs] [ 363.953498] xfs_log_mount+0x15b/0x2c0 [xfs] [ 363.953571] xfs_mountfs+0x421/0x870 [xfs] [ 363.953643] xfs_fs_fill_super+0x484/0x6a0 [xfs] [ 363.953651] mount_bdev+0x17f/0x1b0 [ 363.953720] ? xfs_test_remount_options+0x60/0x60 [xfs] [ 363.953788] xfs_fs_mount+0x15/0x20 [xfs] [ 363.953794] legacy_get_tree+0x2b/0x50 [ 363.953799] vfs_get_tree+0x2a/0xc0 [ 363.953806] ? capable+0x19/0x20 [ 363.953812] do_mount+0x7b6/0x9c0 [ 363.953818] ksys_mount+0x82/0xd0 [ 363.953823] __x64_sys_mount+0x25/0x30 [ 363.953830] do_syscall_64+0x57/0x190 [ 363.953836] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 363.953840] RIP: 0033:0x7f7acb726c4e [ 363.953851] Code: Bad RIP value. [ 363.953854] RSP: 002b:00007f7aca7752c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 363.953858] RAX: ffffffffffffffda RBX: 00007f7acbd38204 RCX: 00007f7acb726c4e [ 363.953860] RDX: 00007f7abc00afb0 RSI: 00007f7abc003260 RDI: 00007f7abc003240 [ 363.953863] RBP: 00007f7abc00a600 R08: 0000000000000000 R09: 0000000000000007 [ 363.953865] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000000 [ 363.953867] R13: 00007f7abc003240 R14: 00007f7abc00afb0 R15: 0000000000000000 [ 368.412815] systemd-journald[597]: Successfully sent stream file descriptor to service manager. [ 376.260741] scsi host1: uas_eh_device_reset_handler start [ 376.283487] sd 1:0:0:0: [sdb] tag#22 uas_zap_pending 0 uas-tag 1 inflight: CMD [ 376.283496] sd 1:0:0:0: [sdb] tag#22 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 376.283503] sd 1:0:0:0: [sdb] tag#23 uas_zap_pending 0 uas-tag 2 inflight: CMD [ 376.283506] sd 1:0:0:0: [sdb] tag#23 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 376.283511] sd 1:0:0:0: [sdb] tag#20 uas_zap_pending 0 uas-tag 3 inflight: CMD [ 376.283515] sd 1:0:0:0: [sdb] tag#20 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 376.283520] sd 1:0:0:0: [sdb] tag#21 uas_zap_pending 0 uas-tag 4 inflight: CMD [ 376.283523] sd 1:0:0:0: [sdb] tag#21 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 376.413309] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 376.437455] scsi host1: uas_eh_device_reset_handler success [ 406.976779] scsi host1: uas_eh_device_reset_handler start [ 406.998578] sd 1:0:0:0: [sdb] tag#20 uas_zap_pending 0 uas-tag 1 inflight: CMD [ 406.998586] sd 1:0:0:0: [sdb] tag#20 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 406.998593] sd 1:0:0:0: [sdb] tag#21 uas_zap_pending 0 uas-tag 2 inflight: CMD [ 406.998597] sd 1:0:0:0: [sdb] tag#21 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 406.998602] sd 1:0:0:0: [sdb] tag#22 uas_zap_pending 0 uas-tag 3 inflight: CMD [ 406.998606] sd 1:0:0:0: [sdb] tag#22 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 406.998611] sd 1:0:0:0: [sdb] tag#23 uas_zap_pending 0 uas-tag 4 inflight: CMD [ 406.998614] sd 1:0:0:0: [sdb] tag#23 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 407.125526] usb 2-2: reset SuperSpeedPlus Gen 2 USB device number 5 using xhci_hcd [ 407.149587] scsi host1: uas_eh_device_reset_handler success [ 407.149831] sd 1:0:0:0: [sdb] tag#20 FAILED Result: hostbyte=DID_RESET driverbyte=DRIVER_SENSE [ 407.149836] sd 1:0:0:0: [sdb] tag#20 Sense Key : Not Ready [current] [ 407.149841] sd 1:0:0:0: [sdb] tag#20 Add. Sense: Logical unit is in process of becoming ready [ 407.149846] sd 1:0:0:0: [sdb] tag#20 CDB: Write(10) 2a 00 06 46 41 10 00 04 00 00 [ 407.149851] blk_update_request: I/O error, dev sdb, sector 105267472 op 0x1:(WRITE) flags 0x5800 phys_seg 128 prio class 0 [ 407.149875] sd 1:0:0:0: [sdb] tag#21 FAILED Result: hostbyte=DID_RESET driverbyte=DRIVER_OK [ 407.149879] sd 1:0:0:0: [sdb] tag#21 CDB: Write(10) 2a 00 06 46 45 10 00 04 00 00 [ 407.149882] blk_update_request: I/O error, dev sdb, sector 105268496 op 0x1:(WRITE) flags 0x5800 phys_seg 128 prio class 0 [ 407.149892] sd 1:0:0:0: [sdb] tag#22 FAILED Result: hostbyte=DID_RESET driverbyte=DRIVER_OK [ 407.149895] sd 1:0:0:0: [sdb] tag#22 CDB: Write(10) 2a 00 06 46 4d 10 00 04 00 00 [ 407.149898] blk_update_request: I/O error, dev sdb, sector 105270544 op 0x1:(WRITE) flags 0x1800 phys_seg 128 prio class 0 [ 407.149908] sd 1:0:0:0: [sdb] tag#23 FAILED Result: hostbyte=DID_RESET driverbyte=DRIVER_OK [ 407.149911] sd 1:0:0:0: [sdb] tag#23 CDB: Write(10) 2a 00 06 46 49 10 00 04 00 00 [ 407.149914] blk_update_request: I/O error, dev sdb, sector 105269520 op 0x1:(WRITE) flags 0x5800 phys_seg 128 prio class 0 [ 407.149995] XFS (sdb1): log recovery write I/O error at daddr 0xc8 len 4096 error -5 [ 407.150323] XFS (sdb1): failed to locate log tail [ 407.150327] XFS (sdb1): log mount/recovery failed: error -5 [ 407.150511] XFS (sdb1): log mount failed