This problem occurs in Fedora 26 Alpha 4.11.0-0.rc5.git0.1.fc26.x86_64 kernel. 4KB sector disk [root@test04 ~]# cat /sys/block/sdd/queue/physical_block_size 4096 [root@test04 ~]# cat /sys/block/sdd/queue/logical_block_size 512 [root@test04 ~]# cat /sys/block/sdd/queue/optimal_io_size 33553920 [root@test04 ~]# cat /sys/block/sdd/queue/minimum_io_size 4096 512B sector disk [root@test04 ~]# cat /sys/block/sde/queue/physical_block_size 512 [root@test04 ~]# cat /sys/block/sde/queue/logical_block_size 512 [root@test04 ~]# cat /sys/block/sde/queue/optimal_io_size 33553920 [root@test04 ~]# cat /sys/block/sde/queue/minimum_io_size 512 ==== dmesg uas probe =============================== [ 14.599778] usb 2-3.1: USB disconnect, device number 3 [ 14.599780] usb 2-3.1.4: USB disconnect, device number 6 [ 14.599782] usb 2-3.1.4.1: USB disconnect, device number 7 [ 14.627609] usb 2-3.1.4.2: USB disconnect, device number 8 [ 14.772222] usb 2-3.2: USB disconnect, device number 4 [ 250.074028] usb 3-2: new SuperSpeed USB device number 2 using xhci_hcd [ 250.170483] usb 3-2: New USB device found, idVendor=2109, idProduct=0813 [ 250.170488] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 250.170491] usb 3-2: Product: USB3.0 Hub [ 250.170494] usb 3-2: Manufacturer: VIA Labs, Inc. [ 250.172733] hub 3-2:1.0: USB hub found [ 250.172952] hub 3-2:1.0: 4 ports detected [ 250.768633] usb 2-2: new high-speed USB device number 9 using xhci_hcd [ 250.938243] usb 2-2: New USB device found, idVendor=2109, idProduct=2813 [ 250.938245] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [ 250.938246] usb 2-2: Product: USB2.0 Hub [ 250.938248] usb 2-2: Manufacturer: VIA Labs, Inc. [ 250.939668] hub 2-2:1.0: USB hub found [ 250.940530] hub 2-2:1.0: 4 ports detected [ 311.076093] usb 3-2.4: new SuperSpeed USB device number 3 using xhci_hcd [ 311.088982] usb 3-2.4: New USB device found, idVendor=0584, idProduct=0276 [ 311.088984] usb 3-2.4: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 311.088985] usb 3-2.4: Product: RS-EC32-U31R RAID1 [ 311.088986] usb 3-2.4: Manufacturer: RATOC Systems,Inc. [ 311.088987] usb 3-2.4: SerialNumber: 32311643000A [ 311.099686] usbcore: registered new interface driver usb-storage [ 311.103616] scsi host4: uas [ 311.103658] usbcore: registered new interface driver uas [ 311.529050] scsi 4:0:0:0: Direct-Access HGST HDN 724040ALE640 MJAO PQ: 0 ANSI: 6 [ 311.551404] sd 4:0:0:0: Attached scsi generic sg2 type 0 [ 311.556400] sd 4:0:0:0: [sdc] 7813988353 512-byte logical blocks: (4.00 TB/3.64 TiB) [ 311.556401] sd 4:0:0:0: [sdc] 4096-byte physical blocks [ 311.556525] sd 4:0:0:0: [sdc] Write Protect is off [ 311.556526] sd 4:0:0:0: [sdc] Mode Sense: 43 00 00 00 [ 311.556685] sd 4:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 311.610063] sdc: sdc1 [ 311.669432] sd 4:0:0:0: [sdc] Attached SCSI disk [ 311.864341] device-mapper: table: 253:2: adding target device sdc1 caused an alignment inconsistency: physical_block_size=4096, logical_block_size=512, alignment_offset=0, start=33553920 [ 311.864342] device-mapper: table: 253:2: adding target device sdc1 caused an alignment inconsistency: physical_block_size=4096, logical_block_size=512, alignment_offset=0, start=33553920 [ 336.660255] usb 3-2.3: new SuperSpeed USB device number 4 using xhci_hcd [ 336.673142] usb 3-2.3: New USB device found, idVendor=0584, idProduct=0276 [ 336.673144] usb 3-2.3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 336.673145] usb 3-2.3: Product: RS-EC32-U31R RAID1 [ 336.673147] usb 3-2.3: Manufacturer: RATOC Systems,Inc. [ 336.673148] usb 3-2.3: SerialNumber: 32311643007F [ 336.678007] scsi host5: uas [ 337.083352] scsi 5:0:0:0: Direct-Access HGST HDN 724040ALE640 MJAO PQ: 0 ANSI: 6 [ 337.100578] sd 5:0:0:0: Attached scsi generic sg3 type 0 [ 337.106973] sd 5:0:0:0: [sdd] 7813988353 512-byte logical blocks: (4.00 TB/3.64 TiB) [ 337.106974] sd 5:0:0:0: [sdd] 4096-byte physical blocks [ 337.107097] sd 5:0:0:0: [sdd] Write Protect is off [ 337.107097] sd 5:0:0:0: [sdd] Mode Sense: 43 00 00 00 [ 337.107262] sd 5:0:0:0: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 337.195187] sd 5:0:0:0: [sdd] Attached SCSI disk [ 348.468155] usb 3-2.1: new SuperSpeed USB device number 5 using xhci_hcd [ 348.480858] usb 3-2.1: New USB device found, idVendor=0480, idProduct=a006 [ 348.480860] usb 3-2.1: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 348.480862] usb 3-2.1: Product: ASM1351 [ 348.480863] usb 3-2.1: Manufacturer: Asmedia [ 348.480864] usb 3-2.1: SerialNumber: 123456789116 [ 348.484753] scsi host6: uas [ 348.485135] scsi 6:0:0:0: Direct-Access ASMT 2135 0 PQ: 0 ANSI: 6 [ 348.511359] sd 6:0:0:0: Attached scsi generic sg4 type 0 [ 348.511458] sd 6:0:0:0: [sde] Spinning up disk... [ 349.532209] . [ 350.556390] . [ 351.580536] . [ 352.604676] . [ 353.628784] . [ 354.652963] . [ 355.677096] . [ 356.701239] . [ 356.701311] ready [ 356.722300] sd 6:0:0:0: [sde] 976773168 512-byte logical blocks: (500 GB/466 GiB) [ 356.722411] sd 6:0:0:0: [sde] Write Protect is off [ 356.722413] sd 6:0:0:0: [sde] Mode Sense: 43 00 00 00 [ 356.722571] sd 6:0:0:0: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 356.727204] sde: sde1 [ 356.728023] sd 6:0:0:0: [sde] Attached SCSI disk [ 378.390343] usb 3-2.2: new SuperSpeed USB device number 6 using xhci_hcd [ 378.403284] usb 3-2.2: New USB device found, idVendor=174c, idProduct=1351 [ 378.403288] usb 3-2.2: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [ 378.403291] usb 3-2.2: Product: USB3.1 Device [ 378.403293] usb 3-2.2: Manufacturer: Generic [ 378.403295] usb 3-2.2: SerialNumber: 12345678912B [ 378.410036] scsi host7: uas [ 378.411280] scsi 7:0:0:0: Direct-Access ST2000DM 001-1CH164 0 PQ: 0 ANSI: 6 [ 378.434589] sd 7:0:0:0: Attached scsi generic sg5 type 0 [ 378.434996] sd 7:0:0:0: [sdf] 3907029168 512-byte logical blocks: (2.00 TB/1.82 TiB) [ 378.434997] sd 7:0:0:0: [sdf] 4096-byte physical blocks [ 378.435106] sd 7:0:0:0: [sdf] Write Protect is off [ 378.435107] sd 7:0:0:0: [sdf] Mode Sense: 43 00 00 00 [ 378.435272] sd 7:0:0:0: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 378.484995] sdf: sdf1 [ 378.485968] sd 7:0:0:0: [sdf] Attached SCSI disk [ 407.387390] ata1.00: Enabling discard_zeroes_data [ 407.580994] sde: sde1 [ 407.585529] sdf: sdf1 ==============================================================