I have two identical SATA to USB adapters (from Ugreen) one of which constantly disconnects and connects and or errors. It won't happen every single time but does most of the time.
I don't think it's a problem with the adapter because it works on another machine (both up-to-date Arch Linux).
dmesg for connect 2.5" HDD, mount, create folder, unmount, disconnect:
[Feb26 12:47] usb 3-2: new SuperSpeed USB device number 63 using xhci_hcd
[ +0.017190] usb 3-2: New USB device found, idVendor=174c, idProduct=1153, bcdDevice= 1.00
[ +0.000006] usb 3-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[ +0.000002] usb 3-2: Product: Ugreen Storage Device
[ +0.000001] usb 3-2: Manufacturer: Ugreen
[ +0.000002] usb 3-2: SerialNumber: 26A1EE832616
[ +0.003683] scsi host2: uas
[ +3.706650] scsi 2:0:0:0: Direct-Access TOSHIBA MQ01ABF050 0 PQ: 0 ANSI: 6
[ +0.001545] sd 2:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/466 GiB)
[ +0.000117] sd 2:0:0:0: [sdb] Write Protect is off
[ +0.000004] sd 2:0:0:0: [sdb] Mode Sense: 43 00 00 00
[ +0.000155] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ +0.000177] sd 2:0:0:0: [sdb] Preferred minimum I/O size 512 bytes
[ +0.000005] sd 2:0:0:0: [sdb] Optimal transfer size 33553920 bytes
[ +0.038490] sdb: sdb1
[ +0.000156] sd 2:0:0:0: [sdb] Attached SCSI disk
[Feb26 12:49] sd 2:0:0:0: [sdb] tag#11 uas_eh_abort_handler 0 uas-tag 1 inflight: CMD IN
[ +0.000007] sd 2:0:0:0: [sdb] tag#11 CDB: Read(10) 28 00 00 00 0a 08 00 01 f8 00
[ +0.019970] scsi host2: uas_eh_device_reset_handler start
[ +0.123628] usb 3-2: reset SuperSpeed USB device number 63 using xhci_hcd
[ +0.018044] scsi host2: uas_eh_device_reset_handler success
[ +2.295023] usb 3-2: USB disconnect, device number 63
[ +0.000253] sd 2:0:0:0: [sdb] tag#8 uas_zap_pending 0 uas-tag 1 inflight: CMD
[ +0.000004] sd 2:0:0:0: [sdb] tag#8 CDB: Write(10) 2a 00 00 00 08 00 00 00 01 00
[ +0.000025] sd 2:0:0:0: [sdb] tag#8 FAILED Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK cmd_age=0s
[ +0.000002] sd 2:0:0:0: [sdb] tag#8 CDB: Write(10) 2a 00 00 00 08 00 00 00 01 00
[ +0.000001] I/O error, dev sdb, sector 2048 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 2
[ +0.000008] I/O error, dev sdb, sector 2048 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 2
[ +0.000003] Buffer I/O error on dev sdb1, logical block 0, lost sync page write
[ +0.000642] device offline error, dev sdb, sector 34816 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 2
[ +0.000008] Buffer I/O error on dev sdb1, logical block 32768, lost async page write
[ +0.000007] device offline error, dev sdb, sector 36096 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 2
[ +0.000003] Buffer I/O error on dev sdb1, logical block 34048, lost async page write
[ +0.000003] device offline error, dev sdb, sector 36352 op 0x1:(WRITE) flags 0x0 phys_seg 109 prio class 2
[ +0.000004] Buffer I/O error on dev sdb1, logical block 34304, lost async page write
[ +0.000002] Buffer I/O error on dev sdb1, logical block 34305, lost async page write
[ +0.000002] Buffer I/O error on dev sdb1, logical block 34306, lost async page write
[ +0.000002] Buffer I/O error on dev sdb1, logical block 34307, lost async page write
[ +0.000003] Buffer I/O error on dev sdb1, logical block 34308, lost async page write
[ +0.000002] Buffer I/O error on dev sdb1, logical block 34309, lost async page write
[ +0.000002] Buffer I/O error on dev sdb1, logical block 34310, lost async page write
[ +0.000087] device offline error, dev sdb, sector 36461 op 0x1:(WRITE) flags 0x100000 phys_seg 147 prio class 2
[ +0.000210] device offline error, dev sdb, sector 2048 op 0x1:(WRITE) flags 0x800 phys_seg 1 prio class 2
[ +0.002275] device offline error, dev sdb, sector 36096 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ +0.000828] exFAT-fs (sdb1): error, failed to access to FAT (entry 0x00000007, err:-5)
[ +0.000007] exFAT-fs (sdb1): Filesystem has been set read-only
[ +0.032318] sd 2:0:0:0: [sdb] Synchronizing SCSI cache
[ +0.219940] sd 2:0:0:0: [sdb] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ +0.273437] usb 3-2: new SuperSpeed USB device number 64 using xhci_hcd
[ +0.017198] usb 3-2: New USB device found, idVendor=174c, idProduct=1153, bcdDevice= 1.00
[ +0.000007] usb 3-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[ +0.000002] usb 3-2: Product: Ugreen Storage Device
[ +0.000002] usb 3-2: Manufacturer: Ugreen
[ +0.000001] usb 3-2: SerialNumber: 26A1EE832616
[ +0.001637] usb-storage 3-2:1.0: USB Mass Storage device detected
[ +0.000174] scsi host2: usb-storage 3-2:1.0
[ +1.197468] scsi 2:0:0:0: Direct-Access TOSHIBA MQ01ABF050 0 PQ: 0 ANSI: 6
[ +0.000408] sd 2:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/466 GiB)
[ +0.000278] sd 2:0:0:0: [sdb] Write Protect is off
[ +0.000002] sd 2:0:0:0: [sdb] Mode Sense: 43 00 00 00
[ +0.000276] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ +0.122178] sdb: sdb1
[ +0.000132] sd 2:0:0:0: [sdb] Attached SCSI disk
Opposed to the working adapter on the same machine and port:
[ +3.196595] usb 3-2: new SuperSpeed USB device number 67 using xhci_hcd
[ +0.017231] usb 3-2: New USB device found, idVendor=174c, idProduct=1153, bcdDevice= 1.00
[ +0.000005] usb 3-2: New USB device strings: Mfr=2, Product=3, SerialNumber=1
[ +0.000002] usb 3-2: Product: Ugreen Storage Device
[ +0.000002] usb 3-2: Manufacturer: Ugreen
[ +0.000001] usb 3-2: SerialNumber: 26A1EE8303F0
[ +0.004752] scsi host2: uas
[ +3.680414] scsi 2:0:0:0: Direct-Access TOSHIBA MQ01ABF050 0 PQ: 0 ANSI: 6
[ +0.001546] sd 2:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/466 GiB)
[ +0.000076] sd 2:0:0:0: [sdb] Write Protect is off
[ +0.000003] sd 2:0:0:0: [sdb] Mode Sense: 43 00 00 00
[ +0.000156] sd 2:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ +0.000126] sd 2:0:0:0: [sdb] Preferred minimum I/O size 512 bytes
[ +0.000001] sd 2:0:0:0: [sdb] Optimal transfer size 33553920 bytes
[ +0.048228] sdb: sdb1
[ +0.000163] sd 2:0:0:0: [sdb] Attached SCSI disk
[Feb26 12:51] sd 2:0:0:0: [sdb] Synchronizing SCSI cache
[ +0.223352] sd 2:0:0:0: [sdb] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ +0.026990] usb 3-2: USB disconnect, device number 67
lsusb -t:
/: Bus 001.Port 001: Dev 001, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 001: Dev 002, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 003: Dev 003, If 0, Class=Wireless, Driver=btusb, 12M
|__ Port 003: Dev 003, If 1, Class=Wireless, Driver=btusb, 12M
|__ Port 006: Dev 004, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 006: Dev 004, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 007: Dev 005, If 0, Class=Application Specific Interface, Driver=[none], 12M
|__ Port 007: Dev 005, If 1, Class=Chip/SmartCard, Driver=[none], 12M
|__ Port 007: Dev 005, If 2, Class=Chip/SmartCard, Driver=[none], 12M
|__ Port 007: Dev 005, If 3, Class=Vendor Specific Class, Driver=[none], 12M
/: Bus 002.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/11p, 480M
/: Bus 003.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/4p, 5000M
Is this a hardware or software problem? How can I fix it?
