On Tue, Jun 22, 2021 at 4:05 AM Patrick O'Callaghan
<pocallaghan(a)gmail.com> wrote:
One other data point and I'll leave it unless anything else turns up: I
switched the two drives in the dock and got this from dmesg:
[Tue Jun 22 10:52:03 2021] usb 4-3: USB disconnect, device number 2
[Tue Jun 22 10:52:03 2021] sd 6:0:0:0: [sdd] Synchronizing SCSI cache
[Tue Jun 22 10:52:03 2021] sd 6:0:0:0: [sdd] Synchronize Cache(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[Tue Jun 22 10:52:03 2021] sd 6:0:0:1: [sde] Synchronizing SCSI cache
[Tue Jun 22 10:52:03 2021] sd 6:0:0:1: [sde] Synchronize Cache(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[Tue Jun 22 10:52:27 2021] usb 4-3: new SuperSpeed Gen 1 USB device number 4 using
xhci_hcd
[Tue Jun 22 10:52:27 2021] usb 4-3: New USB device found, idVendor=174c, idProduct=55aa,
bcdDevice= 1.00
[Tue Jun 22 10:52:27 2021] usb 4-3: New USB device strings: Mfr=2, Product=3,
SerialNumber=1
[Tue Jun 22 10:52:27 2021] usb 4-3: Product: ASM1156-PM
[Tue Jun 22 10:52:27 2021] usb 4-3: Manufacturer: ASMT
[Tue Jun 22 10:52:27 2021] usb 4-3: SerialNumber: 00000000000000000000
[Tue Jun 22 10:52:27 2021] scsi host6: uas
[Tue Jun 22 10:52:27 2021] scsi 6:0:0:0: Direct-Access ASMT ASM1156-PM 0
PQ: 0 ANSI: 6
[Tue Jun 22 10:52:28 2021] scsi 6:0:0:1: Direct-Access ASMT ASM1156-PM 0
PQ: 0 ANSI: 6
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: Attached scsi generic sg4 type 0
[Tue Jun 22 10:52:28 2021] sd 6:0:0:1: Attached scsi generic sg5 type 0
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] 1953525168 512-byte logical blocks: (1.00
TB/932 GiB)
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] 4096-byte physical blocks
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] Write Protect is off
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] Mode Sense: 43 00 00 00
[Tue Jun 22 10:52:28 2021] sd 6:0:0:1: [sde] 1953525168 512-byte logical blocks: (1.00
TB/932 GiB)
[Tue Jun 22 10:52:28 2021] sd 6:0:0:1: [sde] 4096-byte physical blocks
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] Write cache: enabled, read cache: enabled,
doesn't support DPO or FUA
[Tue Jun 22 10:52:28 2021] sd 6:0:0:1: [sde] Write Protect is off
[Tue Jun 22 10:52:28 2021] sd 6:0:0:1: [sde] Mode Sense: 43 00 00 00
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] Optimal transfer size 33553920 bytes not a
multiple of physical block size (4096 bytes)
[Tue Jun 22 10:52:28 2021] sd 6:0:0:0: [sdd] Attached SCSI disk
[Tue Jun 22 10:52:58 2021] sd 6:0:0:1: tag#26 uas_eh_abort_handler 0 uas-tag 2 inflight:
IN
<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<***
[Tue Jun 22 10:52:58 2021] sd 6:0:0:1: tag#26 CDB: Mode Sense(6) 1a 00 08 00 04 00
[Tue Jun 22 10:52:58 2021] scsi host6: uas_eh_device_reset_handler start
[Tue Jun 22 10:52:58 2021] usb 4-3: reset SuperSpeed Gen 1 USB device number 4 using
xhci_hcd
[Tue Jun 22 10:52:58 2021] scsi host6: uas_eh_device_reset_handler success
[Tue Jun 22 10:52:58 2021] sd 6:0:0:1: [sde] Write cache: enabled, read cache: enabled,
doesn't support DPO or FUA
[Tue Jun 22 10:52:58 2021] sd 6:0:0:1: [sde] Optimal transfer size 33553920 bytes not a
multiple of physical block size (4096 bytes)
[Tue Jun 22 10:52:58 2021] sd 6:0:0:1: [sde] Attached SCSI disk
The uas message is again from device 6:0:0:1 as before, even though the
disks have been swapped. IOW the issue definitely comes from the dock,
not from the physical drives themselves.
I don't know if it's coming from the dock's usb chipset or the
usb-sata adapter on the drive. That adapter has a chipset on it also.
These are exactly the sorts of problems often resolved by putting both
drives on a USB hub, and then the hub into the dock.
--
Chris Murphy