Hello, I was reviewing a problem I was hitting with one of my boxes to connect external drives. The hard disk was working fine when it was under the original laptop that it belonged to and also works fine if I move it to a different usb box. I think it's an issue with this box and it seems a common issue as reported in other places: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742318 https://unix.stackexchange.com/questions/441668/debian-usb3-hdd-uas-i-o-errors https://www.raspberrypi.org/forums/viewtopic.php?t=245931 https://www.raspberrypi.org/forums/viewtopic.php?t=237829 https://forum.manjaro.org/t/usb-disk-not-working-in-a-usb3-0-port/50736 In summary, the disk works fine at the start but, after leaving it idle some minutes, it reports and I/O error and gets remounted because of that. Errors are like: [243037.109604] Buffer I/O error on dev sdc1, logical block 15262021, async page read [243038.045009] Buffer I/O error on dev sdc1, logical block 15262021, async page read [243038.750870] Buffer I/O error on dev sdc1, logical block 15262021, async page read or also: [243416.635232] Buffer I/O error on dev sdd1, logical block 15262021, async page read [243172.126230] scsi 2:0:0:0: Direct-Access USB 3.0 0 PQ: 0 ANSI: 6 [243172.126564] sd 2:0:0:0: Attached scsi generic sg2 type 0 [243172.127195] sd 2:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/466 GiB) [243172.127332] sd 2:0:0:0: [sdc] Write Protect is off [243172.127333] sd 2:0:0:0: [sdc] Mode Sense: 43 00 00 00 [243172.127494] sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [243172.127732] sd 2:0:0:0: [sdc] Optimal transfer size 33553920 bytes [243172.166800] sdc: sdc1 [243172.185089] sd 2:0:0:0: [sdc] Attached SCSI disk [243416.635232] Buffer I/O error on dev sdd1, logical block 15262021, async page read [243616.891249] usb 2-3: USB disconnect, device number 6 [243616.893787] sd 2:0:0:0: [sdc] Synchronizing SCSI cache [243617.013118] sd 2:0:0:0: [sdc] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK [243617.268239] usb 2-3: new SuperSpeed Gen 1 USB device number 7 using xhci_hcd [243617.281559] usb 2-3: New USB device found, idVendor=174c, idProduct=55aa, bcdDevice= 1.00 [243617.281560] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 [243617.281561] usb 2-3: Product: 3.0 [243617.281562] usb 2-3: Manufacturer: USB [243617.281562] usb 2-3: SerialNumber: 000000000001 [243617.285598] scsi host2: uas [243617.285946] scsi 2:0:0:0: Direct-Access USB 3.0 0 PQ: 0 ANSI: 6 [243617.286547] sd 2:0:0:0: Attached scsi generic sg2 type 0 [243617.287053] sd 2:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/466 GiB) [243617.287171] sd 2:0:0:0: [sdc] Write Protect is off [243617.287172] sd 2:0:0:0: [sdc] Mode Sense: 43 00 00 00 [243617.287332] sd 2:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [243617.287522] sd 2:0:0:0: [sdc] Optimal transfer size 33553920 bytes [243619.819009] sdc: sdc1 [243619.835850] sd 2:0:0:0: [sdc] Attached SCSI disk I am running kernel 5.3.11 on Gentoo and I attach the lsusb -v output for this device. What could I do to contribute to get this problem solved? Any concrete test? I would like to get this solved as, sadly, it seems that many hard disk boxes include this chipset and cause this issues. Thanks a lot
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