On Sun, Jan 30, 2022 at 01:55:35PM -0500, James wrote: > What do these mean? > I get a lot of them in dmesg. > sda is > > [885862.931385] usb 2-2.1: cmd cmplt err -2 This means a data transfer was cancelled (probably because the device didn't respond after 30 seconds or so). > [885863.015996] usb 2-2.1: reset SuperSpeed USB device number 3 using > xhci_hcd > [885863.040134] scsi host0: uas_eh_device_reset_handler success > [893205.111118] sd 0:0:0:0: [sda] tag#1 uas_eh_abort_handler 0 uas-tag 4 > inflight: CMD IN > [893205.111147] sd 0:0:0:0: [sda] tag#1 CDB: Read(10) 28 00 51 20 ab 90 00 > 00 08 00 > [893205.127136] scsi host0: uas_eh_device_reset_handler start The command that was cancelled was a READ(10). After the cancellation, the device was reset so that it ought to be ready to accept a new command. It's not easy to tell why the command timed out. Maybe the drive encountered a problem and therefore wasn't able to execute the command. Or maybe it did execute the command but the response message going back to the computer got lost. Alan Stern > sda is Bus 002 Device 003: ID 0bc2:ab5a Seagate RSS LLC One Touch HDD USB3 > hard drive. > It's on a powered hub with the wireless adapter. > > > $ lsusb -tv > \/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M > ID 1d6b:0003 Linux Foundation 3.0 root hub > |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M > ID 05e3:0612 Genesys Logic, Inc. Hub > |__ Port 1: Dev 3, If 0, Class=Mass Storage, Driver=uas, 5000M > ID 0bc2:ab5a Seagate RSS LLC > |__ Port 3: Dev 4, If 0, Class=Vendor Specific Class, > Driver=mt76x2u, 5000M > ID 0e8d:7612 MediaTek Inc. MT7612U 802.11a/b/g/n/ac Wireless > Adapter
