On Wed, 24 Feb 2016, Anil Nair wrote: > >> [ 3793.220454] scsi 5:0:0:0: Direct-Access Kingston DataTraveler > >> 2.0 1.00 PQ: 0 ANSI: 4 > >> [ 3793.220543] device: 'target5:0:0': device_add > > ... > >> [ 3922.968041] usb 1-3: reset high-speed USB device number 5 using ehci-pci > >> [ 3923.100302] usb 1-3: device firmware changed > > > > That's the problem right there. Notice that there's a two-minute delay > > after the device is plugged in before the error occurs. What happened > > during that delay? > > > >> I am unable to mount it.What could be the issue? Can I recover it? > > > > More information is needed. Please capture a usbmon trace and post the > > result (see Documentation/usb/usbmon.txt in the kernel source for > > instructions). > > As requested I am posting the usbmon trace, I am attaching the usbmon > trace as i don't want to clog the email. > > Also this occured while creating partition using fdisk and formatting > it using mke2fs command, > > [ 473.037204] Buffer I/O error on dev sdc1, logical block 0, lost > async page write > [ 473.037215] Buffer I/O error on dev sdc1, logical block 1, lost > async page write > [ 473.037220] Buffer I/O error on dev sdc1, logical block 2, lost > async page write > [ 473.037225] Buffer I/O error on dev sdc1, logical block 3, lost > async page write > [ 473.037230] Buffer I/O error on dev sdc1, logical block 4, lost > async page write > [ 473.037235] Buffer I/O error on dev sdc1, logical block 5, lost > async page write > [ 473.037245] Buffer I/O error on dev sdc1, logical block 6, lost > async page write > [ 473.037248] Buffer I/O error on dev sdc1, logical block 7, lost > async page write > [ 473.037250] Buffer I/O error on dev sdc1, logical block 8, lost > async page write > [ 473.037253] Buffer I/O error on dev sdc1, logical block 9, lost > async page write > [ 479.588081] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 486.276063] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 492.964036] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 499.652044] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 506.340045] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 513.028049] usb 1-3: reset high-speed USB device number 5 using ehci-pci > [ 513.161249] sd 5:0:0:0: [sdc] FAILED Result: hostbyte=DID_ERROR > driverbyte=DRIVER_OK > [ 513.161257] sd 5:0:0:0: [sdc] CDB: Write(10) 2a 00 00 00 08 f0 00 00 f0 00 > [ 513.161260] blk_update_request: I/O error, dev sdc, sector 2288 > [ 513.161265] buffer_io_error: 20 callbacks suppressed The usbmon trace shows the problem here: ffff8800da6c59c0 3935367775 S Bo:1:006:2 -115 31 = 55534243 ed020000 00080000 00000a2a 00000000 00000004 00000000 000000 ffff8800da6c59c0 3935367918 C Bo:1:006:2 0 31 > ffff8800b226ef00 3935367974 S Bo:1:006:2 -115 2048 = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffff8800b226ef00 3941733001 C Bo:1:006:2 -71 1024 > This is a WRITE(16) command trying to transfer 2048 bytes to the flash drive. The command failed with error -71 after only 1024 bytes were sent. This happened consistently, every time the computer tried to write to the drive. -71 is a low-level hardware error. It means the flash drive isn't working right. You can try formatting it on a different computer, to rule out the possibility of a problem in your computer's USB controller. But if that doesn't work either then I think the drive is hopeless -- it can be read but not written. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
