On Die, 2013-05-07 at 02:05 +0000, Ming Lei wrote: > On Mon, May 6, 2013 at 9:15 PM, Robert <[email protected]> wrote: > > > > I installed your patched kernel. dmesg: > > >From the 'dmesg' log, we can find the USB reset has been vanished and > current failure might result from protocol error or target. IMO, usbmon on > the patched kernel might be helpful. > > > > > I'll try to run a monitor on the older machine later. > > With usbmon under the correct case(12.04), we may find what is abnormal > in protocol. > > > Thanks, > -- > Ming Lei >
dmesg: [13440409.632045] usb 1-1: new high speed USB device using ehci_hcd and address 5 [13440409.765251] usb 1-1: New USB device found, idVendor=14cd, idProduct=6116 [13440409.765259] usb 1-1: New USB device strings: Mfr=1, Product=3, SerialNumber=2 [13440409.765266] usb 1-1: Product: USB 2.0 SATA BRIDGE [13440409.765271] usb 1-1: Manufacturer: Super Top [13440409.765276] usb 1-1: SerialNumber: M6116018VF16 [13440409.765468] usb 1-1: configuration #1 chosen from 1 choice [13440409.765932] scsi7 : SCSI emulation for USB Mass Storage devices [13440409.766161] usb-storage: device found at 5 [13440409.766169] usb-storage: waiting for device to settle before scanning [13440414.764771] usb-storage: device scan complete [13440414.765386] scsi 7:0:0:0: Direct-Access WDC WD50 00BEVT-22A0RT0 PQ: 0 ANSI: 0 [13440414.767031] sd 7:0:0:0: Attached scsi generic sg3 type 0 [13440414.767576] sd 7:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/465 GiB) [13440414.768216] sd 7:0:0:0: [sdc] Write Protect is off [13440414.768227] sd 7:0:0:0: [sdc] Mode Sense: 03 00 00 00 [13440414.768235] sd 7:0:0:0: [sdc] Assuming drive cache: write through [13440414.769826] sd 7:0:0:0: [sdc] Assuming drive cache: write through [13440414.769867] sdc: sdc1 [13440414.784198] sd 7:0:0:0: [sdc] Assuming drive cache: write through [13440414.784247] sd 7:0:0:0: [sdc] Attached SCSI disk usbmon output attached -- Robert ** Attachment added: "mon.zip" https://bugs.launchpad.net/bugs/1176355/+attachment/3668852/+files/mon.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1176355 Title: Can't access USB external disk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1176355/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
