Same thing happened to me:
A mounted USB drive with only one partition on it got really messed up. I had
the same thing happening to me a week before (that time killing a UFS and a
HFS+ partition) but was attributed it to an user error that time.
This time, I searched back in /var/log/messages and found this:
Feb 25 21:42:38 helium kernel: [286882.584017] usb 8-2: new high speed USB
device using ehci_hcd and address 21
Feb 25 21:42:38 helium kernel: [286882.717067] usb 8-2: configuration #1 chosen
from 1 choice
Feb 25 21:42:38 helium kernel: [286882.717582] hub 8-2:1.0: USB hub found
Feb 25 21:42:38 helium kernel: [286882.717624] hub 8-2:1.0: 4 ports detected
Feb 25 21:42:38 helium kernel: [286882.996129] usb 8-2.2: new low speed USB
device using ehci_hcd and address 22
Feb 25 21:42:38 helium kernel: [286883.109560] usb 8-2.2: configuration #1
chosen from 1 choice
Feb 25 21:42:38 helium kernel: [286883.113027] input: Logitech USB-PS/2 Optical
Mouse as /devices/pci0000:00/0000:00:1d.7/usb8/8-2/8-2.2/8-2.2:1.0/input/input16
Feb 25 21:42:38 helium kernel: [286883.152101] input,hidraw0: USB HID v1.10
Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:1d.7-2.2
Feb 25 21:42:38 helium kernel: [286883.240131] usb 8-2.3: new low speed USB
device using ehci_hcd and address 23
Feb 25 21:42:38 helium kernel: [286883.354165] usb 8-2.3: configuration #1
chosen from 1 choice
Feb 25 21:42:38 helium kernel: [286883.359277] input: Unicomp Endura Keyboard
as /devices/pci0000:00/0000:00:1d.7/usb8/8-2/8-2.3/8-2.3:1.0/input/input17
Feb 25 21:42:38 helium kernel: [286883.416158] input,hidraw1: USB HID v1.10
Keyboard [Unicomp Endura Keyboard ] on usb-0000:00:1d.7-2.3
Feb 25 21:45:07 helium kernel: [287032.053614] attempt to access beyond end of
device
Feb 25 21:45:07 helium kernel: [287032.053619] sdc1: rw=0, want=18310001848,
limit=976768002
Feb 25 21:45:07 helium kernel: [287032.055239] attempt to access beyond end of
device
Feb 25 21:45:07 helium kernel: [287032.055243] sdc1: rw=0, want=7309129216,
limit=976768002
Feb 25 21:45:07 helium kernel: [287032.072524] attempt to access beyond end of
device
I (re)attached a keyboard and mouse on an usb hub to the system there. This
seems to have messed up a lot of usb stuff (see the sdc1 stuff going wrong
directly following it - that didnt happen before).
The USB controllers on this machine are "USB Controller: Intel Corporation
82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)".
Unfortunately it can take quite some time until this becomes noticable because
of caching.
** Changed in: gnome-volume-manager (Ubuntu)
Status: Invalid => New
--
Ubuntu destroys filesystem on attached USB harddrive!
https://bugs.launchpad.net/bugs/68824
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