[ltp] oops on usb-unmount

[Mendel Cooper]

Somewhat different occasional error messages (about one time in ten)
after dismounting USB drive:


Sep  5 23:41:59 localhost kernel: usb 6-1: USB disconnect, address 2
Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: scsi: Device offlined - not
ready
after error recovery
Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: SCSI error: return code =
0x10000
Sep  5 23:41:59 localhost kernel: end_request: I/O error, dev sda, sector
146614
4
Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: SCSI error: return code =
0x10000
Sep  5 23:41:59 localhost kernel: end_request: I/O error, dev sda, sector
160008
Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: rejecting I/O to device being
remo
ved
Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: rejecting I/O to device being
remo
ved
Sep  5 23:41:59 localhost kernel: Buffer I/O error on device sda2, logical
block
 599
 Sep  5 23:41:59 localhost kernel: lost page write due to I/O error on sda2
 Sep  5 23:41:59 localhost kernel: Aborting journal on device sda2.
 Sep  5 23:41:59 localhost kernel: journal commit I/O error
 Sep  5 23:41:59 localhost kernel: sd 0:0:0:0: rejecting I/O to device being
 remo
 ved

...

etc.


However, this doesn't seem to cause any problems or result in lost data.
I think it's because of an attempted flush-from/to-buffers *after*
the dismount. Error in USB drivers?