Phantom USB device!

[John Vetterli]

On Mon, 3 Nov 2003, Peter M Garfield wrote:
> On Mon, 3 Nov 2003, Peter King wrote:
> > Well, I can't quite "write to it". That is: I see an ordinary directory
> > listing; I can apparently copy files to it; I can delete files from it.
> > But when I unplug the yepp, there the supposedly copied files aren't.
> I've had the same sort of problems at work on a Red Hat 7.3 box
> with an updated kernel (currently 2.4.20-20.7 according to uname).  If
> it's any comfort, at home on a Mandrake 9.x it works fine.  ("It" here
> for me is a USB keychain drive.)
> One way the problem shows up for me is md5sums on (large) files copied
> to the USB device.  For small files, it will match, but not for larger
> files.  I haven't figured out the size cut-off because....
> I've figured out a (truly awful) workaround for my office machine: it
> seems to work immediately after a reboot. ...

I've had similar problems with the 2.4.20 kernel and slack 9.0.  I've
found that "rmmod usb-storage" after unmounting and disconnecting the
device keeps things working properly.  It's an ugle fix, but not as ugle
as rebooting.

JV
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