kernel panic when unmount removed usbdrive

[Torfinn Ingolfsen]

On Thu, 28 Feb 2008 09:27:51 -0600
Octavian Covalschi <octavian.covalschi at gmail.com> wrote:

> hi, i've got 2 kernel panics.. when tried to unmount already removed
> an usbdrive
> actually i have reported this  problem, but  after some google  found
> that this is not new :(
> 
> this problem is known at least for 1 year.. this is bad.

This problem has been known for a lot longer time.
However, "most people" only complain about it - and they also think it
is easy to fix this problem.

Well, it is not easy - in fact it is very hard to fix this problem. For
data on this, please search the mailing list archives of FreeBSD.

> anybody knows any work-around ?

Yes - the work around is this: don't do that!
Do _not_ remove any mass storage device before unmounting it.

If you can't learn to live with this workaround, please do not use
removable mass storage devices with FreeBSD.

HTH
-- 
Regards,
Torfinn Ingolfsen