mount * 2 + umount + lookup = GEOM panic
Kris Kennaway
kris at obsecurity.org
Fri Aug 18 19:14:58 UTC 2006
On Fri, Aug 18, 2006 at 10:46:57PM +0400, Yar Tikhiy wrote:
> Hi all,
>
> Here is a recipe how to panic CURRENT's GENERIC kernel from the
> command line:
>
> (enter single-user mode)
>
> # mount -r /usr
> # mount -r /usr
> # umount /usr
> # cat
> [panic!]
>
> As shown below, the panic happens in GEOM when /bin/sh searches
> $PATH for cat(1). The recipe works in 6-STABLE, too. Is anybody
> interested? Thanks!
This has been reported a number of times before, apparently it's
difficult to solve.
Kris
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