Re: FFS: wrong superblock check ~> crash

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Oct 20, 2014 at 03:38:11PM +0200, Maxime Villard wrote:
> [...]
> With a broken superblock the kernel will read far beyond the allocated
> area, which mostly means it will crash.

Sure. There's lot of other ways to crash the kernel with a broken ffs.
In this specific case it's OK to return an error, but in the general
case I prefer to have the kernel panic when an inconsistency is
detected in ffs, than return an error and try to continue running with
a bogus filesystem.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--