Re: kern/38717: sysinst shouldn't create LFS file systems

[Alan Barrett <apb%cequrux.com@localhost>]

On Mon, 02 Jun 2008, David Holland wrote:
> On Mon, Jun 02, 2008 at 12:24:27AM +0100, Alan Barrett wrote:
>  > Twice recently I have noticed files that ended
>  > up with random binary content (of exactly the same size as the original
>  > file) after a crash.
> 
> That's expected behavior in ffs-without-softdep.

Maybe.  I had the impression that, after a crash, files would usually be
missing, or moved to lost+found, or still containing old content (or a
mixture of old and new content).

>  > ffs with -o async [...]
> ... cannot reasonably be expected to work.

If what you mean is "there are known bugs in this area", OK; but if you
mean "crashing is not a bug" then I disagree.  I expect the file system
to be left in a bad state if the machine crashes for some reason (due to
hardware failure or a kernel bug), but I do not expect the mere usage
of ffs-async to cause the machine to crash.

--apb (Alan Barrett)