Re: [PATCH] SMP race in ext2 - metadata corruption.

[Andi Kleen]

On Thu, Apr 26, 2001 at 01:08:25PM -0700, Linus Torvalds wrote:
> Note that I think all these arguments are fairly bogus.  Doing things like
> "dump" on a live filesystem is stupid and dangerous (in my opinion it is
> stupid and dangerous to use "dump" at _all_, but that's a whole 'nother
> discussion in itself), and there really are no valid uses for opening a
> block device that is already mounted. More importantly, I don't think
> anybody actually does.

You can use LVM snapshot volumes to do it safely.

-Andi
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