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SubjectRe: Linux 2.4.0-test8 and swap/journaling fs on raid
Hi!

> > > On Wednesday September 27, cservin@cromagnon.com wrote:
> > > > I was just wondering if the issues with swap on a raid device and with using a
> > > > journaling fs on a raid device had been fixed in the latest 2.4.0-test
> > > > kernels?
> > >
> > > Yes. md in 2.4 doesn't do interesting things with the buffer cache,
> > > so swap and journaling filesystems should have no issues with it.
> >
> > That is not neccessarily enough. nbd also does not play with buffer cache,
> > still you can't swap onto it.
>
> True.
> However the reason that you cannot swap to RAID1/5 in 2.2 +
> raid-patches is that it does interesting things with the buffer cache
> while reconstructing drives.
> As 2.4 doesn't, the reason is removed, and you can swap to it.

Are you sure there are no deadlock-when-low-on-memory bugs hiding
somewhere? swap over nbd also *seems* to work.

--
The best software in life is free (not shareware)! Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+
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