Re: MD(4)/vnode hangs resolved (?)

On Wed, Mar 10, 2004 at 06:30:13PM +0200, Ruslan Ermilov wrote:
> On Tue, Mar 09, 2004 at 08:39:49PM +0100, Poul-Henning Kamp wrote:
> > 
> > Those of you who have experienced that md(4) backed by vnodes hang your
> > systems, please try this patch:
> > 
> > 	http://phk.freebsd.dk/patch/md.patch
> > 
> [...]
> > This solves the case where the system get stuck in "wdrain" because
> > a md(4)/vnode device is relatively large compared to the buffer cache.
> > 
> I still have that script that causes the lockup.  When I get back
> home (should happen in less than an hour), I will give it a shot
> and let you know.  Thanks for tracking it down, "make release" on
> IA-64 will be grateful too!  ;)
> 
Hmm.  I tried to reproduce the deadlock today on my fresh 5.2-CURRENT
laptop without your patch, using that script from "make release", but
to no avail.  Still, I hope it fixes the issue.  Thanks again for
looking into it!


Cheers,
-- 
Ruslan Ermilov
FreeBSD committer
ru_at_FreeBSD.org