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Re: kern/42228: Kernel deadlock prevents further file system access
The following reply was made to PR kern/42228; it has been noted by GNATS.
From: Matthias Scheler <tron%zhadum.org.uk@localhost>
Subject: Re: kern/42228: Kernel deadlock prevents further file system access
Date: Tue, 15 Jun 2010 22:18:15 +0100
On Sun, Oct 25, 2009 at 02:20:04PM +0000, Manuel Bouyer wrote:
> > And I don't understand
> > why that would happen frequently on one of my 24/7 NetBSD 5.0_STABLE
> > systems but not on the other, they both use FFS. Is it e.g. more likely
> > to happen on systems with multiple CPU cores?
> Yes, multiple CPUs will make things worse, as does using WAPBL
> (WAPBL is unusable for me on systems using rsync for example).
I had two deadlocks today. It seems that having a lot of e-mails in
"/var/spool/postfix" (> 3,000 in this case) triggers the problem
quite easily. :-(
Matthias Scheler http://zhadum.org.uk/
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