Subject: Re: kernel panic in nfs_reclaim (kern/17107)
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Jaromir Dolecek <email@example.com>
Date: 10/01/2002 09:14:48
vnodes are never freed. Perhaps the NFS mount code needs the vnode vreffed
to not have it reclaimed for something else behind its back?
der Mouse wrote:
[ Charset ISO-8859-1 unsupported, converting... ]
> > This carsh confuses me a little - if filesystem is unmounted,
> > shouldn't all vnodes associated with it be gone? If so, then how
> > comes this particular rogue vnode was still around?
> It seems likely to me that the problem is that the vnode *isn't* still
> around, but a pointer to it is. Is there code already in place to
> optionally have kernel malloc fill data blocks with junk in free()?
> It's a little more expensive, but it's usually effective at turning up
> use-after-free bugs like what I speculate this is.
> /~\ The ASCII der Mouse
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Jaromir Dolecek <jdolecek@NetBSD.org> http://www.NetBSD.org/
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