Subject: Re: vnd0 causes "locking against myself"
To: Frank van der Linden <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 10/04/1997 12:16:29
On Sat, 4 Oct 1997 20:44:34 +0200
Frank van der Linden <firstname.lastname@example.org> wrote:
Ok, I will look into it on Monday.
> On Sat, Oct 04, 1997 at 10:10:06AM -0700, Jason Thorpe wrote:
> > On Sat, 04 Oct 1997 12:33:41 -0400
> > "Perry E. Metzger" <email@example.com> wrote:
> > > Andrew Gillham writes:
> > > > And wham, it panics with "locking against myself."
> > >
> > > Ah. How old is your -current? A bug like this was fixed a couple of
> > > weeks ago...
> > Not really... it sounds like a vnode locking issue, not a vm_map locking
> > issue. the fact that the error messages are similar means nothing :-)
> It is a vnode locking issue. There was a PR on this a while ago, and
> it was looked into. Pk did a good analysis of the problem, and AFAIR
> a suggested fix is to remove locking calls at a certain spot in the
> vnd code, because that should be safe and prevent trouble.
> I can't remember the PR number at the moment. It would be good to fix
> it before 1.3
> - Frank
Jason R. Thorpe firstname.lastname@example.org
NASA Ames Research Center Home: +1 408 866 1912
NAS: M/S 258-6 Work: +1 415 604 0935
Moffett Field, CA 94035 Pager: +1 415 428 6939