Re: locking patches for ufs_rename

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Sep 28, 2009 at 10:01:06PM +0300, Antti Kantee wrote:
> On Mon Sep 28 2009 at 16:43:16 +0200, Manuel Bouyer wrote:
> > On Mon, Sep 28, 2009 at 04:27:12PM +0200, Manuel Bouyer wrote:
> > > I found 2 problems that I send to david in private mail.
> > > I did a backport of these patches to netbsd-5. Running a rsync+cvs update
> > > on a dual-CPU system, I got:
> > 
> > I got another one, with more usefull info from ddb:
> > login: Reader / writer lock error: lockdebug_wantlock: locking against 
> > myself
> 
> This looks like the same backtrace as the one in 41417 and 42093 (which
> contains a userland program for repeating it).

Sure. The difference with 41417 is that we had a deadlock between two
thread, now a thread deadlock with itself. At last it's easier to
detect :)

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--