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Date:      Thu, 19 Oct 2006 03:04:24 +0300
From:      Giorgos Keramidas <keramida@freebsd.org>
To:        Martin Blapp <mb@imp.ch>
Cc:        cvs-src@freebsd.org, src-committers@freebsd.org, Tor Egge <tegge@freebsd.org>, cvs-all@freebsd.org
Subject:   Re: cvs commit: src/sys/kern kern_conf.c
Message-ID:  <20061019000424.GA1262@gothmog.pc>
In-Reply-To: <20061018234916.GA1711@gothmog.pc>
References:  <200610132049.k9DKnObw045731@repoman.freebsd.org> <20061015091459.V72308@godot.imp.ch> <20061018234916.GA1711@gothmog.pc>

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FWIW, reverting revision 1.199 of kern_conf.c locally fixes the
unkillable xterms, stuck in "devdrn", problem.

On 2006-10-19 02:49, Giorgos Keramidas <keramida@freebsd.org> wrote:
>
> Maybe it's not related, but all xterm's seem unkillable and blocked
> forever in "devdrn" here, in a build from 2006.10.18.15.56.11.
> 
> An earlier sync from 2006.10.13.12.45.54 didn't exhibit this behavior,
> so I guess there's something mildly buggy with this change?
> 
> On 2006-10-15 09:15, Martin Blapp <mb@imp.ch> wrote:
> > 
> > Cool, thank you !
> > 
> > Martin
> > 
> > Martin Blapp, <mb@imp.ch> <mbr@FreeBSD.org>
> > ------------------------------------------------------------------
> > ImproWare AG, UNIXSP & ISP, Zurlindenstrasse 29, 4133 Pratteln, CH
> > Phone: +41 61 826 93 00 Fax: +41 61 826 93 01
> > PGP: <finger -l mbr@freebsd.org>
> > PGP Fingerprint: B434 53FC C87C FE7B 0A18 B84C 8686 EF22 D300 551E
> > ------------------------------------------------------------------
> > 
> > On Fri, 13 Oct 2006, Tor Egge wrote:
> > 
> > >tegge       2006-10-13 20:49:24 UTC
> > >
> > > FreeBSD src repository
> > >
> > > Modified files:
> > >   sys/kern             kern_conf.c
> > > Log:
> > > Wait for thread count to reach zero in destroy_devl() even when no purge
> > > method is defined, to avoid memory being modified after free.
> > >
> > > Temporarily increase refcount in destroy_devl() to avoid a double free
> > > if dev_rel() is called while waiting for thread count to reach zero.
> > >
> > > Revision  Changes    Path
> > > 1.199     +6 -0      src/sys/kern/kern_conf.c



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