Date: Thu, 29 Sep 2005 12:37:18 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: Kris Kennaway <kris@obsecurity.org> Cc: Peter Edwards <peadar@FreeBSD.org>, cvs-src@FreeBSD.org, src-committers@FreeBSD.org, Pawel Jakub Dawidek <pjd@FreeBSD.org>, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_bio.c Message-ID: <200509291237.19873.jkim@FreeBSD.org> In-Reply-To: <20050929163350.GA53677@xor.obsecurity.org> References: <200509291037.j8TAbKdI010227@repoman.freebsd.org> <200509291200.29735.jkim@FreeBSD.org> <20050929163350.GA53677@xor.obsecurity.org>
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On Thursday 29 September 2005 12:33 pm, Kris Kennaway wrote: > On Thu, Sep 29, 2005 at 12:00:26PM -0400, Jung-uk Kim wrote: > > On Thursday 29 September 2005 09:03 am, Pawel Jakub Dawidek wrote: > > > On Thu, Sep 29, 2005 at 10:37:20AM +0000, Peter Edwards wrote: > > > +> peadar 2005-09-29 10:37:20 UTC > > > +> > > > +> FreeBSD src repository > > > +> > > > +> Modified files: > > > +> sys/kern vfs_bio.c > > > +> Log: > > > +> Close a race in biodone(), whereby the bio_done field of > > > the passed +> bio may have been freed and reassigned by the > > > wakeup before being +> tested after releasing the bdonelock. > > > +> > > > +> There's a non-zero chance this is the cause of a few of > > > the crashes +> knocking around with biodone() sitting in the > > > stack backtrace. > > > > > > Should this fix the panic on boot in vmware? > > > > I thought that might be it, too. I tried it with 6.0-BETA5 on > > QEMU but no change. :-( > > This patch is not part of 6.0-BETA5. I meant 6.0-BETA5 with patched kernel, of course. I am sorry about the confusion. Jung-uk Kim > Kris
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