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Date:      Sat, 26 Sep 2009 08:27:36 +0930
From:      "Daniel O'Connor" <doconnor@gsoft.com.au>
To:        John Baldwin <jhb@freebsd.org>
Cc:        Attilio Rao <attilio@freebsd.org>, alc@freebsd.org, freebsd-stable@freebsd.org
Subject:   Re: 8.0-RC1 panic attaching ppc
Message-ID:  <200909260827.38494.doconnor@gsoft.com.au>
In-Reply-To: <200909250957.06252.jhb@freebsd.org>
References:  <200909232322.51060.doconnor@gsoft.com.au> <200909251650.16283.doconnor@gsoft.com.au> <200909250957.06252.jhb@freebsd.org>

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On Fri, 25 Sep 2009, John Baldwin wrote:
> On Friday 25 September 2009 3:20:05 am Daniel O'Connor wrote:
> > On Thu, 24 Sep 2009, John Baldwin wrote:
> > > Can you try this patch perhaps:
> > >
> > > Index: sys/amd64/isa/isa_dma.c
> > > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> > >=3D=3D --- isa_dma.c	(revision 197430)
> > > +++ isa_dma.c	(working copy)
> >
> > This patch fixes the panic for me.
> >
> > I haven't tried printing (don't have any device handy here).
>
> I wonder if pmap_extract(kernel_pmap) doesn't work with direct map
> addresses for some reason?  I kind of find that hard to believe
> actually.  Alan, the original panic was in pmap_extract(kernel_pmap,
> ...) calls in the isa_dma code.  My patch that "fixes" the panic just
> changes them to pmap_kextract().

Well, if you want to test it some how let me know :)

=2D-=20
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
  -- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C

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