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SubjectRe: Linux 3.4-rc4
On Sun, Apr 22, 2012 at 08:05:54PM -0400, Nick Bowler wrote:
> On 2012-04-22 12:40 -0400, Nick Bowler wrote:
> > On 2012-04-21 21:51 -0700, Linus Torvalds wrote:
> > > Nick, I realize you had trouble with a bisection already, but it might
> > > really be worth trying again. Do a
> > >
> > > git bisect visualize
> > >
> > > and try to pick a good commit (avoding the problems you hit) when you
> > > hit a problem, and then do
> > >
> > > git reset --hard <that-point>
> > >
> > > to force bisection to try another place. That way you can sometimes
> > > avoid the problem spots, and continue the bisection.
> >
> > Unfortunately, I think the whole swath of commits bisect wants to test
> > are broken (as in, they panic before I get to see whether or not the VGA
> > is working), because the commit from which most of the drm trees were
> > based appears to be broken. Nevertheless, I've included the new bisect
> > log (four new commits marked skip as opposed to last time). I've also
> > included the boot log from a crashing kernel, in case someone recognizes
> > how I can avoid this during bisection. Note that this crash is *not* a
> > regression that exists in current mainline -- bisecting this issue was
> > the first time I had ever seen it.
>
> Following up on the above, the commit which introduces the panics during
> boot is this one:

I think

dea7e0a ttm: fix agp since ttm tt rework

fixed that.
>
> commit 8e7e70522d760c4ccd4cd370ebfa0ba69e006c6e
> Author: Jerome Glisse <jglisse@redhat.com>
> Date: Wed Nov 9 17:15:26 2011 -0500
>
> drm/ttm: isolate dma data from ttm_tt V4
>
> Move dma data to a superset ttm_dma_tt structure which herit
> from ttm_tt. This allow driver that don't use dma functionalities
> to not have to waste memory for it.
>
> V2 Rebase on top of no memory account changes (where/when is my
> delorean when i need it ?)
> V3 Make sure page list is initialized empty
> V4 typo/syntax fixes
>
> Signed-off-by: Jerome Glisse <jglisse@redhat.com>
> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
>
> and the previous commit (3230cfc34fca: "drm/nouveau: enable the ttm dma
> pool when swiotlb is active V3") works properly.
>
> Sometime this week I suppose I'll try to track down the commit which
> fixed the crashes...
>
> Cheers,
> --
> Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel


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