From: Nick Bowler <nbowler@elliptictech.com>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: David Airlie <airlied@linux.ie>, Ben Skeggs <bskeggs@redhat.com>,
Martin Peres <martin.peres@labri.fr>,
dri-devel@lists.freedesktop.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 3.4-rc4
Date: Sun, 22 Apr 2012 20:05:54 -0400 [thread overview]
Message-ID: <20120423000554.GA893@elliptictech.com> (raw)
In-Reply-To: <20120422164023.GA32342@elliptictech.com>
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:
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/)
next prev parent reply other threads:[~2012-04-23 0:05 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-21 22:43 Linux 3.4-rc4 Linus Torvalds
2012-04-22 4:07 ` Nick Bowler
2012-04-22 4:51 ` Linus Torvalds
2012-04-22 7:26 ` Dave Airlie
2012-04-22 16:42 ` Nick Bowler
2012-04-23 3:16 ` Ben Skeggs
2012-04-22 16:40 ` Nick Bowler
2012-04-22 18:20 ` Geert Uytterhoeven
2012-04-23 0:05 ` Nick Bowler [this message]
2012-04-23 2:45 ` Konrad Rzeszutek Wilk
2012-04-24 1:03 ` Nick Bowler
2012-04-24 15:11 ` Konrad Rzeszutek Wilk
2012-04-25 1:35 ` Nick Bowler
2012-04-25 2:56 ` Ben Skeggs
2012-04-27 5:20 ` Ben Skeggs
2012-04-28 0:39 ` Nick Bowler
2012-04-28 6:19 ` Alex Deucher
2012-04-28 15:33 ` Nick Bowler
2012-04-29 22:37 ` Dmitry Torokhov
2012-04-30 9:07 ` Maarten Maathuis
2012-04-30 11:01 ` Luca Tettamanti
2012-05-02 7:54 ` Jean Delvare
2012-05-02 11:31 ` Ben Skeggs
2012-05-04 5:08 ` Ben Skeggs
2012-05-04 14:12 ` Jean Delvare
2012-05-01 13:23 ` Nick Bowler
2012-05-01 15:09 ` Alan Cox
2012-05-01 15:31 ` Nick Bowler
2012-05-01 15:45 ` Alan Cox
2012-05-02 1:20 ` Nick Bowler
2012-05-04 9:20 ` Dave Airlie
2012-05-05 15:39 ` Nick Bowler
2012-04-22 8:38 ` Bjarke Istrup Pedersen
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