linux-kernel - Re: [git pull] i915 regressions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20101003083238.55885ac3@jbarnes-x201>
Date:	Sun, 3 Oct 2010 08:32:38 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Chris Wilson <chris@...is-wilson.co.uk>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org
Subject: Re: [git pull] i915 regressions

On Sun, 03 Oct 2010 11:33:36 +0100
Chris Wilson <chris@...is-wilson.co.uk> wrote:

> Hi Linus,
> 
>   still a fair few regressions popping up in the i915 driver. Julia
> spotted an old bug in our error handling that could cause the
> aperture to be consumed with unpinnable buffers, Keith found that the
> wait-for-vblank handling changes were not correct for DP, Jesse
> failed at basic math (and nobody spotted the mistake!) and I

I think I'm innocent on this one!  I think Eric just introduced a merge
error when he pulled in the i915 changes for IPS.  I was using do_div
(which modifies the first arg), but Eric changed to to div_u64 to fix a
build error of some kind, but forgot to fix things up due to the
changed semantics.

At any rate, it's a good fix and gives the IPS driver good GMCH power
values again.

-- 
Jesse Barnes, Intel Open Source Technology Center
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/