Re: [Intel-gfx] [bisected] i915: linux-2.6.32-rc3+ regression

From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Sergei Trofimovich <slyich@gmail.com>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Dave Airlie <airlied@redhat.com>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [bisected] i915: linux-2.6.32-rc3+ regression
Date: Sat, 10 Oct 2009 23:47:04 +0200	[thread overview]
Message-ID: <200910102347.04579.rjw@sisk.pl> (raw)
In-Reply-To: <1255210017.3692.24.camel@maxim-laptop>

On Saturday 10 October 2009, Maxim Levitsky wrote:
> On Sat, 2009-10-10 at 21:37 +0300, Sergei Trofimovich wrote: 
> > Hi!
> > 
> > After syncing git tree to bd381934bf13ccb1af2813ae26c6fe00ec85d254
> > I've experienced pixel color corruption in Xorg.
> > Some of pixels (not all) have abnormal colors seen on images like this:
> > http://trofimeus.narod.ru/2009-10-09-22-00-17.png [1.5M]
> > (you won't see any problem until you run -rc3+ kernel).
> > 
> > I've bisected it[2] and found offending commit[1].
> > My hardware is HP Compaq 2510p laptop:
> > 00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
> > 
> > Do you need more info?
> > 
> > Thanks!
> > 
> > [1] offending commit
> > > 068143d38804825d59d951a192cfadd2e22f457d is the first bad commit
> > > commit 068143d38804825d59d951a192cfadd2e22f457d
> > > Author: Dave Airlie <airlied@redhat.com>
> > > Date:   Mon Oct 5 09:58:02 2009 +1000
> > > 
> > >     drm/fb: add setcmap and fix 8-bit support.
> > >     
> > >     This adds support for the setcmap api and fixes the 8bpp
> > >     support at least on radeon hardware. It adds a new load_lut
> > >     hook which can be called once the color map is setup.
> > >     
> > >     Signed-off-by: Dave Airlie <airlied@redhat.com>
> > 
> > [2] bisect log:
> > :040000 040000 9334e1ee9d528eaa5babd419bd53b40417e65f0f 7e06eb50488482efd38ac243080c9f27ee8682ec M   drivers
> > :040000 040000 31c8cb95831669746c0ee2ff8e34d15dc6c49b0e 0523107fc14ca0bb6914b93ea56dab20c741d61c M   include
> > git bisect start
> > # bad: [bd381934bf13ccb1af2813ae26c6fe00ec85d254] Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rol
> > and/infiniband
> > git bisect bad bd381934bf13ccb1af2813ae26c6fe00ec85d254
> > # good: [374576a8b6f865022c0fd1ca62396889b23d66dd] Linux 2.6.32-rc3
> > git bisect good 374576a8b6f865022c0fd1ca62396889b23d66dd
> > # bad: [1c6e6d91b22c4271e8a5dab559a08cb005a77073] Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/air
> > lied/drm-2.6
> > git bisect bad 1c6e6d91b22c4271e8a5dab559a08cb005a77073
> > # good: [d8e7b2b3ac5319fcee616488c628c2bbe7e2937b] Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/ke
> > rnel/git/tmlind/linux-omap-2.6
> > git bisect good d8e7b2b3ac5319fcee616488c628c2bbe7e2937b
> > # good: [185974dd596e67e73906790c2a4a4579d75911e6] drm: Delete the DRM_DEBUG_KMS in drm_mode_cursor_ioctl
> > git bisect good 185974dd596e67e73906790c2a4a4579d75911e6
> > # bad: [01ceae8edd7a0a6d8588dc103ad9f55e2c52cae9] drm/radeon/kms: Fix RS600/RV515/R520/RS690 IRQ
> > git bisect bad 01ceae8edd7a0a6d8588dc103ad9f55e2c52cae9
> > # bad: [b8c00ac5b50b54491657f8b6740db1df50149944] drm/fb: add more correct 8/16/24/32 bpp fb support.
> > git bisect bad b8c00ac5b50b54491657f8b6740db1df50149944
> > # bad: [068143d38804825d59d951a192cfadd2e22f457d] drm/fb: add setcmap and fix 8-bit support.
> > git bisect bad 068143d38804825d59d951a192cfadd2e22f457d
> > # good: [dfee5614e4d83a32cef9193a8b19bc1d8900f93d] drm/radeon/kms: respect single crtc cards, only create one crtc. (v2)
> > git bisect good dfee5614e4d83a32cef9193a8b19bc1d8900f93d
> > 
> > 
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> 
> I found that today too.
> I had filled a bugreport.
> https://bugs.freedesktop.org/show_bug.cgi?id=24444

Would you please notify me about _kernel_ regression reports filed at
freedesktop.org?

Thanks,
Rafael