linux-kernel - Re: [stable] [Regression, post-rc2] Commit a5ee4eb7541 breaks OpenGL on RS780 (was: Re: Linux 2.6.34-rc3)

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Date:	Wed, 31 Mar 2010 13:34:47 -0700
From:	Greg KH <greg@...ah.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux PCI <linux-pci@...r.kernel.org>,
	Greg KH <gregkh@...e.de>, Clemens Ladisch <clemens@...isch.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Alex Deucher <alexdeucher@...il.com>,
	dri-devel@...ts.sourceforge.net, Dave Airlie <airlied@...il.com>,
	stable@...nel.org
Subject: Re: [stable] [Regression, post-rc2] Commit a5ee4eb7541 breaks
	OpenGL on RS780 (was: Re: Linux 2.6.34-rc3)

On Tue, Mar 30, 2010 at 11:16:45PM +0200, Rafael J. Wysocki wrote:
> On Tuesday 30 March 2010, Linus Torvalds wrote:
> ...
> > Other than that? Random fixes and updates all over. Mostly drivers and 
> > filesystems, and mostly fairly small things. If you had PCI resource 
> > conflict problems with the early -rc's due to the _CRS window thing, for 
> > example, that should hopefully be fixed. See the appended shortlog for 
> > other details.
> 
> ...
> 
> > Clemens Ladisch (4):
> >       firewire: core: fw_iso_resource_manage: fix error handling
> >       firewire: ohci: add cycle timer quirk for the TI TSB12LV22
> >       ALSA: cmipci: work around invalid PCM pointer
> >       PCI quirk: RS780/RS880: work around missing MSI initialization
> 
> This one (commit a5ee4eb7541) broke OpenGL acceleration on my new test box
> which happens to have a RS780.
> 
> The symptom is that every operation involving the GPU is _very_ slow, so the
> window manager eventually disables compositing.  Reverting this commit makes
> things work flawlessly again.
> 
> So, please revert.
> 
> BTW, I don't think it's a -stable material.

Ok, I'll go drop it.

thanks,

greg k-h
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