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Breaking X.Org on sparc (was: Bug#514418: [FIX]: ultra45 boot failing...)



Hi

We introduced a workaround by reverting a removal in the kernel to allow
the current X.Org on sparc work. However this patch is not supportable
and breaks all newer machines quite badly.

This means that we have to back it out again and the only question is if
we will do that for r0 or r1.

Bastian

----- Forwarded message from Bastian Blank <waldi@debian.org> -----

Package: linux-2.6
Version: 2.6.26-13
Severity: grave

I consider this RC. We'll break X.org either for r0 or r1.

debian-sparc: Please provide someone who wants to take over sparc
architecture maintenance of the Linux packages.

On Sat, Feb 07, 2009 at 10:45:31AM +0000, Jurij Smakov wrote:
> On Fri, Feb 06, 2009 at 11:11:44PM -0800, David Miller wrote:
> > 
> > The patch:
> > 
> > 	debian/patches/bugfix/sparc/arch_pci_hostcontroller_workaround.patch
> > 
> > causes ultra45 (and other PCI-Express based workstations) to
> > hard reset when the PCI bus is initially scanned by the kernel.
> > 
> > Please revert this patch from the debian kernel in Lenny and
> > anywhere else it appears.
> > 
> > The code in that patch creating dummy PCI root host controller nodes
> > is wrong and does nothing other than cause trouble.  If it fixes some
> > problem with the X server for PCI devices on sparc64 that problem
> > needs to be fixed some other way.
> > 
> > Thank you.
> 
> I believe that we are just a few days from Lenny release, so uploading 
> a new kernel and rebuilding debian-installer might not be an option 
> at this point, unfortunately. The best we can probably do is include 
> the fixed kernel in the point release, but that's up to kernel team 
> to decide. 

----- End forwarded message -----

-- 
Vulcans never bluff.
		-- Spock, "The Doomsday Machine", stardate 4202.1

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