linux-kernel - Re: Dell Studio 1536 needs pci=nocrs to boot.

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Date:	Tue, 3 Jan 2012 13:00:21 -0500
From:	Dave Jones <davej@...hat.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel <linux-kernel@...r.kernel.org>, x86@...nel.org
Subject: Re: Dell Studio 1536 needs pci=nocrs to boot.

On Tue, Jan 03, 2012 at 10:55:00AM -0700, Bjorn Helgaas wrote:
 > On Tue, Jan 3, 2012 at 10:30 AM, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:
 > > On Sun, 1 Jan 2012 15:53:54 +0100
 > > Ingo Molnar <mingo@...e.hu> wrote:
 > >
 > >>
 > >> * Dave Jones <davej@...hat.com> wrote:
 > >>
 > >> > Some machines don't boot unless passed pci=nocrs.
 > >> > (See https://bugzilla.redhat.com/show_bug.cgi?id=770308 for details of
 > >> >   one report. Waiting on dmidecode output for others).
 > >> >
 > >> > Currently there is a DMI whitelist, even though the default is on.
 > >> >
 > >> > This patch extends that dmi list to add a blacklist to automatically
 > >> > apply disable it when necessary.
 > >> >
 > >> > Signed-off-by: Dave Jones <davej@...hat.com>
 > >>
 > >> Acked-by: Ingo Molnar <mingo@...e.hu>
 > >>
 > >> Jesse, will you take this one?
 > >
 > > Yeah, I can take it.  Bjorn, any comment (I'll bounce over the
 > > original)?
 > 
 > This is a band-aid, and we'll have to extend the blacklist for other
 > machines, but it's the best we have right now, so I think it's the
 > right thing to do.
 > 
 > It's probably the same as
 > https://bugzilla.kernel.org/show_bug.cgi?id=31602 (Dell 1546) and
 > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/647043

There's at least one more dell (Seems that entire 'studio' product line
is affected) that I'm waiting on DMI data from.
Also a thinkpad that I have a patch pending for.

	Dave

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