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

From: Dave Jones
Date: Tue Jan 03 2012 - 13:00:32 EST


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@xxxxxxxxxxxxxxxx> wrote:
> > On Sun, 1 Jan 2012 15:53:54 +0100
> > Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> >>
> >> * Dave Jones <davej@xxxxxxxxxx> 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@xxxxxxxxxx>
> >>
> >> Acked-by: Ingo Molnar <mingo@xxxxxxx>
> >>
> >> 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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