linux-kernel - Re: [PATCH] x86,pci: detect end_bus_number according to acpi/e820 reserved

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Message-ID: <20080720064809.GA25439@elte.hu>
Date:	Sun, 20 Jul 2008 08:48:09 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>,
	Jack Howarth <howarth@...mo.msbb.uc.edu>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	Shaohua Li <shaohua.li@...el.com>
Subject: Re: [PATCH] x86,pci: detect end_bus_number according to acpi/e820
	reserved


* Jesse Barnes <jbarnes@...tuousgeek.org> wrote:

> On Friday, July 18, 2008 3:27 pm Yinghai Lu wrote:
> > On Fri, Jul 18, 2008 at 2:48 PM, Jack Howarth <howarth@...mo.msbb.uc.edu> 
> wrote:
> > > YH,
> > >  I'll test the new patch shortly. When I do, I'll put back in
> > > your debug patches to try to get a complete log with pci=verbose
> > > and initcall_debug with PCIEASPM disabled.
> >
> > tip tree has the two debug patches.
> >
> > > Hopefully the probing
> > > is done in the same general fashion with and without PCIEASPM so
> > > we can deduce what exactly is being probed when my MacBook Pro
> > > freezes during boot with PCIEASPM enabled. I consider the fact
> > > that booting 2.6.26 always freezes the kernel when PCIEASPM
> > > is enabled to be the more serious bug (since once Fedora ships
> > > 2.6.26 kernels I'll be stuck always building my own).
> >
> > another laptop : Acer ... suffer this problem too with ASPM...
> 
> Yeah, looks like we'll have to be more conservative about enabling 
> ASPM.  Maybe a whitelist approach would be better...

all my testsystems boot fine with it. Maybe a blacklist? :)

	Ingo
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