linux-kernel - Re: x86: Increase PCIBIOS_MIN_IO to 0x1500 to fix nForce 4 suspend-to-RAM

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Date:	Sun, 23 Dec 2007 18:57:29 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	Carlos Corbacho <carlos@...angeworlds.co.uk>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg KH <gregkh@...e.de>, Thomas Gleixner <tglx@...utronix.de>,
	Len Brown <lenb@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: x86: Increase PCIBIOS_MIN_IO to 0x1500 to fix nForce 4
	suspend-to-RAM


* Rafael J. Wysocki <rjw@...k.pl> wrote:

> > 0x1500 has been picked here as a nice, round and more conservative 
> > value than 0x4000, and which covers 0x142E.
> 
> The patch is fine by me, so if anyone has objections, please speak up.

i'm quite nervous about that approach, partly due to the "black magic" 
interaction of commit 2ba84684e8c. Could we try to figure out what's 
really going on here, instead of playing with a general limit (which 
might break other boxes)?

	Ingo
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