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Message-ID: <alpine.LFD.1.10.0808301539391.3290@nehalem.linux-foundation.org>
Date: Sat, 30 Aug 2008 15:41:13 -0700 (PDT)
From: Linus Torvalds <torvalds@...ux-foundation.org>
To: Yinghai Lu <yhlu.kernel@...il.com>
cc: "Rafael J. Wysocki" <rjw@...k.pl>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
Jeff Garzik <jeff@...zik.org>, Tejun Heo <htejun@...il.com>,
Ingo Molnar <mingo@...e.hu>,
David Witbrodt <dawitbro@...global.net>,
Andrew Morton <akpm@...ux-foundation.org>,
Kernel Testers <kernel-testers@...r.kernel.org>
Subject: Re: Linux 2.6.27-rc5: System boot regression caused by commit
a2bd7274b47124d2fc4dfdb8c0591f545ba749dd
On Sat, 30 Aug 2008, Yinghai Lu wrote:
>
> in old kernel, after BAR3 request_filed, pci_assigned_unassigned
> should get update resource for that... but it could find that big
> space for it.
Exactly. So what happens is that it doesn't actually re-allocate it at
all. Not that it is necessarily even possible - it's quite possible that
that field is effectively locked some way and is read-only. Without
knowing the chipset details, we can only guess.
Linus
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