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Date:	Sun, 13 Jul 2008 11:45:14 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: max_low_pfn_mapped fix #1


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> fix crash on Ingo's big box:
> calling  pci_iommu_init+0x0/0x17
> PCI-DMA: Disabling AGP.
> PCI-DMA: aperture base @ d0000000 size 65536 KB
> PCI-DMA: using GART IOMMU.
> PCI-DMA: Reserving 64MB of IOMMU area in the AGP aperture
> BUG: unable to handle kernel paging request at ffff88000003be88
> IP: [<ffffffff8026d377>] __alloc_pages_internal+0xc3/0x3f2

that indeed solved the crash - thanks Yinghai.

	Ingo
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