From: Prakash Punnoor <prakash@punnoor.de>
To: Sebastian Biallas <sb@biallas.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: PCI-DMA: Disabling IOMMU
Date: Wed, 18 Oct 2006 17:41:03 +0200 [thread overview]
Message-ID: <200610181741.03428.prakash@punnoor.de> (raw)
In-Reply-To: <45364248.2020901@biallas.net>
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Am Mittwoch 18 Oktober 2006 17:03 schrieben Sie:
> Hi,
>
> Linux ouputs some strange "PCI-DMA: Disabling IOMMU" on booting. It's a
> ALiveNF4G motherboard with an Athlon64 X2 running vanilla Linux 2.6.18.1
> (which supports all hardware out of the box, pretty cool).
>
> Should I worry about this IOMMU-disabling? All other Linux/IOMMU stuff I
> found had AGP or BIOS messages nearby, but I only get this single
> "PCI-DMA: Disabling IOMMU" line, without any hint.
Unless you have >=4GB of RAM using IOMMU makes no sense, thus it gets
disabled.
--
(°= =°)
//\ Prakash Punnoor /\\
V_/ \_V
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next prev parent reply other threads:[~2006-10-18 15:40 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-18 15:03 PCI-DMA: Disabling IOMMU Sebastian Biallas
2006-10-18 15:41 ` Prakash Punnoor [this message]
2006-10-18 15:51 ` Sebastian Biallas
2006-10-18 21:16 ` Muli Ben-Yehuda
2006-10-18 21:15 ` Muli Ben-Yehuda
2006-10-18 21:15 ` Muli Ben-Yehuda
2006-10-18 21:48 ` Andi Kleen
2006-10-19 5:15 ` Muli Ben-Yehuda
2006-10-19 11:52 ` Andi Kleen
2006-10-19 12:08 ` Alan Cox
2006-10-19 13:04 ` Andi Kleen
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