From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: Gavin Shan <gshan@alcatel-lucent.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Tough Issue: kernel instruction corruption
Date: Mon, 07 Jul 2008 17:48:11 +0200 [thread overview]
Message-ID: <48723ABB.4060009@s5r6.in-berlin.de> (raw)
In-Reply-To: <008101c8deaa$52cf19d0$01fca8c0@microsof60b8d6>
Gavin Shan wrote:
> I'm suspecting
> the kernel instructions were corrupted by DMA operations driving
> by those PCI devices with DMA capabality.
>
> Anybody have tried to protect kernel instructions from this case
> or have any ideas to protect kernel text section?
IOMMU hardware can give some protection. Correctly working PCI devices
and _correct drivers_ would be good to have too.
--
Stefan Richter
-=====-==--- -=== --===
http://arcgraph.de/sr/
prev parent reply other threads:[~2008-07-07 15:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-05 14:20 Gavin Shan
2008-07-05 15:17 ` Arjan van de Ven
2008-07-05 15:26 ` Gavin Shan
2008-07-07 15:48 ` Stefan Richter [this message]
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