Re: Tough Issue: kernel instruction corruption

[Stefan Richter]

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/
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