On 03/18/2013 02:25 PM, Yinghai Lu wrote:
> Current code does not set low range for crashkernel if the user
> does not specify that.
>
> That cause regressions on system that does not support intel_iommu
> properly.
>
> Chao said that his system does work well on 3.8 without extra parameter.
> even iommu does not work with kdump.
>
> Set crashkernel_low automatically if the user does not specify that.
>
> For system that does support IOMMU with kdump properly, user could
> specify crashkernel_low=0 to save that 72M low ram.
>
> -v3: add swiotlb_size() according to Konrad.
>
> Reported-by: WANG Chao <chaow...@redhat.com>
> Tested-by: WANG Chao <chaow...@redhat.com>
> Signed-off-by: Yinghai Lu <ying...@kernel.org>
Can we get a bit more of an explanation instead of "and etc 8M"? At
least a hint of what kind of objects would go in there...
-hpa
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