Re: [PATCH] x86, kdump: Set crashkernel_low automatically

From: H. Peter Anvin
Date: Mon Mar 18 2013 - 15:13:27 EST

On 03/18/2013 08:33 AM, Vivek Goyal wrote:
> Thinking more about it, if ongoing DMA is an issue, then setting up
> software iotlb in those areas is also prone to being overwritten by
> those DMAs. Hence, reserving memory low where no DMA is setup by first
> kernel, seems somewhat safer.

Agreed. We really should reserve some memory low.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at