Re: [GIT PULL] x86/kaslr for v3.14

From: H. Peter Anvin
Date: Fri Feb 07 2014 - 14:07:23 EST


On 02/07/2014 06:49 AM, Vivek Goyal wrote:
>
> As a workaround, Dave is currently using "nokaslr" command line parameter
> for second kernel. He is still facing issues where makedumpfile segment
> faults. He is looking into it further.
>

Now, let's state this: kaslr for kdump is almost certainly useless (the
amount of reserved memory is not enough to provide any meaningful
randomization, so any randomization needs to happen during the memory
reservation phase.) So disabling kaslr in the kdump kernel is entirely
appropriate.

-hpa


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