Re: x86-32 PAE-enabled kernel fails to boot with 64GB of RAM

From: H. Peter Anvin
Date: Tue Dec 06 2011 - 13:15:03 EST


On 12/06/2011 02:26 AM, Michal Hocko wrote:
>
> Quoting from Documentation/vm/highmem.txt:
> "
> The general recommendation is that you don't use more than 8GiB on a
> 32-bit machine - although more might work for you and your workload,
> you're pretty much on your own - don't expect kernel developers to
> really care much if things come apart.
> "
>

Still, I suspect the failure to cap the memory space... it still
*should* at least limp along. But yes, at some point the wheels really
will just come off the bus.

Does specifying a kernel"mem=" option (thereby capping the memory
artificially) work?

-hpa

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