[PATCH 3/3] Limit E820 map when a user-defined memory map is specified

Yinghai Lu yhlu.kernel at gmail.com
Sun Jun 22 16:11:38 EDT 2008

On Sun, Jun 22, 2008 at 12:56 PM, Bernhard Walle <bwalle at suse.de> wrote:
> * "Yinghai Lu" <yhlu.kernel at gmail.com> [2008-06-20 13:34]:
>> any problem that you encountered without this patch?
> Sorry, forgot to answer that question.
> Yes, if you use mem=3G and take a dump, kexec builds the ELF core
> headers for the full memory size, which means that the dump is as large
> as the physical memory of the machine is, which doesn't make sense.

can we use e820_update_range instead? so e820_setup_gap still can get
correct value?


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