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x86: early memtest to find bad ram
authorYinghai Lu <yhlu.kernel.send@gmail.com>
Fri, 21 Mar 2008 06:58:33 +0000 (23:58 -0700)
committerIngo Molnar <mingo@elte.hu>
Thu, 17 Apr 2008 15:41:19 +0000 (17:41 +0200)
do simple memtest after init_memory_mapping

use find_e820_area_size to find all ram range that is not reserved.

and do some simple bits test to find some bad ram.

if find some bad ram, use reserve_early to exclude that range.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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