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x86, mm: Set memblock initial limit to 1M

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memblock_x86_fill() could double memory array.
If we set memblock.current_limit to 512M, so memory array could be around 512M.
So kdump will not get big range (like 512M) under 1024M.

Try to put it down under 1M, it would use about 4k or so, and that is limited.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/1353123563-3103-10-git-send-email-yinghai@kernel.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Yinghai Lu 2012-11-16 19:38:46 -08:00 committed by H. Peter Anvin
parent ab9519376e
commit dd7dfad7fb
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/setup.c
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@ -890,7 +890,7 @@ void __init setup_arch(char **cmdline_p)
cleanup_highmap();
memblock.current_limit = get_max_mapped();
memblock.current_limit = ISA_END_ADDRESS;
memblock_x86_fill();
/*