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[PATCH] Fix kdump Crash Kernel boot memory reservation for NUMA machines 

This patch will fix a boot memory reservation bug that trashes memory on
the ES7000 when loading the kdump crash kernel.

The code in arch/x86_64/kernel/setup.c to reserve boot memory for the crash
kernel uses the non-numa aware "reserve_bootmem" function instead of the
NUMA aware "reserve_bootmem_generic".  I checked to make sure that no other
function was using "reserve_bootmem" and found none, except the ones that
had NUMA ifdef'ed out.

I have tested this patch only on an ES7000 with NUMA on and off (numa=off)
in a single (non-NUMA) and multi-cell (NUMA) configurations.

Signed-off-by: Amul Shah <amul.shah@unisys.com>
Looks-good-to: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Amul Shah 2006-06-25 05:49:31 -07:00 committed by Linus Torvalds
parent cc13ad6217
commit 00212fef81
1 changed files with 1 additions and 1 deletions
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2
arch/x86_64/kernel/setup.c
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@ -823,7 +823,7 @@ void __init setup_arch(char **cmdline_p)
#endif
#ifdef CONFIG_KEXEC
if (crashk_res.start != crashk_res.end) {
reserve_bootmem(crashk_res.start,
reserve_bootmem_generic(crashk_res.start,
crashk_res.end - crashk_res.start + 1);
}
#endif