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| author | Amul Shah <amul.shah@unisys.com> | 2006-06-25 05:49:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:01:26 -0700 |
| commit | 00212fef814612245ed0261cbac8426d0c9a31a5 (patch) | |
| tree | a9316376451808f6a3bc8158abcc8906ce6d406f /arch | |
| parent | cc13ad6217018833e590a0e2ef5937aa16162d34 (diff) | |
| download | lwn-00212fef814612245ed0261cbac8426d0c9a31a5.tar.gz lwn-00212fef814612245ed0261cbac8426d0c9a31a5.zip | |
[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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index b8d5116d7371..fdb82658b1a1 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -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 |