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| author | Yinghai Lu <yinghai@kernel.org> | 2011-03-02 23:14:58 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-03-04 14:20:19 (GMT) |
| commit | 3b28cf32cc32594710590685ee478f697ed4f328 (patch) | |
| tree | bd6e1e60481a2fe2520825fce80e265558d244f2 /arch/x86/include | |
| parent | 6670e9cdaf554290e26121aa72f0118f2fac52e5 (diff) | |
| download | linux-3b28cf32cc32594710590685ee478f697ed4f328.tar.xz | |
x86, numa: Fix numa_emulation code with memory-less node0
This crash happens on a system that does not have RAM on node0.
When numa_emulation is compiled in, and:
1. we boot the system without numa=fake...
2. or we boot the system with numa=fake=128 to make emulation fail
we will get:
[ 0.076025] ------------[ cut here ]------------
[ 0.080004] kernel BUG at arch/x86/mm/numa_64.c:788!
[ 0.080004] invalid opcode: 0000 [#1] SMP
[...]
need to use early_cpu_to_node() directly, because cpu_to_apicid
and apicid_to_node will return node0 that is not onlined.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: David Rientjes <rientjes@google.com>
LKML-Reference: <4D6ECF72.5010308@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include')
0 files changed, 0 insertions, 0 deletions