[PATCH] x86-64: Inhibit machine from asserting an NMI when doing Alt-SysRq-M operation.

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This patch touches the NMI watchdog every MAX_ORDER_NR_PAGES
to inhibit the machine from triggering an NMI while the CPUs
are locked. This situation is happening on boxes with more
than 64CPUs and 128GB of RAM when Alt-SysRq-m is performed.

It has been succesfully tested for regression on uni, 2, 4, 8
32, and 64 CPU boxes with various memory configuration.

Signed-off-by: Andi Kleen <ak@suse.de>

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Konrad Rzeszutek 2007-05-02 19:27:11 +02:00 • committed by Andi Kleen

parent c8118c6c07

commit ae32b1297a

1 changed files with 6 additions and 0 deletions

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arch/x86_64/mm/init.c

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