x86, documentation: nmi_watchdog=2 works on x86_64

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

authored by

Marcin Slusarz and committed by

Ingo Molnar 18 years ago 5abbcf29 25e59881

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1 changed file

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Documentation

nmi_watchdog.txt

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Documentation/nmi_watchdog.txt

··· 23 23 may implicitly disable the NMI watchdog.] 24 24 25 25 For x86-64, the needed APIC is always compiled in, and the NMI watchdog is 26 - always enabled with I/O-APIC mode (nmi_watchdog=1). Currently, local APIC 27 - mode (nmi_watchdog=2) does not work on x86-64. 26 + always enabled with I/O-APIC mode (nmi_watchdog=1). 28 27 29 28 Using local APIC (nmi_watchdog=2) needs the first performance register, so 30 29 you can't use it for other purposes (such as high precision performance