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x86, documentation: nmi_watchdog=2 works on x86_64

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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>
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Marcin Slusarz 2008-03-23 21:06:30 +01:00 committed by Ingo Molnar
parent 25e59881f1
commit 5abbcf2992
1 changed files with 1 additions and 2 deletions
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Documentation/nmi_watchdog.txt
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@ -23,8 +23,7 @@ kernel debugging options, such as Kernel Stack Meter or Kernel Tracer,
may implicitly disable the NMI watchdog.]
For x86-64, the needed APIC is always compiled in, and the NMI watchdog is
always enabled with I/O-APIC mode (nmi_watchdog=1). Currently, local APIC
mode (nmi_watchdog=2) does not work on x86-64.
always enabled with I/O-APIC mode (nmi_watchdog=1).
Using local APIC (nmi_watchdog=2) needs the first performance register, so
you can't use it for other purposes (such as high precision performance