NMI Watchdog Could Get Linux Kernel Panic (Doc ID 463300.1)

Last updated on OCTOBER 12, 2014

Applies to:

Linux OS - Version 2.6.9 to 2.6.9
Red Hat Enterprise Linux Advanced Server x86-64 (AMD Opteron Architecture)
Linux x86-64
Linux Kernel - Version: 2.6.9 to 2.6.9

*** Checked for relevance on 2013-05-09 ***
*** Checked for relevance on 2011-08-25 ***
*** Checked for relevance on 2014-11-13 ***

Symptoms

Linux crashes with message on the console

kernel panic - not syncing:  nmi watchdog



You should also be able to see output on console or netdump log like the following:

NMI Watchdog detected LOCKUP, CPU=6, registers:
CPU 6
<...>

Cause

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