• Andi Kleen's avatar
    [PATCH] i386: Enable NMI watchdog by default · 1de84979
    Andi Kleen authored
    I've had good experiences with having this on by default on x86-64.
    It turns nasty hangs into easier to debug oopses.
    
    Enable the local APIC wdog by default for systems newer than 2004.
    
    This comes from a strange compromise: according to arjan the reason
    it was off by default was some old IBM systems that corrupted
    registered when NMI happened in SMI. Can't remember more specific,
    but >= 2004 should avoid these. It's probably overly broad
    because most older systems should be ok (and the really old systems
    won't be supported by the local apic watchdog anyways)
    Signed-off-by: default avatarAndi Kleen <ak@suse.de>
    1de84979
nmi.c 22.6 KB