Re: NMI problems with Dell SMP Xeons

From: Keith Owens
Date: Mon May 22 2006 - 22:22:54 EST

Keith Owens (on Tue, 23 May 2006 12:02:10 +1000) wrote:
>Andi Kleen (on Tue, 23 May 2006 03:55:48 +0200) wrote:
>>nd add special cases just to get an NMI send with different vector.
>>> I have never disagreed that all NMIs will end up on the NMI vector (2).
>>The problem was that KDB had an own handler for its debug vector,
>>although that was only ever called as NMI.
>You are confusing KDB_ENTER (instruction code 'int 0x81') with
>KDB_VECTOR (IPI). KDB_ENTER needs its own int handler which is not an
>NMI, KDB_VECTOR does not need (and does not have) its own handler, it
>is handled by the NMI vector.

Or you might be thinking of kdb-v0.6-2.2.13 and earlier, which did have
a spurious handler for KDB_VECTOR. But that was fixed in
kdb-v1.0-2.3.29, back in January 2000. You are not going to hold that
against me are you, especially since I was not maintaining KDB then?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at