From: Andi Kleen <ak@suse.de>
To: Keith Owens <kaos@sgi.com>
Cc: linux-arch@vger.kernel.org
Subject: Re: [patch 2.6.17] Avoid broadcasting NMI IPIs
Date: Sat, 24 Jun 2006 10:36:53 +0200 [thread overview]
Message-ID: <200606241036.53597.ak@suse.de> (raw)
In-Reply-To: <23861.1151136920@ocs3.ocs.com.au>
On Saturday 24 June 2006 10:15, Keith Owens wrote:
> Andi Kleen (on Fri, 23 Jun 2006 14:32:56 +0200) wrote:
> >On Friday 23 June 2006 06:32, Keith Owens wrote:
> >> On some i386/x86_64 systems, sending an NMI IPI as a broadcast will
> >> reset the system. This seems to be a BIOS bug which affects machines
> >> where one or more cpus are not under OS control. It occurs on HT
> >> systems with a version of the OS that is not compiled without HT
> >> support. It also occurs when a system is booted with max_cpus=n where
> >> 2 <= n < cpus known to the BIOS. The fix is to always send NMI IPI as
> >> a mask instead of as a broadcast.
> >
> >Merged thanks.
> >
> >P.S.: Linux-arch isn't really the right list to cc x86 patches too.
> >I'm sure the other arch maintainers couldn't care less about such x86isms.
>
> These two patches were for both i386 and x86_64, not just for x86_64.
It's still not the right list for that. linux-arch is just to broadcast stuff
interesting to all architecture maintainers, not some kind of x86 list.
BTW they didn't compile without fixes on x86-64-UP nor
i386-SMP. Please compile test patches better next time.
-Andi
prev parent reply other threads:[~2006-06-24 8:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-23 4:32 [patch 2.6.17] Avoid broadcasting NMI IPIs Keith Owens
2006-06-23 12:32 ` Andi Kleen
2006-06-24 8:15 ` Keith Owens
2006-06-24 8:36 ` Andi Kleen [this message]
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