Date: Wed, 9 Jul 2003 18:58:23 +0200
From: Andi Kleen <ak@suse.de>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: torvalds@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Readd BUG for SMP TLB IPI
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On 09 Jul 2003 17:53:28 +0100
Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> On Mer, 2003-07-09 at 12:41, Andi Kleen wrote:
> > > We have recorded retransmitted IPI's on some boards (notably the
> > > infamous BP6). They do happen. Early 2.4 had a fix for handling the
> > > replay case too, but someone lost it and BP6 boards no longer work as
> > > reliably.
> > 
> > Ok, all non broken hardware.
> 
> It can happen to any PII/PIII box, its just very very rare on others, so
> rare I guess such crashes are in the noise.

How do you know it an happen on them? Do you have backtraces?

If the BUG was there they wouldn't be in the noise.  With the incomplete/broken
handling it's just a silent hang.

-Andi
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