From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Andi Kleen <ak@suse.de>
Cc: torvalds@osdl.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] Readd BUG for SMP TLB IPI
Date: 09 Jul 2003 17:53:28 +0100 [thread overview]
Message-ID: <1057769607.6262.63.camel@dhcp22.swansea.linux.org.uk> (raw)
In-Reply-To: <20030709134109.65efa245.ak@suse.de>
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.
> I don't believe it. It would cause an immediate hang because the goto out
> does not ack the IPI. Surely such hangs would have been reported?
See - trawling bug data is *useful* 8)
For 2.4.x crashes relating to IPI replay bugs are reported very occasionally, for
2.5 I've no idea at all
next prev parent reply other threads:[~2003-07-09 16:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-09 10:49 Andi Kleen
2003-07-09 11:27 ` Alan Cox
2003-07-09 11:41 ` Andi Kleen
2003-07-09 16:53 ` Alan Cox [this message]
2003-07-09 16:58 ` Andi Kleen
2003-07-09 17:04 ` Alan Cox
2003-07-09 17:32 ` Andi Kleen
2003-07-09 23:38 ` Alan Cox
2003-07-09 17:37 ` Compile failure 2.4.22-pre3-ac1 Midian
2003-07-09 18:10 ` Steven Cole
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