linux-kernel - Re: [patch] x86_64, irq: check remote IRR bit before migrating level triggered irq

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Message-ID: <20070518191813.GC28957@linux-os.sc.intel.com>
Date:	Fri, 18 May 2007 12:18:13 -0700
From:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	Yinghai Lu <yhlu.kernel@...il.com>, mingo@...e.hu, ak@...e.de,
	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	"Zou, Nanhai" <nanhai.zou@...el.com>,
	"Mallick, Asit K" <asit.k.mallick@...el.com>,
	"Packard, Keith" <keith.packard@...el.com>
Subject: Re: [patch] x86_64, irq: check remote IRR bit before migrating level triggered irq

On Fri, May 18, 2007 at 12:02:16PM -0700, Eric W. Biederman wrote:
> I will look closer but I do believe that from the ioapic to the cpu the 2.6.21
> code should be fairly robust with respect to inflight messages from the ioapic
> to the local apics and the cpus.  What I failed to consider were inflight
> messages in the other direction arriving out of order.

Yes. Inflight messages from cpu to ioapic was what I was referring to.

thanks,
suresh
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