linux-kernel - [PATCH v2 0/2] ia64: prevent irq migration race in __cpu

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Message-ID: <20090209181338.GD19064@ldl.fc.hp.com>
Date:	Mon, 9 Feb 2009 11:13:38 -0700
From:	Alex Chiang <achiang@...com>
To:	tony.luck@...el.com
Cc:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, stable@...nel.org,
	linux-ia64@...r.kernel.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 0/2] ia64: prevent irq migration race in __cpu_disable
	path

This is v2 of my attempt to prevent an oops while offlining CPUs.

The change is that the patch becomes a full revert of Paul's
original patch, along with a long changelog that explains the
situation as best as I can determine. It's not 100% satisfactory
to me right now, but the testing we've done supports the patch.

The 2nd patch in the series is mostly cosmetic, and removes a
redundant call to cpu_clear() that we no longer need().

Tony, if you agree with the rationale in 1/2, then this series is
a candidate for .29.

stable team, if Tony pushes upstream for .29, then this series
should be applied to the .27 and .28 stable series.

Thanks.

/ac

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