From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hugh Dickins <hugh.dickins-IWqWACnzNjwqdlJmJB21zg@public.gmane.org>
Subject: Re: [Bug #15202] lockdep warning during elevator_switch
Date: Mon, 22 Mar 2010 03:24:46 +0000 (GMT)
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To: "Rafael J. Wysocki" <rjw-KKrjLPT3xs0@public.gmane.org>
Cc: Linux Kernel Mailing List <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Kernel Testers List <kernel-testers-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Maciej Rutecki <maciej.rutecki-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

On Sun, 21 Mar 2010, Rafael J. Wysocki wrote:
> The following bug entry is on the current list of known regressions
> introduced between 2.6.32 and 2.6.33.  Please verify if it still should
> be listed and let the tracking team know (either way).
> 
> Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15202
> Subject		: lockdep warning during elevator_switch
> Submitter	: Hugh Dickins <hugh.dickins-IWqWACnzNjwqdlJmJB21zg@public.gmane.org>
> Date		: 2010-01-31 23:55 (50 days old)
> References	: http://marc.info/?l=linux-kernel&m=126498212613051&w=4

Yes, it is still a regression 2.6.33.1 (though fixed in 2.6.34-rc1:
my guess is that it will be left as a regression in 2.6.33-stable,
since it only happens when you have chosen CONFIG_PROVE_LOCKING=y).

Hugh