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Date: Thu, 27 Mar 2008 11:07:00 +0100
From: Jarek Poplawski <jarkao2@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: netdev@vger.kernel.org, bugme-daemon@bugzilla.kernel.org, marcus@better.se,
       Stephen Hemminger <shemminger@linux-foundation.org>,
       "Rafael J. Wysocki" <rjw@sisk.pl>, LKML <linux-kernel@vger.kernel.org>,
       Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [Bugme-new] [Bug 10326] New: inconsistent lock state in
	net_rx_action
Message-ID: <20080327100700.GA2845@ami.dom.local>
References: <bug-10326-10286@http.bugzilla.kernel.org/> <20080325134320.21525479.akpm@linux-foundation.org> <47EAD8A5.3070806@gmail.com> <20080326171403.ad186037.akpm@linux-foundation.org> <20080327085542.GA2778@ami.dom.local> <20080327021812.601776b8.akpm@linux-foundation.org>
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On Thu, Mar 27, 2008 at 02:18:12AM -0700, Andrew Morton wrote:
...
> Anyway, the accusation is that lockdep is busted, in that it doesn't realise that
> local_irq_disable() blocks softirqs.

Usually lockdep gets this right, so I've some doubts too. But here
it's not only about softirqs; this:

> >> Mar 25 19:48:46 better kernel:  #1:  (target_list_lock){--..}, at: [<c0399c0d>]

means lockdep saw hardirqs enabled while acquiring/holding this lock.

Jarek P.