netdev - Re: [setsockopt] WARNING: CPU: 0 PID: 1444 at kernel/sched/core.c:7088 __might

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Message-ID: <20140807172901.GH3588@twins.programming.kicks-ass.net>
Date:	Thu, 7 Aug 2014 19:29:01 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	chas williams - CONTRACTOR <chas@....nrl.navy.mil>
Cc:	Fengguang Wu <fengguang.wu@...el.com>, netdev@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org,
	linux-atm-general@...ts.sourceforge.net
Subject: Re: [setsockopt] WARNING: CPU: 0 PID: 1444 at
 kernel/sched/core.c:7088 __might_sleep+0x51/0x16f()

On Thu, Aug 07, 2014 at 07:25:14PM +0200, Peter Zijlstra wrote:
> > This isn't the only place that we queue a message for the signalling
> > daemon after a prepare_to_wait() uninterruptibly so this patch would
> > be incomplete as is.
> 
> I'm not sure I follow, this is the only place you do so while then going
> to sleep. All other sites don't sleep while they're enqueued on the
> waitqueue.

Argh, my brain is fried, you're quite right.  I'll go have another stab
at it tomorrow or so.

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