linux-kernel - Re: BUG: sleeping function called from invalid context at kernel/mutex.c

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Date:	Tue, 05 Apr 2011 09:41:16 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Xiaotian Feng <dfeng@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Venkatesh Pallipadi <venki@...gle.com>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>, "Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: BUG: sleeping function called from invalid context at
 kernel/mutex.c

On Sat, 2011-04-02 at 21:12 +0200, Thomas Gleixner wrote:
> 
> And it is safe enough for the resume case as well, it simply cannot go
> to sleep because nothing else can hold that mutex in the early resume
> code. We take the mutex during early boot as well, but there the might
> sleep checks are disabled. And we should do the very same thing in the
> early resume code as well. Rafael, PeterZ ??? 

the $subject text sound like it triggered might_sleep(), and that had a
system_state != SYSTEM_RUNNING bail condition, but then, I've no clue
what resume looks like.
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