linux-kernel - Re: 3.14.0+/x86: lockdep and mutexes not getting along

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Message-ID: <20140410114258.GM10526@twins.programming.kicks-ass.net>
Date:	Thu, 10 Apr 2014 13:42:58 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	"Kirill A. Shutemov" <kirill@...temov.name>
Cc:	Jason Low <jason.low2@...com>,
	"Michael L. Semon" <mlsemon35@...il.com>,
	Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: 3.14.0+/x86: lockdep and mutexes not getting along

On Thu, Apr 10, 2014 at 12:15:44PM +0300, Kirill A. Shutemov wrote:
> I'm not able to trigger the lockdep report with the patch applied so far.

So what I've found it that the lockdep reports are valid; the only
difference is a lockup after the report or not.

So linus.git will hang after a lockdep splat, whereas the patched kernel
will continue after giving the exact same lockdep splat.


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