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Date: Sun, 5 Jul 2009 11:03:40 +0100
Message-ID: <6278d2220907050303y5442cb05h6098a9c7a6beeb6e@mail.gmail.com>
Subject: Re: [2.6.30-rc1] lockdep false positive in DMA debug API...
From: Daniel J Blueman <daniel.blueman@gmail.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>
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On Mon, Jun 29, 2009 at 2:14 PM, Joerg Roedel<joerg.roedel@amd.com> wrote:
> On Sun, Jun 28, 2009 at 12:05:17PM +0100, Daniel J Blueman wrote:
>> With 2.6.30-rc1, I'm seeing the lockdep validator spinning it's wheels
>> [1] (also already seen [2]) on the DMA debug interface, with the
>> hashed locks.
>
> If you don't actually mean 2.6.3_1_-rc1 this is a known bug which was
> fixed for 2.6.30-final.

It's in 2.6.30 proper, but is now fixed in 2.6.31-rc and 2.6.30.1 by
"dma-debug: Put all hash-chain locks into the same lock class":
http://groups.google.com/group/linux.kernel/browse_thread/thread/73ae3a0fc04185c8#

Thanks anyway!
  Daniel
-- 
Daniel J Blueman
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