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Subject: Re: Btrfs lockdep with 3.15 merge window v3.14-751-g683b6c6f82a6
From: Josh Boyer <jwboyer@fedoraproject.org>
To: dsterba@suse.cz, Chris Mason <clm@fb.com>, jbacik@fb.com,
        linux-btrfs <linux-btrfs@vger.kernel.org>,
        "Linux-Kernel@Vger. Kernel. Org" <linux-kernel@vger.kernel.org>
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On Wed, Apr 2, 2014 at 12:47 PM, David Sterba <dsterba@suse.cz> wrote:
> On Tue, Apr 01, 2014 at 06:23:11PM -0400, Josh Boyer wrote:
>> Below is a lockdep spew I have on a local VM running Linus' tree as of
>> this afternoon.  The specific git commit is v3.14-751-g683b6c6f82a6.
>
>> [  295.349016]        CPU0                    CPU1
>> [  295.349016]        ----                    ----
>> [  295.349016]   lock(&found->groups_sem);
>> [  295.349016]                                local_irq_disable();
>> [  295.349016]                                lock(&delayed_node->mutex);
>> [  295.349016]                                lock(&found->groups_sem);
>> [  295.349016]   <Interrupt>
>> [  295.349016]     lock(&delayed_node->mutex);
>
> Fixed by https://patchwork.kernel.org/patch/3894781/

Thanks for the pointer!  I'll grab that and give it a shot on my VM.

josh
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