linux-kernel - Re: Question on lockdep and MAX_LOCK

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Date:	Tue, 05 Feb 2013 22:23:50 -0800
From:	Ben Greear <greearb@...delatech.com>
To:	Steven Rostedt <rostedt@...dmis.org>
CC:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: Question on lockdep and MAX_LOCK_DEPTH

On 02/05/2013 08:36 PM, Steven Rostedt wrote:
> On Tue, 2013-02-05 at 19:30 -0800, Ben Greear wrote:
>
>> It's huge, so here's a link:
>>
>> http://www.candelatech.com/~greearb/debug.tgz
>>
>
> The trace shows that __netif_receive_skb() is grabbing an
> rcu_read_lock() but never releasing it. But I don't see any possible way
> that can be true in the code.
>
> Can you apply the following patch and run the trace again. I'd like to
> see if the code is going in the path I expect it is.

I'll look at this in detail tomorrow.  I have a few patches in dev.c code, maybe
I merged something badly....

Thanks,
Ben

-- 
Ben Greear <greearb@...delatech.com>
Candela Technologies Inc  http://www.candelatech.com

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