Re: Question on lockdep and MAX_LOCK_DEPTH

[Steven Rostedt]

On Tue, 2013-02-05 at 22:23 -0800, Ben Greear wrote:
> 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....

I wish you told me that in the beginning. That you modified the core
code. In that case I would have asked to see your modifications before
anything else.

I'm 99% sure that the bug is in your modifications.

-- Steve


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