Re: [crash] BUG: unable to handle kernel NULL pointer dereferenceat 0000000000000370

[Larry Finger]

David Miller wrote:
> From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
> Date: Tue, 22 Jul 2008 01:34:28 -0500
>
> > David Miller wrote:
> > > From: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
> > > Date: Mon, 21 Jul 2008 17:40:10 -0500
> > >
> > > > Sorry :(
> > > >
> > > > I used the davem patch, the second version of your first one, and your second 
> > > > one. Both problems persist.
> > > >
> > > > Still plugging away on bisection.
> > > GIT bisecting the lockdep problem is surely going the land you on:
> > >
> > > commit e308a5d806c852f56590ffdd3834d0df0cbed8d7
> > No. It landed on this one.
>
> For the lockdep warnings?

When I was just one commit later, I got both the lockdep warning and the BUG. 
This is the commit in question.

commit 16361127ebed0fb8f9d7cc94c6e137eaf710f676
Author: David S. Miller <davem@xxxxxxxxxxxxx>
Date:   Wed Jul 16 02:23:17 2008 -0700

    pkt_sched: dev_init_scheduler() does not need to lock qdisc tree.

    We are registering the device, there is no way anyone can get
    at this object's qdiscs yet in any meaningful way.

    Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>

Larry
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