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

From: Larry Finger
Date: Tue Jul 22 2008 - 09:02:27 EST

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>

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