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

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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.

37437bb2e1ae8af470dfcd5b4ff454110894ccaf is first bad commit
commit 37437bb2e1ae8af470dfcd5b4ff454110894ccaf
Author: David S. Miller <davem@xxxxxxxxxxxxx>
Date:   Wed Jul 16 02:15:04 2008 -0700

    pkt_sched: Schedule qdiscs instead of netdev_queue.

    When we have shared qdiscs, packets come out of the qdiscs
    for multiple transmit queues.

    Therefore it doesn't make any sense to schedule the transmit
    queue when logically we cannot know ahead of time the TX
    queue of the SKB that the qdisc->dequeue() will give us.

    Just for sanity I added a BUG check to make sure we never
    get into a state where the noop_qdisc is scheduled.

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

:040000 040000 4d13d1fb1ae37d9720c3db6b1368866e78621f55 f1a0f5e5a191e7904b528d9e10069a4324a5d328 M include :040000 040000 3515aad52a2cdaaba85feeffc0944d7f07a19c96 4854d4f4df9726a2e8837037f82bde807bed2ede M net

Larry
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