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

From: Ingo Molnar
Date: Mon Jul 21 2008 - 11:05:24 EST

* Ingo Molnar <mingo@xxxxxxx> wrote:

> > Pid: 1, comm: swapper Not tainted 2.6.26-tip-00013-g6de15c6-dirty #21290
> some more information: find below the same crash with vanilla
> linus/master and no extra patches. The crash site is:

a 32-bit testbox just triggered the same crash too:

calling init_mac80211_hwsim+0x0/0x310
mac80211_hwsim: Initializing radio 0
phy0: Failed to select rate control algorithm
phy0: Failed to initialize rate control algorithm
mac80211_hwsim: ieee80211_register_hw failed (-2)
BUG: unable to handle kernel NULL pointer dereference at 00000298
IP: [<c06efb98>] rollback_registered+0x28/0x120
*pdpt = 0000000000bc9001 *pde = 0000000000000000
Oops: 0000 [#1] PREEMPT SMP

and that system has no wireless so i guess it's just some unregister
inbalance kind of init/deinit buglet.

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