From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [crash] BUG: unable to handle kernel NULL pointer dereference at 0000000000000370 Date: Mon, 21 Jul 2008 17:04:48 +0200 Message-ID: <20080721150446.GA17746@elte.hu> References: <20080720.104411.81744468.davem@davemloft.net> <20080721133059.GA30637@elte.hu> <20080721134506.GA27598@elte.hu> <20080721143023.GA32451@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: torvalds@linux-foundation.org, akpm@linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: David Miller Return-path: Content-Disposition: inline In-Reply-To: <20080721143023.GA32451@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org * Ingo Molnar 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: [] 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. Ingo