Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755987AbYGXMBV (ORCPT ); Thu, 24 Jul 2008 08:01:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753336AbYGXMBJ (ORCPT ); Thu, 24 Jul 2008 08:01:09 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:47001 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752247AbYGXMBH (ORCPT ); Thu, 24 Jul 2008 08:01:07 -0400 Date: Thu, 24 Jul 2008 13:59:57 +0200 From: Ingo Molnar To: David Miller Cc: herbert@gondor.apana.org.au, w@1wt.eu, davidn@davidnewall.com, torvalds@linux-foundation.org, akpm@linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stefanr@s5r6.in-berlin.de, rjw@sisk.pl, ilpo.jarvinen@helsinki.fi, Dave Jones Subject: Re: [regression] nf_iterate(), BUG: unable to handle kernel NULL pointer dereference Message-ID: <20080724115957.GA25701@elte.hu> References: <20080724060448.GA10203@elte.hu> <20080724.022259.113079007.davem@davemloft.net> <20080724093411.GA12001@elte.hu> <20080724115625.GA23994@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20080724115625.GA23994@elte.hu> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2866 Lines: 63 * Ingo Molnar wrote: > here's a new type of crash a -tip testbox triggered today: > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 > IP: [<0000000000000000>] 0x0 > PGD 0 > Oops: 0010 [1] PREEMPT > CPU 0 > Pid: 5331, comm: ssh Not tainted 2.6.26 #21613 > RIP: 0010:[<0000000000000000>] [<0000000000000000>] 0x0 > RSP: 0018:ffff88003b959a70 EFLAGS: 00010217 > RAX: ffff88003b9ba91c RBX: ffff88003b9baac0 RCX: 0000000000000002 > RDX: ffff88003b9baac0 RSI: 0000000000000014 RDI: ffff88003b9ba3d8 > RBP: ffff88003b959a98 R08: ffff88003e434130 R09: ffff88003b9598b8 > R10: 0000000000002000 R11: 00000000d85507ac R12: ffff88003b9ba3d8 > R13: 0000000000000002 R14: ffff88003e06a020 R15: 0000000000000000 > FS: 00007fb2b7806780(0000) GS:ffffffff80c1c180(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 000000003b9e8000 CR4: 00000000000006a0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process ssh (pid: 5331, threadinfo ffff88003b958000, task ffff88003b99a000) > Stack: ffffffff80777f25 ffff88003b959a98 ffffffff80c24170 ffff88003b959b28 > 0000000000000004 ffff88003b959ae8 ffffffff80733107 ffff88003b959ab8 > ffff88003b9ba3d8 ffffffff80c1ed60 0000000000000004 ffff88003b9ba3d8 > Call Trace: > [] ? ipv4_confirm+0x8d/0x122 > [] nf_iterate+0x43/0xa5 > [] ? ip_finish_output+0x0/0x62 > [] nf_hook_slow+0x64/0xcb > [] ? ip_finish_output+0x0/0x62 > [] nf_hook_thresh+0x1e/0x20 > [] ip_output+0xb3/0xc9 > [] dst_output+0xb/0xd > [] ip_local_out+0x1e/0x22 > [] ip_queue_xmit+0x2a6/0x321 > [] ? sub_preempt_count+0x2d/0x40 > [] ? slob_alloc+0x11b/0x248 > [] tcp_transmit_skb+0x5ec/0x61b > [] ? kmalloc+0xc/0xe > [] tcp_connect+0x2a4/0x344 > [] tcp_v4_connect+0x3cd/0x425 > [] inet_stream_connect+0x9a/0x24d > [] ? fget_light+0x38/0x85 > [] sys_connect+0x68/0x8b > [] ? up_read+0x9/0xb > [] ? do_page_fault+0x55f/0x92f > [] system_call_fastpath+0x16/0x1b here's the full bootlog: http://redhat.com/~mingo/misc/crash-Thu_Jul_24_13_23_34_CEST_2008.log kernel is latest -git, v2.6.26-6371-g338b9bb. Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/