From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: [regression] nf_iterate(), BUG: unable to handle kernel NULL pointer dereference Date: Thu, 24 Jul 2008 14:03:50 +0200 Message-ID: <48886FA6.6050908@trash.net> References: <20080724060448.GA10203@elte.hu> <20080724.022259.113079007.davem@davemloft.net> <20080724093411.GA12001@elte.hu> <20080724115625.GA23994@elte.hu> <20080724115957.GA25701@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: David Miller , 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 To: Ingo Molnar Return-path: In-Reply-To: <20080724115957.GA25701@elte.hu> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Ingo Molnar wrote: > * 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 Does reverting 31d8519c fix this?