From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751706AbbLHFM5 (ORCPT ); Tue, 8 Dec 2015 00:12:57 -0500 Received: from outbound.smtp.vt.edu ([198.82.183.121]:52252 "EHLO omr1.cc.vt.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751145AbbLHFMz (ORCPT ); Tue, 8 Dec 2015 00:12:55 -0500 X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.6+dev To: Florian Westphal , "David S. Miller" Cc: netfilter-devel@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: next-20151207 - crash in IPv6 code From: Valdis Kletnieks Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1449551563_2410P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Date: Tue, 08 Dec 2015 00:12:43 -0500 Message-ID: <3884.1449551563@turing-police.cc.vt.edu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --==_Exmh_1449551563_2410P Content-Type: text/plain; charset=us-ascii Seen this in 2 boots out of two on next-20151207 when IPV6 networking was available. It was stable when no net was available. Also, next-20161127 is OK. Haven't bisected it yet - this ring any bells? [ 92.231022] BUG: unable to handle kernel NULL pointer dereference at (null) [ 92.231035] IP: [] nf_ct_frag6_gather+0x81b/0xba0 [ 92.231046] PGD 0 [ 92.231050] Oops: 0000 [#1] PREEMPT SMP [ 92.231166] Call Trace: [ 92.231170] [ 92.231196] [] ipv6_defrag+0x66/0x80 [ 92.231206] [] nf_iterate+0x62/0x80 [ 92.231216] [] nf_hook_slow+0xba/0x1b0 [ 92.231225] [] ? nf_hook_slow+0x5/0x1b0 [ 92.231235] [] ipv6_rcv+0x83d/0x8d0 [ 92.231242] [] ? ipv6_rcv+0x3e/0x8d0 [ 92.231251] [] ? ip6_input_finish+0x7e0/0x7e0 [ 92.231260] [] __netif_receive_skb_core+0x60a/0xd70 [ 92.231269] [] __netif_receive_skb+0x20/0x90 [ 92.231278] [] netif_receive_skb_internal+0x70/0x1f0 [ 92.231285] [] ? netif_receive_skb_internal+0x25/0x1f0 [ 92.231292] [] ? eth_type_trans+0x11b/0x200 [ 92.231300] [] netif_receive_skb+0x59/0x170 [ 92.231308] [] ieee80211_deliver_skb+0x120/0x180 [ 92.231315] [] ieee80211_rx_handlers+0x2762/0x29f0 [ 92.231324] [] ? skb_queue_tail+0x20/0x50 [ 92.231335] [] ? do_raw_spin_lock+0x148/0x1e0 [ 92.231342] [] ? trace_hardirqs_on_caller+0x16/0x1b0 [ 92.231358] [] ieee80211_prepare_and_rx_handle+0x24e/0xa80 [ 92.231365] [] ? ieee80211_rx_napi+0x23a/0xf00 [ 92.231373] [] ieee80211_rx_napi+0x537/0xf00 [ 92.231380] [] ? ieee80211_rx_napi+0x23a/0xf00 [ 92.231391] [] ieee80211_tasklet_handler+0xc5/0xd0 [ 92.231401] [] tasklet_action+0x1d5/0x220 [ 92.231409] [] __do_softirq+0xec/0x5a0 [ 92.231417] [] irq_exit+0xd4/0xe0 [ 92.231426] [] do_IRQ+0x6a/0x120 [ 92.231434] [] common_interrupt+0x89/0x89 [ 92.231440] [ 92.231450] [] ? cpuidle_enter_state+0x1ac/0x410 [ 92.231458] [] ? trace_hardirqs_on+0xd/0x10 [ 92.231466] [] ? cpuidle_enter_state+0x1b7/0x410 [ 92.231476] [] ? cpuidle_enter_state+0x1ac/0x410 [ 92.231485] [] cpuidle_enter+0x17/0x20 [ 92.231494] [] cpu_startup_entry+0x48d/0x520 [ 92.231503] [] start_secondary+0x154/0x170 [ 92.231510] Code: 8b fd ff ff 48 8b 13 48 89 10 49 8b 0e 49 39 ce 0f 84 80 01 00 00 48 8b 11 48 39 d3 0f 84 71 01 00 00 49 39 d6 0f 84 6b 01 00 00 <48 > 8b 0a 48 39 cb 0f 84 59 01 00 00 48 89 ca 49 39 d6 75 ec e9 [ 92.231685] RIP [] nf_ct_frag6_gather+0x81b/0xba0 [ 92.231698] RSP [ 92.231704] CR2: 0000000000000000 [ 92.231714] ---[ end trace 62089aaf8d90e56a ]--- [ 94.678192] Kernel panic - not syncing: Fatal exception in interrupt [ 94.678228] Kernel Offset: 0x33000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) --==_Exmh_1449551563_2410P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Exmh version 2.5 07/13/2001 iQIVAwUBVmZmywdmEQWDXROgAQLTHQ/+JRFUV0eR5KgphbsG2/YvP4Ym/v7iKCG8 5T/yOK82BsR22YooAvavpmSOgi+Nz45ta0r4bRrdT7vLRAcnZ22xxxc2gheIVBtM 9hAuJ7BhR2cyehfyBKoRbC3ghWRmCthChHRNn2lMMBK+0cdAV72JrzGQBnNVeKQZ GjRam6y+rYgrGhaRemWSeLCJmjItUCYlhxFHvF/PP2Zr+UNGamECFYK3NdQZHQdi vnZuSb+4SN0XAsZE0ECbcmw8dE+nE4MtcDNJyYHTLNwGewueQ+Es4wSAMm0Y6FKv tcf2BHNNmpbt9XaWiWDyBhFc6mge0tx6qWTR218kIw2AjYnamNbUpCFkJyl5Biwp PGfmJi9J/38dsK9G2z8GNlXfz/JikNWZemTwdbGc/phkrhVX87YlpUgFeSqJ/hDF Qqg3Fl6rw9J1LHsyO6aPdh+IP1/g32bAC+DSFr3VKkHB2Q6WlL4gZBNYQapVdfep 6LkeVeNV92AkHss9PWmESSHs0WvWfmlanbA60WvWfjgPdy5iY0M59Mn3+2zhRfXK EVkQCbGdEbdYHImgMhGNnLukr77piqCqawZjjc3NJZfZ58U/bEMLTDIphaCEzFRM bP3iIkPjrgdu3sQ9i+gUDjOzHBepwNgPWH1EWd/YdkUfkBI0AJ8sg85GF/Egiz4d URTxOiYV+es= =XiwE -----END PGP SIGNATURE----- --==_Exmh_1449551563_2410P--