Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755596AbXKWIWz (ORCPT ); Fri, 23 Nov 2007 03:22:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753284AbXKWIWo (ORCPT ); Fri, 23 Nov 2007 03:22:44 -0500 Received: from smtp2.linux-foundation.org ([207.189.120.14]:57958 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753252AbXKWIWm (ORCPT ); Fri, 23 Nov 2007 03:22:42 -0500 Date: Fri, 23 Nov 2007 00:21:57 -0800 From: Andrew Morton To: Simon Arlott Cc: Linux Kernel Mailing List , netdev@vger.kernel.org Subject: Re: 2.6.23 WARNING: at kernel/softirq.c:139 local_bh_enable() Message-Id: <20071123002157.cb27f4a1.akpm@linux-foundation.org> In-Reply-To: <4745DCD7.8070805@simon.arlott.org.uk> References: <4745DCD7.8070805@simon.arlott.org.uk> X-Mailer: Sylpheed 2.4.7 (GTK+ 2.12.1; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3588 Lines: 64 On Thu, 22 Nov 2007 19:47:35 +0000 Simon Arlott wrote: > WARN during log message being output to ttyS0 and netconsole: > > [2059664.615816] __iptables__: init4 IN=ppp0 OUT=ppp0 WARNING: at kernel/softirq.c:139 local_bh_enable() > [2059664.620535] [<80120364>] local_bh_enable+0x3c/0x97 > [2059664.620553] [<802e3356>] __nf_ct_ext_destroy+0x35/0x5b > [2059664.620569] [<802dfbeb>] destroy_conntrack+0x5e/0xf6 > [2059664.620577] [<802db821>] nf_conntrack_destroy+0x1f/0x3f > [2059664.620585] [<802c0c71>] __kfree_skb+0xb8/0xf6 > [2059664.620597] [<802d00f0>] zap_completion_queue+0x3e/0x64 > [2059664.620606] [<802d0583>] find_skb+0x14/0x6b > [2059664.620612] [<801167cc>] inc_nr_running+0x12/0x25 > [2059664.620622] [<802d0fd8>] netpoll_send_udp+0x2d/0x251 > [2059664.620630] [<80226135>] uart_console_write+0x2a/0x33 > [2059664.620645] [<80241319>] write_msg+0x32/0x41 > [2059664.620657] [<8011c205>] __call_console_drivers+0x61/0x6d > [2059664.620669] [<8011c3fc>] release_console_sem+0x164/0x1bf > [2059664.620679] [<8011c81f>] vprintk+0x27a/0x2ff > [2059664.620692] [<8013881e>] handle_IRQ_event+0x1a/0x3f > [2059664.620702] [<801203a5>] local_bh_enable+0x7d/0x97 > [2059664.620709] [<8031ae6a>] fn_hash_lookup+0xb0/0xcd > [2059664.620723] [<8011c8bf>] printk+0x1b/0x1f > [2059664.620731] [<8032b372>] ipt_log_packet+0x71/0x15e > [2059664.620747] [<8032b4a0>] ipt_log_target+0x41/0x4a > [2059664.620757] [<802ea446>] ipt_limit_match+0x58/0x76 > [2059664.620766] [<8032b45f>] ipt_log_target+0x0/0x4a > [2059664.620774] [<803288c5>] ipt_do_table+0x3e2/0x479 > [2059664.620785] [<80331228>] xfrm_policy_put_afinfo+0xa/0x1e > [2059664.620800] [<80332219>] xfrm_lookup+0x15/0x69 > [2059664.620809] [<802db7d0>] nf_iterate+0x38/0x6a > [2059664.620822] [<802dbb60>] nf_hook_slow+0x57/0xe0 > [2059664.620830] [<802f1e7c>] ip_forward_finish+0x0/0x22 > [2059664.620841] [<802f20d1>] ip_forward+0x233/0x2ae > [2059664.620849] [<802f1e7c>] ip_forward_finish+0x0/0x22 > [2059664.620859] [<802f0e7a>] ip_rcv+0x46f/0x49c > [2059664.620866] [<802f04a8>] ip_rcv_finish+0x0/0x2ab > [2059664.620876] [<802f0a0b>] ip_rcv+0x0/0x49c > [2059664.620884] [<802c544a>] netif_receive_skb+0x326/0x3ae > [2059664.620894] [<802c6efe>] process_backlog+0x6d/0xd2 > [2059664.620903] [<802c766e>] net_rx_action+0x86/0x193 > [2059664.620911] [<80120001>] __do_softirq+0x40/0x85 > [2059664.620919] [<8012006d>] do_softirq+0x27/0x2b > [2059664.620925] [<8012023d>] irq_exit+0x2d/0x37 > [2059664.620931] [<801062d9>] do_IRQ+0x7a/0x8d > [2059664.620943] [<8010479b>] common_interrupt+0x23/0x28 > [2059664.620954] [<80209f85>] acpi_processor_idle+0x235/0x3a0 > [2059664.620967] [<80102344>] cpu_idle+0x43/0x6c > [2059664.620973] [<804aa99e>] start_kernel+0x210/0x215 > [2059664.620989] [<804aa317>] unknown_bootoption+0x0/0x195 > [2059664.620998] ======================= > [2059664.852188] SRC=66.249.93.147 DST=* LEN=40 TOS=0x00 PREC=0x00 TTL=53 ID=23868 DF PROTO=TCP SPT=80 DPT=55219 WINDOW=0 RES=0x00 RST URGP=0 If that trace is to be beieved we're doing nefilter stuff on packets which were sent across netconsole. This probably isn't anything the netfilter guys have thought about. And probably we don't want them to. Is there some simple way in which we can exempt netconsole from netfilter processing? - 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/