From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denys Fedoryschenko Subject: 2.6.31 / WARNING / tcp_input Date: Thu, 17 Sep 2009 20:33:38 +0300 Message-ID: <200909172033.38960.denys@visp.net.lb> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: netdev@vger.kernel.org Return-path: Received: from hosting.visp.net.lb ([194.146.153.11]:44576 "EHLO hosting.visp.net.lb" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754984AbZIQRbp (ORCPT ); Thu, 17 Sep 2009 13:31:45 -0400 Received: from adminos.visp.net.lb (unknown [195.69.208.252]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: denys@visp.net.lb) by hosting.visp.net.lb (Postfix) with ESMTPSA id 187192EC001 for ; Thu, 17 Sep 2009 20:31:40 +0300 (EEST) Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Nothing unusual in configs, heavily loaded HTTP proxy. Some tunings: sysctl -w net.core.somaxconn=4096 sysctl -w net.core.wmem_max=384000 kernel.panic_on_oops=1 kernel.panic=5 vm.min_free_kbytes=16384 net.ipv4.tcp_max_syn_backlog=10240 net.ipv4.conf.all.arp_filter=1 vm.panic_on_oom=2 net.core.netdev_max_backlog=4000 [ 123.221032] ------------[ cut here ]------------ [ 123.221183] WARNING: at net/ipv4/tcp_input.c:2920 tcp_ack+0xc6c/0x17bf() [ 123.221316] Hardware name: PowerEdge 2900 [ 123.221438] Modules linked in: ext4 jbd2 mptspi mptsas scsi_transport_spi scsi_transport_sas mptscsih mptbase xt_owner ipt_REDIRECT xt_tcpudp xt_dscp iptable_raw iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack rtc_cmos rtc_core rtc_lib nf_defrag_ipv4 iptable_filter ip_tables x_tables 8021q garp stp llc loop usb_storage mtdblock mtd_blkdevs mtd iTCO_wdt iTCO_vendor_support pata_acpi ata_piix ata_generic libata megaraid_sas bnx2 sr_mod cdrom tulip r8169 sky2 via_velocity via_rhine sis900 ne2k_pci 8390 skge tg3 libphy 8139too e1000 e100 usbhid ohci_hcd uhci_hcd ehci_hcd usbcore nls_base [ 123.225025] Pid: 0, comm: swapper Not tainted 2.6.31-build-0046-32bit #20 [ 123.225162] Call Trace: [ 123.225289] [] warn_slowpath_common+0x60/0x90 [ 123.225415] [] warn_slowpath_null+0xd/0x10 [ 123.225540] [] tcp_ack+0xc6c/0x17bf [ 123.225665] [] tcp_rcv_established+0x6dc/0x8fd [ 123.225791] [] tcp_v4_do_rcv+0x24/0x17e [ 123.225915] [] tcp_v4_rcv+0x3e7/0x5a8 [ 123.226039] [] ip_local_deliver_finish+0xb6/0x12e [ 123.226174] [] ip_local_deliver+0x61/0x6a [ 123.226303] [] ip_rcv_finish+0x29d/0x2b3 [ 123.226427] [] ip_rcv+0x22d/0x259 [ 123.226552] [] netif_receive_skb+0x439/0x458 [ 123.226677] [] ? eth_type_trans+0x25/0xa9 [ 123.226808] [] bnx2_poll_work+0xffd/0x1137 [bnx2] [ 123.226938] [] ? enqueue_task_fair+0x131/0x173 [ 123.227069] [] ? activate_task+0x3c/0x4b [ 123.227206] [] bnx2_poll+0xf8/0x1d8 [bnx2] [ 123.227331] [] net_rx_action+0x93/0x177 [ 123.227457] [] __do_softirq+0xa7/0x144 [ 123.227582] [] ? __do_softirq+0x0/0x144 [ 123.227705] [] ? irq_exit+0x29/0x5c [ 123.227876] [] ? do_IRQ+0x80/0x96 [ 123.228000] [] ? common_interrupt+0x29/0x30 [ 123.228136] [] ? mwait_idle+0x8a/0xb9 [ 123.228266] [] ? cpu_idle+0x44/0x60 [ 123.228390] [] ? start_secondary+0x195/0x19a [ 123.228515] ---[ end trace 22f267765b97f808 ]---