From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Priebe - Profihost AG Subject: 3.0.23 WARNING: at net/ipv4/tcp_input.c:3375 tcp_ack+0x1d62/0x2030() Date: Mon, 19 Mar 2012 09:10:51 +0100 Message-ID: <4F66EA0B.1080705@profihost.ag> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Cc: Linux Netdev List To: stable@vger.kernel.org Return-path: Received: from mail.profihost.ag ([85.158.179.208]:58334 "EHLO mail.profihost.ag" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756179Ab2CSIRd (ORCPT ); Mon, 19 Mar 2012 04:17:33 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Hi list, today i've seen the following error / backtrace several times on a machine running vanilla stable 3.0.23. ------------[ cut here ]------------ WARNING: at net/ipv4/tcp_input.c:3375 tcp_ack+0x1d62/0x2030() Hardware name: empty Modules linked in: xt_tcpudp ipt_REJECT iptable_filter ip_tables x_tables k8temp ipv6 md_mod dm_snapshot dm_mod Pid: 0, comm: swapper Tainted: G W 2.6.40.23intel #1 Call Trace: [] ? tcp_ack+0x1d62/0x2030 [] warn_slowpath_common+0x6c/0xa0 [] ? tcp_ack+0x1d62/0x2030 [] ? bictcp_undo_cwnd+0x20/0x20 [] warn_slowpath_null+0x1d/0x20 [] tcp_ack+0x1d62/0x2030 [] ? tcp_validate_incoming+0x269/0x330 [] tcp_rcv_established+0x2a6/0x5a0 [] tcp_v4_do_rcv+0xf1/0x250 [] tcp_v4_rcv+0x64a/0x7b0 [] ? iptable_filter_hook+0x3b/0x74 [iptable_filter] [] ip_local_deliver_finish+0xef/0x260 [] ip_local_deliver+0x8f/0xa0 [] ? ip_call_ra_chain+0x110/0x110 [] ip_rcv_finish+0x143/0x350 [] ip_rcv+0x29d/0x320 [] ? tcp4_gro_receive+0x4e/0xd0 [] __netif_receive_skb+0x37c/0x3f0 [] netif_receive_skb+0x47/0x70 [] napi_skb_finish+0x3f/0x50 [] napi_gro_receive+0x111/0x140 [] e1000_receive_skb+0x47/0x60 [] e1000_clean_rx_irq+0x1f6/0x370 [] e1000_clean+0x63/0x2b0 [] net_rx_action+0xdd/0x230 [] __do_softirq+0xa9/0x180 [] ? irq_enter+0x60/0x60 [] ? irq_enter+0x60/0x60 [] ? irq_exit+0x6d/0x90 [] ? do_IRQ+0x45/0xb0 [] ? irq_exit+0x6d/0x90 [] ? smp_apic_timer_interrupt+0x59/0x90 [] ? common_interrupt+0x30/0x38 [] ? mwait_idle+0xee/0x100 [] ? cpu_idle+0x96/0xb0 [] ? rest_init+0x58/0x70 [] ? start_kernel+0x344/0x3a7 [] ? kernel_init+0x13e/0x13e [] ? i386_start_kernel+0x79/0xb5 ---[ end trace b310ee8f88560c3c ]--- Stefan