From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arjan van de Ven Subject: Two TCP/IP warnings in 2.6.25-rc7-git1 Date: Mon, 31 Mar 2008 14:05:04 -0700 Message-ID: <47F15200.3060706@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: ilpo.jarvinen@helsinki.fi, David Miller To: NetDev Return-path: Received: from mga07.intel.com ([143.182.124.22]:15293 "EHLO azsmga101.ch.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755129AbYCaVRw (ORCPT ); Mon, 31 Mar 2008 17:17:52 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Hi, kerneloops.org still has 3 tcp/ip related warnings in the top 15 of oopses/warnings that users (mostly of Fedora 9 alpha/beta, but also LKML and netdev) see. All three have been seen as recent as 2.6.25-rc7-git1, but seem to date back to around 2.6.24-rc4 era. Number 1 is a WARN_ON in tcp_ack(), there are several backtraces at http://www.kerneloops.org/search.php?search=tcp_ack but the core comes down to the following: tcp_ack tcp_rcv_established tcp_v4_do_rcv tcp_v4_rcv ip_local_deliver_finish ip_local_deliver ip_rcv_finish ip_rcv netif_receive_skb tg3_poll or nv_napi_poll or the e1000 equivalent net_rx_action __do_softirq do_softirq irq_exit do_IRQ Number 2 is a WARN_ON in tcp_enter_frto(), backtraces at http://www.kerneloops.org/search.php?search=tcp_enter_frto the core backtrace comes down to tcp_enter_frto tcp_write_timer run_timer_softirq __do_softirq do_softirq Number 3 is a WARN_ON in tcp_mark_head+lost, backtraces at http://www.kerneloops.org/search.php?search=tcp_mark_head_lost the core backtrace comes down to tcp_mark_head_lost tcp_ack tcp_rcv_established tcp_v4_do_rcv tcp_v4_rcv ip_local_deliver_finish ip_local_deliver ip_rcv_finish ip_rcv netif_receive_skb tg3_poll or nv_napi_poll net_rx_action __do_softirq The URLs link to several mailinglist/bugzilla postings for these. Note that not all backtraces have such a thing; a lot of these backtraces are collected by an automated daemon and submitted directly from testers/users systems to the database.