From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755897AbZBKILP (ORCPT ); Wed, 11 Feb 2009 03:11:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753559AbZBKIK7 (ORCPT ); Wed, 11 Feb 2009 03:10:59 -0500 Received: from mail-bw0-f167.google.com ([209.85.218.167]:39952 "EHLO mail-bw0-f167.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752995AbZBKIK7 (ORCPT ); Wed, 11 Feb 2009 03:10:59 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type :content-transfer-encoding; b=vPtjky4xwCs2LAbLJxUSkrOk1xt8G2KJ1Xk8xImt+jWVLSXGGl+kVV/PNmj79nsIHm r82tT7SJjfhIPVozWutMR86dT15MWJooJX1L/PATkBG3HBNAXnopg0HkYCxmxosE8CKY C3Es4I3dLyW8kVlW7waZsajn6G0n6m5I5hRSY= MIME-Version: 1.0 Date: Wed, 11 Feb 2009 09:10:54 +0100 Message-ID: <76392ee90902110010m1818e56esa2da4e4e88e762d1@mail.gmail.com> Subject: [2.6.28.1] INFO: task cron:4841 blocked for more than 120 seconds From: Folkert van Heusden To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Since 2.6.26 my system (quadcore intel core 2 system) and definately also with 2.6.28.1 crashes after a few days of uptime. Well, crashes: it becomes unresponsive (can't log in with ssh and creating new imap sessions etc also fails) but still forwards network traffic. The netconsole gets filled with these messages: [42265.700129] INFO: task cron:4841 blocked for more than 120 seconds. [42265.700139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [42265.700142] cron D ffff88002802e700 0 4841 5367 [42265.700148] ffff880065101dd8 0000000000000082 ffff880065101e8c 0000000000000292 [42265.700159] ffff88009a990ab0 ffffffff80550340 ffff88009a990d28 0000000000000000 [42265.700168] 0000000000000296 ffff88012bc059c0 00000000000000d0 0000000000004111 [42265.700176] Call Trace: [42265.700184] [] schedule_timeout+0x1e/0xad [42265.700188] [] wait_for_common+0xc4/0x13d [42265.700194] [] default_wake_function+0x0/0xe [42265.700199] [] do_fork+0x21e/0x285 [42265.700202] [] system_call_fastpath+0x16/0x1b [42265.700206] [] ptregscall_common+0x67/0xb0 [42265.700331] INFO: task cron:4845 blocked for more than 120 seconds. [42265.700333] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [42265.700335] cron D ffff88002802e700 0 4845 5367 [42265.700340] ffff88008c407dd8 0000000000000082 ffff88008c407e8c 0000000000000292 [42265.700349] ffff88009e14a100 ffffffff80550340 ffff88009e14a378 0000000000000000 [42265.700357] ffffffff80465fb7 ffffffff802c073f 0000000800000001 ffff88009e14a100 [42265.700365] Call Trace: [42265.700368] [] _spin_lock+0x5/0x7 [42265.700373] [] dup_fd+0x216/0x2bf [42265.700378] [] schedule_timeout+0x1e/0xad [42265.700381] [] wait_for_common+0xc4/0x13d [42265.700384] [] default_wake_function+0x0/0xe [42265.700388] [] do_fork+0x21e/0x285 [42265.700391] [] system_call_fastpath+0x16/0x1b [42265.700395] [] ptregscall_common+0x67/0xb0 -- www.unixexpert.nl