Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1761360AbXEZPk0 (ORCPT ); Sat, 26 May 2007 11:40:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751761AbXEZPkQ (ORCPT ); Sat, 26 May 2007 11:40:16 -0400 Received: from keetweej.vanheusden.com ([213.84.46.114]:45213 "EHLO keetweej.vanheusden.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751434AbXEZPkO (ORCPT ); Sat, 26 May 2007 11:40:14 -0400 Date: Sat, 26 May 2007 17:40:12 +0200 From: Folkert van Heusden To: linux-kernel@vger.kernel.org Subject: [2.6.21.1] soft lockup when removing netconsole module Message-ID: <20070526154011.GB3735@vanheusden.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Organization: www.unixexpert.nl X-Chameleon-Return-To: folkert@vanheusden.com X-Xfmail-Return-To: folkert@vanheusden.com X-Phonenumber: +31-6-41278122 X-URL: http://www.vanheusden.com/ X-PGP-KeyID: 1F28D8AE X-GPG-fingerprint: AC89 09CE 41F2 00B4 FCF2 B174 3019 0E8C 1F28 D8AE X-Key: http://pgp.surfnet.nl:11371/pks/lookup?op=get&search=0x1F28D8AE Reply-By: Fri May 25 13:51:59 CEST 2007 X-Message-Flag: MultiTail - tail on steroids User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2034 Lines: 44 Hi, When trying to remove the netconsole module, I got the following kernel output after a while (couple of minutes iirc): [525720.117293] BUG: soft lockup detected on CPU#1! [525720.117353] [] show_trace_log_lvl+0x1a/0x30 [525720.117439] [] show_trace+0x12/0x14 [525720.117526] [] dump_stack+0x16/0x18 [525720.117613] [] softlockup_tick+0xa6/0xc2 [525720.117694] [] run_local_timers+0x12/0x14 [525720.117738] [] update_process_times+0x72/0xa1 [525720.117744] [] tick_sched_timer+0x53/0xb6 [525720.117748] [] hrtimer_interrupt+0x189/0x1e3 [525720.117753] [] local_apic_timer_interrupt+0x55/0x5b [525720.117761] [] smp_apic_timer_interrupt+0x2a/0x39 [525720.117766] [] apic_timer_interrupt+0x33/0x38 [525720.117770] [] mutex_lock+0x8/0xa [525720.117775] [] flush_workqueue+0x2f/0x8f [525720.117780] [] cancel_rearming_delayed_workqueue+0x29/0x2b [525720.117785] [] cancel_rearming_delayed_work+0xf/0x11 [525720.117790] [] netpoll_cleanup+0x75/0xa5 [525720.117794] [] cleanup_netconsole+0x17/0x1a [netconsole] [525720.117804] [] sys_delete_module+0x12f/0x14f [525720.117809] [] syscall_call+0x7/0xb [525720.117812] ======================= Also the rmmod hangs and would not exit even with kill -9. It also sucks up 100% cpu. Folkert van Heusden -- MultiTail es una herramienta flexibele para consiguir archivos de log, y para ejecutar ordenes. Filtrar, a?adir colores, merger y vista de las differencias. http://www.vanheusden.com/multitail/ ---------------------------------------------------------------------- Phone: +31-6-41278122, PGP-key: 1F28D8AE, www.vanheusden.com - 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/