Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1763864AbXF1SKo (ORCPT ); Thu, 28 Jun 2007 14:10:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1764864AbXF1SK3 (ORCPT ); Thu, 28 Jun 2007 14:10:29 -0400 Received: from mail.screens.ru ([213.234.233.54]:37885 "EHLO mail.screens.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1764777AbXF1SK2 (ORCPT ); Thu, 28 Jun 2007 14:10:28 -0400 Date: Thu, 28 Jun 2007 22:10:44 +0400 From: Oleg Nesterov To: Thomas Sattler Cc: Linux Kernel Mailing List , Alan Cox , Ingo Molnar Subject: Re: 2.6.22-rc6 spurious hangs Message-ID: <20070628181044.GA613@tv-sign.ru> References: <4683BF16.40905@gmx.de> <20070628144741.GA437@tv-sign.ru> <4683CC89.80406@gmx.de> <20070628150826.GA487@tv-sign.ru> <4683F145.2060705@gmx.de> <4683F48F.9010603@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4683F48F.9010603@gmx.de> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1413 Lines: 38 On 06/28, Thomas Sattler wrote: > > Here is the logfile. > Jun 28 18:26:03 pearl ERR!! events/0 flush hang: f573759c f573759c 5782 5782 0 1 > Jun 28 18:26:03 pearl CURR: 5557 5557 dvbd 0 129024 > Jun 28 18:26:03 pearl wq_barrier_func+0x0/0xd > Jun 28 18:26:03 pearl cache_reap+0x0/0xe3 > Jun 28 18:26:03 pearl ---- > Jun 28 18:26:03 pearl cinergyt2_query_rc+0x0/0x2e9 [cinergyT2] > ... > Jun 28 19:23:03 pearl ERR!! events/0 flush hang: f573759c f573759c 5782 5782 1 1 > Jun 28 19:23:03 pearl CURR: 5557 5557 dvbd 0 129138 > Jun 28 19:23:03 pearl wq_barrier_func+0x0/0xd > Jun 28 19:23:03 pearl cache_reap+0x0/0xe3 > Jun 28 19:23:03 pearl console_callback+0x0/0xca > Jun 28 19:23:03 pearl flush_to_ldisc+0x0/0xf7 > Jun 28 19:23:03 pearl rekey_seq_generator+0x0/0x4e > Jun 28 19:23:03 pearl ---- > Jun 28 19:23:03 pearl cinergyt2_query_rc+0x0/0x2e9 [cinergyT2] cinergyt2_query_rc() hangs. I'll try to look tomorrov, but I know nothing about drivers/media/dvb/. This log is strange, flush_work() should report every 30 seconds, but it looks like wait_for_completion_timeout(HZ * 30) returns a lot earlier. Could you also show the result of sysrq-T ? Thanks! Oleg. - 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/