Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751297AbWELNi4 (ORCPT ); Fri, 12 May 2006 09:38:56 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751298AbWELNi4 (ORCPT ); Fri, 12 May 2006 09:38:56 -0400 Received: from 216-54-166-5.static.twtelecom.net ([216.54.166.5]:62882 "EHLO mx1.compro.net") by vger.kernel.org with ESMTP id S1751297AbWELNi4 (ORCPT ); Fri, 12 May 2006 09:38:56 -0400 Message-ID: <44648FEA.8040301@compro.net> Date: Fri, 12 May 2006 09:38:50 -0400 From: Mark Hounschell Reply-To: markh@compro.net Organization: Compro Computer Svcs. User-Agent: Thunderbird 1.5 (X11/20060111) MIME-Version: 1.0 To: Steven Rostedt Cc: Ingo Molnar , linux-kernel , Daniel Walker , Thomas Gleixner , johnstul@us.ibm.com Subject: Re: rt20 patch question References: <4460ADF8.4040301@compro.net> <4461E53B.7050905@compro.net> <446207D6.2030602@compro.net> <44623157.9090105@compro.net> <20060512081628.GA26736@elte.hu> <20060512092159.GC18145@elte.hu> <446481C8.4090506@compro.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1741 Lines: 54 Steven Rostedt wrote: > On Fri, 12 May 2006, Mark Hounschell wrote: > >> Ingo Molnar wrote: >>> Mark, does this fix the problem? >>> >>> Ingo >>> > [...] >> It looks like it does fix at least the BUG and network disconnection >> problem I am/was seeing. It's been 45 minutes or so without a glitch. >> >> I'm still not running this in complete preempt mode. Should I see if it >> helps that situation also? It only took a few minutes for that one to >> show up. >> > > > I was looking at the logdump, but I don't see anything spinning. CPU 1 > seems to be constantly running your v67 program (alternating with > posix_cpu_timer), and CPU: 0 is still switching with the swapper, along > with other tasks, so that this means nothing is just spinning and hogging > the CPU (on CPU 0, but I assume the v67 tasks is suppose to keep running). > > But, this could mean that something is blocked on a lock, or missed a > wakeup somewhere and we block X from responding. Although X is shown up, > but some signal to do an event my be prevented. > > I wonder if the fact that softirqs are running with preemption enabled, is > the problem here. > > Could you try the patch that Ingo sent here: > > http://marc.theaimsgroup.com/?l=linux-kernel&m=114741312301909&q=raw > > -- Steve > > If anything this made it worse. I actually got the freezes while just booting up the emulation. Once up, the same thing though. >Mark, > > as Ingo commented, this is a Hack! not a solution. Understood. Mark - 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/