Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S270384AbUJUKbA (ORCPT ); Thu, 21 Oct 2004 06:31:00 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270687AbUJUK1u (ORCPT ); Thu, 21 Oct 2004 06:27:50 -0400 Received: from smtp4.netcabo.pt ([212.113.174.31]:58741 "EHLO exch01smtp12.hdi.tvcabo") by vger.kernel.org with ESMTP id S270640AbUJUK1a (ORCPT ); Thu, 21 Oct 2004 06:27:30 -0400 Message-ID: <14882.195.245.190.93.1098354393.squirrel@195.245.190.93> In-Reply-To: <20041021091850.GA29183@elte.hu> References: <20041014002433.GA19399@elte.hu> <20041014143131.GA20258@elte.hu> <20041014234202.GA26207@elte.hu> <20041015102633.GA20132@elte.hu> <20041016153344.GA16766@elte.hu> <20041018145008.GA25707@elte.hu> <20041019124605.GA28896@elte.hu> <20041019180059.GA23113@elte.hu> <20041020094508.GA29080@elte.hu> <30690.195.245.190.93.1098349976.squirrel@195.245.190.93> <20041021091850.GA29183@elte.hu> Date: Thu, 21 Oct 2004 11:26:33 +0100 (WEST) Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 From: "Rui Nuno Capela" To: "Ingo Molnar" Cc: linux-kernel@vger.kernel.org, "Lee Revell" , mark_h_johnson@raytheon.com, "K.R. Foley" , "Bill Huey" , "Adam Heath" , "Florian Schmidt" , "Thomas Gleixner" , "Michal Schmidt" , "Fernando Pablo Lopez-Lezcano" User-Agent: SquirrelMail/1.4.3a X-Mailer: SquirrelMail/1.4.3a MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT X-Priority: 3 (Normal) Importance: Normal X-OriginalArrivalTime: 21 Oct 2004 10:27:26.0610 (UTC) FILETIME=[8F854F20:01C4B758] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1436 Lines: 36 Ingo Molnar wrote: > > * Rui Nuno Capela wrote: > >> One of the signs that there's real trouble in here can be seen on >> the following complete dmesg output (which was even a miracle to be >> captured at all). This shows the complete bootstrap and init sequences >> and at the end one fatal crash while plugging an USB flash memory >> stick (usb-storage). This has been already reported earlier yesterday, >> but I just want to make it here, as the evidence-at-hand. >> >> After this precise occurence, the system becomes very flaky, >> unreliable and often ends up freezing to death. > > for the sake of testing could you disable CONFIG_USB and see whether the > instability is truly directly related to the USB crash, as you suspect? > Such a kernel crash can often destabilize other parts of the kernel. > Just tested with CONFIG_USB off, and can't test the usb-storage crash, of course. However, jackd is still freezing to death. No console, nor syslog output can be found. The system just dies sometime after some jack client is launched. Will try further. I'm on the way to test Thomas Gleixner's patch... BBL -- rncbc aka Rui Nuno Capela rncbc@rncbc.org - 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/