Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269471AbUJSPwW (ORCPT ); Tue, 19 Oct 2004 11:52:22 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269472AbUJSPwW (ORCPT ); Tue, 19 Oct 2004 11:52:22 -0400 Received: from 213-239-205-147.clients.your-server.de ([213.239.205.147]:3746 "EHLO debian.tglx.de") by vger.kernel.org with ESMTP id S269471AbUJSPwU (ORCPT ); Tue, 19 Oct 2004 11:52:20 -0400 Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U6 From: Thomas Gleixner Reply-To: tglx@linutronix.de To: Rui Nuno Capela Cc: Ingo Molnar , LKML , Lee Revell , mark_h_johnson@raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Florian Schmidt , Michal Schmidt , Fernando Pablo Lopez-Lezcano In-Reply-To: <28172.195.245.190.93.1098199429.squirrel@195.245.190.93> References: <20041012123318.GA2102@elte.hu> <20041012195424.GA3961@elte.hu> <20041013061518.GA1083@elte.hu> <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> <20041019144642.GA6512@elte.hu> <28172.195.245.190.93.1098199429.squirrel@195.245.190.93> Content-Type: text/plain Organization: linutronix Message-Id: <1098200660.12223.923.camel@thomas> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.4.6 Date: Tue, 19 Oct 2004 17:44:20 +0200 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1302 Lines: 35 On Tue, 2004-10-19 at 17:23, Rui Nuno Capela wrote: > Ingo Molnar wrote: > > > >> i have released the -U6 Real-Time Preemption patch: > >> > >> http://redhat.com/~mingo/realtime-preempt/realtime-preempt-2.6.9-rc4-mm1-U6 > > > > I'm experiencing terrible kernel panics at a very early bootstrap stage > while testing the U5 and U6 latest patch(es) on my laptop (P4/UP) -- > (Ingo: this is about the very same trouble I've reported while pre-testing > U6). > > Sorry that I can't show any trace dumps; only a hard-screenshot (with > digital camera?) would be possible but rather incomplete. The serial > console hack is not an option--these "modern" laptops doesn't come with > serial ports anymore, and netconsole is a no-op at a so early point of the > boot process. Or so I believe. > > OK. After some incremental configurations, I've isolated that those > oops(es) only occurs if PREEMPT_TIMING and/or LATENCY_TRACE areset (Y). My > first suspect was that newest RWSEM_DEADLOCK_DETECT, but it wasn't the > case. Same here on al DELL P4/UP. tglx - 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/