Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267353AbUJRU6i (ORCPT ); Mon, 18 Oct 2004 16:58:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267352AbUJRU6i (ORCPT ); Mon, 18 Oct 2004 16:58:38 -0400 Received: from brown.brainfood.com ([146.82.138.61]:44928 "EHLO gradall.private.brainfood.com") by vger.kernel.org with ESMTP id S267360AbUJRU63 (ORCPT ); Mon, 18 Oct 2004 16:58:29 -0400 Date: Mon, 18 Oct 2004 15:58:22 -0500 (CDT) From: Adam Heath X-X-Sender: adam@gradall.private.brainfood.com To: Ingo Molnar cc: linux-kernel@vger.kernel.org Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U5 In-Reply-To: <20041018181826.GC2899@elte.hu> Message-ID: 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> <20041018181826.GC2899@elte.hu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 902 Lines: 21 On Mon, 18 Oct 2004, Ingo Molnar wrote: > > However, after I reset the threshold to 50(and got a few small traces), I got > > this whopper. > > > > (XFree86/1129/CPU#0): new 4692 us maximum-latency critical section. > > => started at timestamp 358506933: > > => ended at timestamp 358511625: > > [] sub_preempt_count+0x60/0x90 > > interesting - this could be a printk (trace) done in a critical section > though. What does /proc/latency_trace tell, is it full of console code > functions? Too late, it's gone. It'd be nice if there was some way to have history on that file. - 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/