Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261414AbUKALyr (ORCPT ); Mon, 1 Nov 2004 06:54:47 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261757AbUKALyr (ORCPT ); Mon, 1 Nov 2004 06:54:47 -0500 Received: from mx2.elte.hu ([157.181.151.9]:3502 "EHLO mx2.elte.hu") by vger.kernel.org with ESMTP id S261414AbUKALyp (ORCPT ); Mon, 1 Nov 2004 06:54:45 -0500 Date: Mon, 1 Nov 2004 12:55:46 +0100 From: Ingo Molnar To: Florian Schmidt Cc: Lee Revell , Paul Davis , Thomas Gleixner , LKML , mark_h_johnson@raytheon.com, Bill Huey , Adam Heath , Michal Schmidt , Fernando Pablo Lopez-Lezcano , Karsten Wiese , jackit-devel , Rui Nuno Capela Subject: Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4] Message-ID: <20041101115546.GA2620@elte.hu> References: <20041030231358.6f1eeeac@mango.fruits.de> <1099171567.1424.9.camel@krustophenia.net> <20041030233849.498fbb0f@mango.fruits.de> <20041031120721.GA19450@elte.hu> <20041031124828.GA22008@elte.hu> <1099227269.1459.45.camel@krustophenia.net> <20041031131318.GA23437@elte.hu> <20041031134016.GA24645@elte.hu> <20041031162059.1a3dd9eb@mango.fruits.de> <20041031165913.2d0ad21e@mango.fruits.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041031165913.2d0ad21e@mango.fruits.de> User-Agent: Mutt/1.4.1i X-ELTE-SpamVersion: MailScanner 4.31.6-itk1 (ELTE 1.2) SpamAssassin 2.63 ClamAV 0.73 X-ELTE-VirusStatus: clean X-ELTE-SpamCheck: no X-ELTE-SpamCheck-Details: score=-4.9, required 5.9, autolearn=not spam, BAYES_00 -4.90 X-ELTE-SpamLevel: X-ELTE-SpamScore: -4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1125 Lines: 31 * Florian Schmidt wrote: > i got a deadlock though. it was a weird one. mouse and keyboard > [including sysrq] froze. but the find / i started kept on running in > an xterm. had to press reset due to lack of second machine.. i've uploaded -V0.6.3 to the usual place: http://redhat.com/~mingo/realtime-preempt/ which fixes two issues: - priorities of SCHED_OTHER tasks not getting properly managed, hence they could end up 'starving' other SCHED_OTHER tasks pretty indefinitely. This could possibly solve the 'temporary lockup' problem reported by Mark H Johnson. - fixed the 'high load average' bug i dont know whether this will solve the 'hard lockups' reported though. It could solve your problem because the 'find /' kept running so it wasnt a hard lockup. I'll keep testing and i'll fix any problem i can reproduce myself. Ingo - 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/