Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269917AbUJTLlg (ORCPT ); Wed, 20 Oct 2004 07:41:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270055AbUJTLFT (ORCPT ); Wed, 20 Oct 2004 07:05:19 -0400 Received: from mx1.elte.hu ([157.181.1.137]:8617 "EHLO mx1.elte.hu") by vger.kernel.org with ESMTP id S264085AbUJTKzI (ORCPT ); Wed, 20 Oct 2004 06:55:08 -0400 Date: Wed, 20 Oct 2004 12:56:30 +0200 From: Ingo Molnar To: Michal Schmidt Cc: linux-kernel@vger.kernel.org, Lee Revell , Rui Nuno Capela , Mark_H_Johnson@Raytheon.com, "K.R. Foley" , Bill Huey , Adam Heath , Florian Schmidt , Thomas Gleixner , Fernando Pablo Lopez-Lezcano Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Message-ID: <20041020105630.GB2614@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> <4176403B.5@stud.feec.vutbr.cz> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4176403B.5@stud.feec.vutbr.cz> 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: 707 Lines: 20 * Michal Schmidt wrote: > I'm getting these BUGs when I use netconsole with Real-Time Preemption > (but netconsole works): you are getting them because interrupts get disabled somewhere in the path. Do your changes perhaps introduce a local_irq_save() or local_irq_disable()? (in PREEMPT_REALTIME spin_lock_irq*() does not disable interrupts for mutex-based spinlocks, so the only way to get irqs disabled is explicitly.) 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/