Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269065AbUJUJ60 (ORCPT ); Thu, 21 Oct 2004 05:58:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S270671AbUJUJ46 (ORCPT ); Thu, 21 Oct 2004 05:56:58 -0400 Received: from ns.virtualhost.dk ([195.184.98.160]:11997 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S270640AbUJUJyl (ORCPT ); Thu, 21 Oct 2004 05:54:41 -0400 Date: Thu, 21 Oct 2004 11:53:45 +0200 From: Jens Axboe To: Thomas Gleixner Cc: Rui Nuno Capela , 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 Subject: Re: [patch] Real-Time Preemption, -RT-2.6.9-rc4-mm1-U8 Message-ID: <20041021095344.GA10531@suse.de> References: <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> <1098350190.26758.24.camel@thomas> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1098350190.26758.24.camel@thomas> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 740 Lines: 21 On Thu, Oct 21 2004, Thomas Gleixner wrote: > On Thu, 2004-10-21 at 11:12, Rui Nuno Capela wrote: > > [] queuecommand+0x70/0x7c [usb_storage] (24) > > As I already pointed out, this is a problem due to up(sema) in > queuecommand. That's one of the semaphore abuse points, which needs to > be fixed. > > The problem is that semaphores are hold by Process A and released by > Process B, which makes Ingo's checks trigger That's utter crap, it's perfectly valid use. -- Jens Axboe - 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/