Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762215AbYBEWW1 (ORCPT ); Tue, 5 Feb 2008 17:22:27 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1757657AbYBEWWR (ORCPT ); Tue, 5 Feb 2008 17:22:17 -0500 Received: from mx1.redhat.com ([66.187.233.31]:54891 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755161AbYBEWWP (ORCPT ); Tue, 5 Feb 2008 17:22:15 -0500 Date: Tue, 5 Feb 2008 14:19:44 -0800 From: Pete Zaitcev To: Andrew Morton Cc: "Oliver Pinter" , "Linux Kernel" , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, "James Morris" , linux-usb@vger.kernel.org, zaitcev@redhat.com Subject: Re: [2.6.24 REGRESSION] BUG: Soft lockup - with VFS Message-Id: <20080205141944.773140a1.zaitcev@redhat.com> In-Reply-To: <20080205140506.c6354490.akpm@linux-foundation.org> References: <6101e8c40801280031v1a860e90gfb3992ae5db37047@mail.gmail.com> <20080204213911.1bcbaf66.akpm@linux-foundation.org> <1202219216.27371.24.camel@moss-spartans.epoch.ncsc.mil> <20080205104028.190192b1.akpm@linux-foundation.org> <6101e8c40802051115v12d3c02br24873ef1014dbea9@mail.gmail.com> <6101e8c40802051321l13268239m913fd90f56891054@mail.gmail.com> <6101e8c40802051348w2250e593x54f777bb771bd903@mail.gmail.com> <20080205140506.c6354490.akpm@linux-foundation.org> Organization: Red Hat, Inc. X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.7; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 849 Lines: 19 On Tue, 5 Feb 2008 14:05:06 -0800, Andrew Morton wrote: > Looks like you deadlocked in ub_request_fn(). I assume that you were using > ub.c in 2.6.23 and that it worked OK? If so, we broke it, possibly via > changes to the core block layer. > > I think ub.c is basically abandoned in favour of usb-storage. If so, > perhaps we should remove or disble ub.c? Actually I think it may be an argument for keeping ub, if ub exposes a bug in the __blk_end_request. I'll look at the head of the thread and see if Mr. Pinter has hit anything related to Mr. Ueda's work. -- Pete -- 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/