Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932532Ab3CUWNB (ORCPT ); Thu, 21 Mar 2013 18:13:01 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47039 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751767Ab3CUWNA (ORCPT ); Thu, 21 Mar 2013 18:13:00 -0400 Date: Thu, 21 Mar 2013 18:12:56 -0400 From: Dave Jones To: Linus Torvalds Cc: Al Viro , Linux Kernel Subject: Re: VFS deadlock ? Message-ID: <20130321221256.GA30620@redhat.com> Mail-Followup-To: Dave Jones , Linus Torvalds , Al Viro , Linux Kernel References: <20130321190653.GA15479@redhat.com> <20130321192935.GY21522@ZenIV.linux.org.uk> <20130321202635.GA16406@redhat.com> <20130321203639.GC16406@redhat.com> <20130321204704.GZ21522@ZenIV.linux.org.uk> <20130321210255.GD16406@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1255 Lines: 34 On Thu, Mar 21, 2013 at 02:18:15PM -0700, Linus Torvalds wrote: > On Thu, Mar 21, 2013 at 2:02 PM, Dave Jones wrote: > > > > here we go... > > > > WARNING: at fs/namei.c:2335 lock_rename+0x156/0x160() > > p1=irda p2=irda > > Ok, good. I ssupect it's /proc or /sys, we do have that entry there. > > But in fact I suspect we do want the parent name after all, because I > think we have multiple "irda" directories. There's the one in > /proc/net/ (added by net/irda/irproc.c), and there's a sysctl CTL_DIR > "irda" directory (kernel/sysctl_binary.c). And there might even be a > few other ones in /sys too, thanks to the ldisc called "irda" etc. > > I don't see where the shared inode comes from, but I suspect that > would be easier to guess if we actually see which particular case it > ends up being.. it's not just irda fwiw.. p1=rpc p2=rpc p1parent=net p2parent=net not sure why the printk with Al's last debugging info didn't print out.. Investigating.. Dave -- 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/