From mboxrd@z Thu Jan 1 00:00:00 1970 From: Doug Anderson Subject: Re: hangs on boot in 9984d7394618df9 Date: Mon, 8 Apr 2013 15:45:31 -0700 Message-ID: References: <515DB465.1060004@sgi.com> <20130404204459.GU21522@ZenIV.linux.org.uk> <515F0456.9040803@sgi.com> <20130405173623.GE4068@ZenIV.linux.org.uk> <515F3A71.9080008@sgi.com> <20130405210042.GH4068@ZenIV.linux.org.uk> <5162E36F.5020305@sgi.com> <20130408155847.GS4068@ZenIV.linux.org.uk> <51632DF8.2080402@sgi.com> <20130408212327.GU4068@ZenIV.linux.org.uk> <20130408214834.GV4068@ZenIV.linux.org.uk> <516341ED.5060803@wwwdotorg.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from mail-lb0-f180.google.com ([209.85.217.180]:36144 "EHLO mail-lb0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S936100Ab3DHWpd (ORCPT ); Mon, 8 Apr 2013 18:45:33 -0400 Received: by mail-lb0-f180.google.com with SMTP id t11so6279262lbi.11 for ; Mon, 08 Apr 2013 15:45:32 -0700 (PDT) In-Reply-To: <516341ED.5060803@wwwdotorg.org> Sender: linux-next-owner@vger.kernel.org List-ID: To: Stephen Warren Cc: Al Viro , Nathan Zimmer , Andrew Morton , "linux-kernel@vger.kernel.org" , linux-fsdevel@vger.kernel.org, "Eric W. Biederman" , David Woodhouse , stable@vger.kernel.org, "linux-next@vger.kernel.org" Hi, On Mon, Apr 8, 2013 at 3:17 PM, Stephen Warren wrote: >> Anyway, I've just pushed a splitup of that commit (carved in 3 pieces) >> into vfs.git#pipe-splitup; could you check which part triggers that >> hang? Should propagate in a few... > > It looks like "pipe: unify ->release() and ->open()" introduces the > problem. Note that I had to add a prototype for fifo_open() before the > structs that reference it for that commit to compile. It sounds like Stephen has provided you the info you needed so not doing any extra testing now, but I figured I'd chime in that I hit problems this morning with linux-next and it appears to be the same thing. I did a revert of 9984d7394618df9 and (plus a revert of a handful of patches to the same file) and problems are resolved. The failure case is really weird in that everything works well booting to a simple /bin/bash but fails when you do more complex tasks. Anyway: If you need some extra testing feel free to CC me. -Doug