From owner-freebsd-fs@FreeBSD.ORG Tue Jan 22 01:04:32 2008 Return-Path: Delivered-To: fs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 373C616A418 for ; Tue, 22 Jan 2008 01:04:32 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42]) by mx1.freebsd.org (Postfix) with ESMTP id 0820E13C45D for ; Tue, 22 Jan 2008 01:04:31 +0000 (UTC) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [209.31.154.41]) by cyrus.watson.org (Postfix) with ESMTP id A931B46CEC; Mon, 21 Jan 2008 20:04:31 -0500 (EST) Date: Tue, 22 Jan 2008 01:04:31 +0000 (GMT) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Rune , Jan Harkes In-Reply-To: <20080119165056.E3375@fledge.watson.org> Message-ID: <20080122010003.B29737@fledge.watson.org> References: <20080119165056.E3375@fledge.watson.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: fs@FreeBSD.org Subject: Re: Various FreeBSD Coda fixes X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Jan 2008 01:04:32 -0000 On Sat, 19 Jan 2008, Robert Watson wrote: > I'm not sure if these can be MFC'd before 7.0, but will ask re@ if we can > fit them in. Certainly, it's better than panicking, which is a relatively > likely scenario with what's currently in RELENG_7. I've merged these, and a couple more since then, to RLEENG_7, and will request an MFC to RELENG_7_0 to include them in the forthcoming FreeBSD 7.0. It would be very helpful, if you have a 7.x box, if you could update to the head of RELENG_7 to pick up these fixes, and test with Coda with them. I'm aware of four outstanding problems: - Rune has reported a hang with X11 and Coda, but we haven't yet been able to track it down much yet -- might not be related to Coda. - Linux binaries have problems listing directories in Coda under Linux emulation. Won't be fixed for 7.0. - ".." and "." sometimes appear to have problems in the root directory of the root volume of a realm (i.e., /coda/testserver.coda.cs.cmu.edu). I'm not sure if this is a Coda client bug or a kernel bug, quite possibly the latter. This most likely won't be fixed for 7.0 unless it jumps out at me tomorrow. - getpwd() appears to have problems, possibly related to the previous bug if it's unable to recurse to the root. Because Coda doesn't use the global VFS namecache, the __getcwd() system call which is often able to resolve the current directly doesn't work with Coda; the userspace implementation walks to the root looking for the child directory in each parent, which can have problems if stat() and inode numbers are inconsistent, or if there's a broken ".." step. Ditto on this most likely not being fixed for 7.0. Any other problems, especially panics with the backport of the other fixes to RELENG_7, are very much fair game, but having the reports by the end of Tuesday would be extremely helpful. Robert N M Watson Computer Laboratory University of Cambridge