From owner-freebsd-fs@FreeBSD.ORG Wed Mar 17 22:33:42 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CF1521065675 for ; Wed, 17 Mar 2010 22:33:42 +0000 (UTC) (envelope-from rmacklem@uoguelph.ca) Received: from esa-annu.mail.uoguelph.ca (esa-annu.mail.uoguelph.ca [131.104.91.36]) by mx1.freebsd.org (Postfix) with ESMTP id 854AA8FC1A for ; Wed, 17 Mar 2010 22:33:42 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvsEALb1oEuDaFvI/2dsb2JhbACbH3O5J4R2BA X-IronPort-AV: E=Sophos;i="4.51,261,1267419600"; d="scan'208";a="69386192" Received: from darling.cs.uoguelph.ca ([131.104.91.200]) by esa-annu-pri.mail.uoguelph.ca with ESMTP; 17 Mar 2010 18:33:41 -0400 Received: from localhost (localhost.localdomain [127.0.0.1]) by darling.cs.uoguelph.ca (Postfix) with ESMTP id 8F18D940119; Wed, 17 Mar 2010 18:33:41 -0400 (EDT) X-Virus-Scanned: amavisd-new at darling.cs.uoguelph.ca Received: from darling.cs.uoguelph.ca ([127.0.0.1]) by localhost (darling.cs.uoguelph.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 7PcJ6gSLRSRj; Wed, 17 Mar 2010 18:33:41 -0400 (EDT) Received: from muncher.cs.uoguelph.ca (muncher.cs.uoguelph.ca [131.104.91.102]) by darling.cs.uoguelph.ca (Postfix) with ESMTP id 2AA1A940099; Wed, 17 Mar 2010 18:33:41 -0400 (EDT) Received: from localhost (rmacklem@localhost) by muncher.cs.uoguelph.ca (8.11.7p3+Sun/8.11.6) with ESMTP id o2HMkRx21456; Wed, 17 Mar 2010 18:46:27 -0400 (EDT) X-Authentication-Warning: muncher.cs.uoguelph.ca: rmacklem owned process doing -bs Date: Wed, 17 Mar 2010 18:46:27 -0400 (EDT) From: Rick Macklem X-X-Sender: rmacklem@muncher.cs.uoguelph.ca To: Jeremy Chadwick In-Reply-To: <20100317113953.GA14582@icarus.home.lan> Message-ID: References: <201003171120.o2HBK3CV082081@freefall.freebsd.org> <20100317113953.GA14582@icarus.home.lan> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-fs@FreeBSD.org, Kai Kockro Subject: Re: kern/144330: [nfs] mbuf leakage in nfsd with zfs 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: Wed, 17 Mar 2010 22:33:42 -0000 On Wed, 17 Mar 2010, Jeremy Chadwick wrote: > On Wed, Mar 17, 2010 at 11:20:03AM +0000, Kai Kockro wrote: >> The following reply was made to PR kern/144330; it has been noted by GNATS. > > The problem appears to be specific to UDP NFS and not TCP. The > following is a statement from the PR originator: > Yes. Using TCP mounts or switching to the experimental server ("-e" option on both of mountd and nfsd) makes the problem go away. It also goes away if you disable the reply cache in the regular server, but I wouldn't recommend that. Sofar, i've had no luck coming up with a fix, so it could be a while... rick