Date: Sat, 27 Feb 2010 22:40:43 +0100 From: =?iso-8859-1?Q?Eirik_=D8verby?= <ltning@anduin.net> To: =?iso-8859-1?Q?Gerrit_K=FChn?= <gerrit@pmp.uni-hannover.de> Cc: freebsd-fs@freebsd.org, stable@freebsd.org, Willem Jan Withagen <wjw@digiware.nl>, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: mbuf leakage with nfs/zfs? Message-ID: <0C3ADBC6-66EA-4316-9366-1814D27B3A87@anduin.net> In-Reply-To: <20100227223801.15aa657b.gerrit@pmp.uni-hannover.de> References: <20100226141754.86ae5a3f.gerrit@pmp.uni-hannover.de> <E1Nl1mb-0002Mx-M9@kabab.cs.huji.ac.il> <E1Nl2JK-00033U-Fw@kabab.cs.huji.ac.il> <20100226174021.8feadad9.gerrit@pmp.uni-hannover.de> <E1Nl6VA-000557-D9@kabab.cs.huji.ac.il> <20100226224320.8c4259bf.gerrit@pmp.uni-hannover.de> <4B884757.9040001@digiware.nl> <20100227080220.ac6a2e4d.gerrit@pmp.uni-hannover.de> <4B892918.4080701@digiware.nl> <20100227202105.f31cbef7.gerrit@pmp.uni-hannover.de> <20100227193819.GA60576@icarus.home.lan> <BD8AC9F6-DF96-41F9-8E92-48A4E5606DC7@anduin.net> <20100227223801.15aa657b.gerrit@pmp.uni-hannover.de>
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On 27. feb. 2010, at 22.38, Gerrit K=FChn wrote: > On Sat, 27 Feb 2010 21:32:39 +0100 Eirik =D8verby <ltning@anduin.net> = wrote > about Re: mbuf leakage with nfs/zfs?: >=20 > E> I've had a discussion with some folks on this for a while. I can = easily > E> reproduce this situation by mounting a FreeBSD ZFS filesystem via > E> NFS-UDP from an OpenBSD machine. Telling the OpenBSD machine to use = TCP > E> instead of UDP makes the problem go away. >=20 > So we see this problem with udp clients from OpenBSD and Linux. I have not had the opportunity to test with Linux or anything else. = Could try from Windows, but not sure I want to get my hands THAT dirty. > E> Other FreeBSD systems mounting the same share, either using UDP or = TCP, > E> does not cause the problem to show up. >=20 > As Daniel reported he saw the problem with FBSD 8-stable: Which = version > was the FBSD-client that worked for you with udp? 7.1, 7.2, 8.0-RCsomething and 8.0-RELEASE - no problems with either. > E> A patch was suggested by Rick Macklem, but that did not solve the = issue: > E> = http://lists.freebsd.org/pipermail/freebsd-current/2009-December/014181.ht= ml >=20 > Yeah, I also found and tried this on Friday - unfortunately without = any > success, the leakage is still there. >=20 >=20 > cu > Gerrit >=20
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