Date: Sat, 27 Feb 2010 09:24:10 +0200 From: Daniel Braniss <danny@cs.huji.ac.il> To: Gerrit =?ISO-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de> Cc: stable@freebsd.org, Willem Jan Withagen <wjw@digiware.nl>, Jeremy Chadwick <freebsd@jdc.parodius.com> Subject: Re: mbuf leakage with nfs/zfs? Message-ID: <E1NlH22-000AIE-Lx@kabab.cs.huji.ac.il> In-Reply-To: <20100227080928.e49cb82c.gerrit@pmp.uni-hannover.de> References: <4B86F384.3010308@digiware.nl> <2a41acea1002251459v40e8c6ddxd0437decbada4594@mail.gmail.com> <4B8795B1.4020006@digiware.nl> <20100226120339.GB17798@icarus.home.lan> <20100226133138.d47dd080.gerrit@pmp.uni-hannover.de> <20100226134429.041ea6f2.gerrit@pmp.uni-hannover.de> <E1Nkzry-0000AC-0S@kabab.cs.huji.ac.il> <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> <20100227080928.e49cb82c.gerrit@pmp.uni-hannover.de>
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> On Fri, 26 Feb 2010 23:12:39 +0100 Willem Jan Withagen <wjw@digiware.nl> > wrote about Re: mbuf leakage with nfs/zfs?: > > WJW> > DB> I'll have to do some packet snooping to check if it's TCP or > WJW> > DB> UDP nfs traffic, since some of the clients are Linux ... > > WJW> > I have Linux clients, too. Some use tcp, some udp. > > WJW> I have Linux and FreeBSD clients running. The build system runs on > WJW> Linux. All Linux's are UDP.... > > Another shot in the dark: > After upgrading the server, all my Linux clients hang with "stale nfs > dir/file handle/whatever". I was not able to umount them (not even > forcefully). I had to use either lazy forceful umount (-fl) or reboot. Some > of these clients are still hanging around, because they are physically > hard to access (clean room installs etc.). Maybe these clients still try to > establish connections that eat up the buffers and never come back? I doubt it, but here is another shot: are we all running samba? I'm asking because the lock manager keeps dying and ... cheers, danny PS: I dropped Jack from the CC, I think em is innocent :-)
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