Date: Fri, 18 Feb 2011 06:09:38 -0800 (PST) From: Kirill Yelizarov <ykirill@yahoo.com> To: freebsd-stable@freebsd.org Subject: Re: NFS client over udp Message-ID: <600887.27323.qm@web120520.mail.ne1.yahoo.com> In-Reply-To: <20110218140555.GA58978@icarus.home.lan>
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--- On Fri, 2/18/11, Jeremy Chadwick <freebsd@jdc.parodius.com> wrote: > From: Jeremy Chadwick <freebsd@jdc.parodius.com> > Subject: Re: NFS client over udp > To: "Kirill Yelizarov" <ykirill@yahoo.com> > Cc: freebsd-stable@freebsd.org > Date: Friday, February 18, 2011, 5:05 PM > On Fri, Feb 18, 2011 at 05:27:00AM > -0800, Kirill Yelizarov wrote: > > I have a reproducible memory leak when using nfs > client with an old > > nfs server using udp protocol. I'm running rsync every > hour from a > > mounted nfs volume to an ufs local volume. Each time > rsync is running > > wired memory is increased. Wired memory is rising when > rsync is in > > getblk or biord state. When rsync is complete memory > is not freed and > > lately all memory is in active or wired state and > system starts > > swapping. I didn't see such behavior when client os > was RELEASE-8.0. > > Then i switched to STABLE-8.1 of late summer and found > this leak so i > > upgraded to STABLE-8.2Prerelease and got the same > leak. vmstat -m > > shows nothing big. > > > > client version: FreeBSD imap1.***.com 8.2-PRERELEASE > FreeBSD > > 8.2-PRERELEASE #0: Thu Feb 17 13:54:25 MSK 2011 > > root@imap1.****.com:/usr/obj/usr/src/sys/IMAP1 > amd64 > > > > i tried different mounting options: > 1 - > > > rw,rsize=32768,wsize=32768,nfsv3,intr,mntudp,rdirplus, > > readdirsize=65536,noauto,noexec 2 - > rw,nfsv3,mntudp,noexec > > > > i also tried setting -tso -txcsum -rxcsum for igb > network card > > Is ZFS in use on the system which sees rising wired > memory? No, ufs only. > > -- > | Jeremy Chadwick > > jdc@parodius.com > | > | Parodius Networking > http://www.parodius.com/ | > | UNIX Systems Administrator > Mountain View, CA, USA | > | Making life hard for others since 1977. > PGP 4BD6C0CB > | > >
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