Good Day!
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
Regards,
Kirill
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