>Number: 144330 >Category: kern >Synopsis: mbuf leakage in nfsd with zfs >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Feb 26 21:40:02 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Gerrit Kühn >Release: 8-stable as of 24th of Feb >Organization: AEI >Environment: FreeBSD mclane.rt.aei.uni-hannover.de 8.0-STABLE FreeBSD 8.0-STABLE #2: Fri Feb 26 14:15:47 CET 2010 r...@mclane.rt.aei.uni-hannover.de:/usr/obj/usr/src/sys/GENERIC amd64
>Description: When serving nfs dirs from a zfs storage, mbuffers keep being drained, but are never freed. See http://www.pmp.uni-hannover.de/test/Mitarbeiter/g_kuehn/data/mbuf.pdf as an example. y-axis is output of total mbuf clusters by netstat -m, x-axis is time in minutes. The flat region in the upper right corner corresponds to approx. 10min with nfsd turned off. Several others report similar problems (see thread on -stable with topic "mbuf leakage with nfs/zfs? (was: em0 freezes on ZFS server)"). >How-To-Repeat: Server nfs-dirs from zfs storage with 8-stable and monitor mbuf usage. >Fix: Unknown, but urgently needed. :-) >Release-Note: >Audit-Trail: >Unformatted: _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
