Date: Thu, 30 Sep 2010 11:56:18 GMT From: "Oleg A. Mamontov" <oleg@mamontov.net> To: freebsd-gnats-submit@FreeBSD.org Subject: misc/151111: vnodes leakage during zfs unmount Message-ID: <201009301156.o8UBuIGl016726@www.freebsd.org> Resent-Message-ID: <201009301200.o8UC0F2Y088775@freefall.freebsd.org>
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>Number: 151111 >Category: misc >Synopsis: vnodes leakage during zfs unmount >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Thu Sep 30 12:00:15 UTC 2010 >Closed-Date: >Last-Modified: >Originator: Oleg A. Mamontov >Release: 8-STABLE >Organization: Rambler Internet Holding >Environment: FreeBSD store06.video.rambler.ru 8.0-20100505-SNAP FreeBSD 8.0-20100505-SNAP #0: Wed May 5 07:45:52 UTC 2010 root@nat-sl.rambler.ru:/usr/obj/usr/src/sys/DEVEL amd64 >Description: During `zfs mount tank`, `zfs unmount tank` vfs.numvnodes is growing up to kern.maxvnodes. >How-To-Repeat: mdconfig -a -s128m -u0 zpool create tank md0 zfs umount tank for i in `jot 1000`; do zfs mount tank; printf '%4d ' $i; sysctl vfs.numvnodes; zfs umount tank; done ######################## 1 vfs.numvnodes: 708 2 vfs.numvnodes: 709 3 vfs.numvnodes: 710 4 vfs.numvnodes: 711 5 vfs.numvnodes: 712 .. 995 vfs.numvnodes: 1702 996 vfs.numvnodes: 1703 997 vfs.numvnodes: 1704 998 vfs.numvnodes: 1705 999 vfs.numvnodes: 1706 1000 vfs.numvnodes: 1707 >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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