Date: Mon, 31 Jul 2006 17:00:41 GMT From: Geoffroy Desvernay <dgeo@egim-mrs.fr> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/97686: [nfs] massive NFS server performance break under "options QUOTA" Message-ID: <200607311700.k6VH0fqV087593@freefall.freebsd.org>
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The following reply was made to PR kern/97686; it has been noted by GNATS.
From: Geoffroy Desvernay <dgeo@egim-mrs.fr>
To: Geoffroy Desvernay <dgeo@egim-mrs.fr>
Cc: bug-followup@FreeBSD.org, rse@freebsd.org,
olivier.page@egim-mrs.fr
Subject: Re: kern/97686: [nfs] massive NFS server performance break under
"options QUOTA"
Date: Mon, 31 Jul 2006 18:51:44 +0200
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We now have a stable machine without QUOTA *and* INET6.
(only without QUOTA the machine died 24hours later). We left rpc.lockd
running.
Here is a simple zsh script to make it crash when with QUOTA-enabled
kernel (use $(seq 1 50) or ? with another shell). launch it on a client
and see 'top' on the server... I'm not kernel (nor nfs) hacker, but I
may try some patches if it can help.
mount options:
/dev/da0s1g on /u (ufs, NFS exported, local, with quotas, soft-updates,
acls, fsid e0bf4c447f5cf8a5)
---------------- crashlocks.zsh
#!/usr/local/bin/zsh -x
for i in {1..50} ; do
lockfile truc$i &
done
----------------
Hope this can help...
--
Geoffroy Desvernay
EGIM Marseille
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