Date: Sun, 12 Sep 2010 23:09:44 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: David Ehrmann <ehrmann@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: NFS lockups with VMware esxi client Message-ID: <1431942489.798180.1284347384700.JavaMail.root@erie.cs.uoguelph.ca> In-Reply-To: <4C8D78E3.3080404@gmail.com>
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> I have NFS sharing a ZFS pool that VMware esxi stores files on. When > put under stress (an OS installation, but not Linux compilation), the > NFS server locks, spiking to 100% CPU usage. Not even kill -KILL can > stop the process, so rebooting is required. > > PID USERNAME THR PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 885 root 4 44 0 5804K 988K CPU2 0 239:39 100.00% nfsd > > Other people have run into this problem, but I never found a solution. > I'm running 8.1-PRERELEASE on amd64, but I think others have seen the > problem on 8.1-RELEASE. > > zpool status reports that the pool is healthy, so that's not it. My > only two ideas are hosting on something other than ZFS and trying to > reproduce it with a lot of big, random NFS requests. Any other ideas? > I believe it is patched in head/current. A compatible patch is at: http://people.freebsd.org/~rmacklem/freebsd8.1-patches/replay.patch rick
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