Date: Sun, 12 Sep 2010 18:05:39 -0700 From: David Ehrmann <ehrmann@gmail.com> To: freebsd-current@freebsd.org Subject: NFS lockups with VMware esxi client Message-ID: <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?
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