Details
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Bug
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Resolution: Incomplete
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Major
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None
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Lustre 2.4.1
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None
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CentOS 6.4, kernel 2.6.32-358.18.1.el6.x86_64, Lustre client acting as NFS server for 2-node cluster.
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12211
Description
Cluster head node acts as Lustre client, and re-exports Lustre mountpoint via NFS to its compute node NFS clients.
When applications start using NFS with significant I/O (gigabit ethernet is sufficient), head node NFS services hang, and eventually the head node crashes with a GPF panic. There are messages on the system console and in "dmesg" about both Lustre and nfsd issues (see attached vmcore-dmesg.txt file).