[Beowulf] [rpciod] in D state
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Henning Fehrmann henning.fehrmann at aei.mpg.deFri Jul 25 09:26:24 PDT 2008
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Hello everybody, I observed the following problem: Usually, on the nodes we have 4 rpciod processes running: [rpciod/0] - [rpciod/3] I assume, the squared brackets mean that these are kernel processes. >From time to time one of them changes in to the 'D' (Uninterruptible sleep) mode. Once it happens on a particular node it is also impossible to mount any nfs exports on this node, which seems logical since the nfs client uses the portmapper. Stopping the automounter, nfs-common, portmapper did not help. I was also unable to unload the nfs module. I tried to debug the portmapper by setting the kernel parameter sunrpc.nfs_debug to 65536 but this creates a lot of junk. Has somebody an idea, what might kill the rpciod process and one could avoid this? Cheers, Henning Fehrmann
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