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So I have a new server that is up and running with Centos 6, and the load average is stuck hovering around 1, even when the machine is nearly idle. I reviewed the process table and found this running:

root@myserver:~]# ps -efl|grep " [D] "
1 D root     43252     2  0  80   0 -     0 rpc_wa Apr01 ?        00:00:00 [10.125.50.56-ma]

The timing (Apr01) lines up perfectly with my trending graphs, and it was right around the time I was working with mounting an NFS share from that IP address. However, the thread is in uninterruptible sleep, and I don't know how to get rid of it. I have unmounted any/all NFS mounts I had, and it still won't go away.

Does anyone know what this process/thread is, and if there is a way to help it exit without restarting the box? It is already in production so I'd really like to avoid that.

fixer1234
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Aaron R.
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  • The `D` flag (2nd column) says that it's in uninterruptable sleep and I think you can't kill that with `-9`. You can try `-SEGV`. And you can try to find out the exact `WCHAN`, `rpc_wa` is just the beginning of it. – ott-- Apr 09 '15 at 20:01

1 Answers1

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If it's ok just to kill the thread, you can try to use command

kill -9 43252

It will send SIGKILL signal to the process, which should immediately terminate it.

jjurm
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