On Mon, 26 Oct 2015, Robert Elz wrote:
For workarounds, mount using tcp (won't cure the problem, but will
make it far less common), and use interruptible mounts (mount_nfs -T -i)
so when it does hang, you can kill the process(es) at least.
A mee-too reply.
I've setup a NetBSD 7.0/amd64 bulk-build domU as I did for NetBSD 6.1/amd64, it
uses our platform's NetApp NFS servers (thousands of Linux domUs are using
those, the hardware is not guilty).
I'm trying to get rid of those hangs for weeks now, tried every mount flag
combination without success, the system would freeze randomly, leaving the whole
OS unresponsive. There's no log, no kernel message, the domU actually responds
to network solicitations (ping, telnet 22...) but once it's frozen, it is
impossible to run any command, it will just hang.
The exact same setup is successfully running since Sept 2014 on
NetBSD 6.1/amd64.
Any idea how to get some valuable information to help tracking down this
awful behaviour?
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Emile `iMil' Heitor * <imil@{home.imil.net,NetBSD.org,gcu.info}>
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