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Comment by __turbobrew__ | Hacker News Reader

Yea, NFS processes can get into an uninterruptible and unkillable sleep state where then only way to clean up is to reboot.

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Instead of rebooting, try a lazy unmount on Linux.

  umount -l /stuck/directory

You still get stuck processes on D state which can be locking other resources. Maybe the kernel could use an alternate kill api for this, as being able to kill a D state process normally is problematic in many apps and should never be possible 'accidentally'.

So glad/validated to see this thread. I always inevitably end up ranting about this when NFS comes up.

The frustrating thing is, a shocking number of people either don't realize it or simply can't.

I've lost weeks of my life to D-state. All TCP, all new protocol revisions. Datacenter wide deployment with redundant ports, paths, everything.

Soft mount no?

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