Yes, behaviour and the log-messages were exactly the same under 3.16.0-51, as you can see in marius' stacktrace.
We were both facing this using vagrant-built virtualbox-machines with NFS-shares on Lenovo Thinkpads W520/30.
I will try to reproduce it also on lts-vivid shortly.
Thanks @marius888.
Yes, behaviour and the log-messages were exactly the same under 3.16.0-51, as you can see in marius' stacktrace.
We were both facing this using vagrant-built virtualbox-machines with NFS-shares on Lenovo Thinkpads W520/30.
I will try to reproduce it also on lts-vivid shortly.