Using the soft timeout option for NFS mounts is a really bad idea
and the nfs(5) manpage explicitly warns about it's issues:
NB: A so-called "soft" timeout can cause silent data
corruption in certain cases. As such, use the soft op‐
tion only when client responsiveness is more important
than data integrity. Using NFS over TCP or increasing
the value of the retrans option may mitigate some of the
risks of using the soft option.
So don't enable it by default, anyone who feels keen to take the
risk can specify it manually on kernel command line.
Signed-off-by: Matthias Reichl <hias@horus.com>