Stathis Kamperis <ekamperi@gmail.com> added the comment:
Dunno if this helps to bisect the offending code, but forcing mount_nfs to use
v2 protocol makes the problem go completely away. I have already copied the
video like 10 times without encountering a b/lock situation.
If I unmount the filesystem and remount it as v3 this time, the problem reappears.
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DragonFly issue tracker <bugs@lists.dragonflybsd.org>
<http://bugs.dragonflybsd.org/issue1695>
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