Issue #2476 has been updated by John Marino.

I think the "sleep" and "ls" part is a red herring.  It fails sometimes with 
sleep of 1, 3, and 5 seconds.
It now appears that memory is never allocated, so the cpdup command ends 
immediately.

Strangely it seems to work every other time, e.g.
1st: yes
2nd: no
3rd: yes
4th: no

Run consecutively...
There is definitely something funny with tmpfs here.
----------------------------------------
Bug #2476: tmpfs namecache(?)
http://bugs.dragonflybsd.org/issues/2476

Author: John Marino
Status: New
Priority: Normal
Assignee: 
Category: 
Target version: 


Using cpdup, I directly copied a pfs snapshot to a tmpfs mount:
  mount -t tmpfs tmpfs /path/to/mypoint
  cpdup -x -i0 /path/to/snapshot/ /path/to/mypoint/
  mount -t devfs devfs /path/to/mypoint/dev

(/path/to/snapshot/dev exists, is a directory, and is empty)

The final mount will fail unless a sleep command of a second or two is put 
between the cpdup and mount commands, or if something accesses mymount point 
like ls command.

Seems that this is an issue with tmpfs, possibly with namecache according to 
Venkatesh.


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