[DragonFlyBSD - Bug #2476] (Closed) tmpfs namecache(?)

bugtracker-admin at leaf.dragonflybsd.org bugtracker-admin at leaf.dragonflybsd.org
Tue Jun 3 09:38:44 PDT 2014

Issue #2476 has been updated by marino.

Status changed from Feedback to Closed

There may be a bug in there somewhere but it was exposed by gross user error.  Nobody is going to work on this AFAICT so it is reasonable to close the ticket.

Bug #2476: tmpfs namecache(?)

* Author: marino
* Status: Closed
* Priority: Normal
* Assignee: 
* Category: VFS subsystem
* Target version: 3.9.x
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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