On Fri, Mar 09, 2012 at 12:08:12PM +0100, Jacek Luczak wrote:

For this one I've created also a report [1].

quoted

so there is probably other problem in reservations and it just blew up during
the unlink call.

Could be as this came up after a longer time of throwing above WARN_ON.

I'm now cloning the Linus tree. Lets see if both will pop up on there.

The 3.3-rc6 should help in one case, with

http://thread.gmane.org/gmane.comp.file-systems.btrfs/15268

but I was able to reproduce the WARN_ON even with this patch, didn't get
to debugging it again yet.


david