Re: list subvolumes with new btrfs command

[C Anthony Risinger <anthony@extof.me>]

> need super root? in my ubuntu10.04 with latest btrfs-progs:
>
> $ ./btrfs subvolume list /media/sda3-100g/
> ERROR: can't perform the search
> $ sudo ./btrfs subvolume list /media/sda3-100g/
> ID 258 top level 5 path misc/snap/snap-4-26

ah sorry, i forgot to mention that it doesn't work as super user
either, same result:

$ sudo btrfs subvolume list /
ERROR: can't perform the search

the btrfs-progs in ubuntu is probably slightly behind git HEAD (what
i'm using in Arch package), maybe it broke recently, i might try to
bisect and see it i can pinpoint to problem commit.  i am also using
kernel 2.6.33 (ubuntu is .32 i think) that's why i thought maybe there
was an issue there; it seems like the ioctl() call is failing no
matter what in my case.

other details i can think of:
1) filesystem was created by a 2.6.31 kernel

i will use loopback + BTRFS to test what is happening here and report
back; maybe i can't scan / ...?  thanks for the response, any other
input is very much appreciated.

thanks,
C Anthony