Bug#687456: btrfs: Oops when adding a device on a degraded raid1 filesystem

[Antoine Sirinelli <antoine@monte-stello.com>]

severity 687456 normal
thanks

In fact I created the RAID1-like filesystem the wrong way (btrfs wiki
is wrong). I was using a RAID1 strategy only for the metadata and not
the data. With the following command-line to create the fs, I no longer
get the Oops:

# mkfs.btrfs -m raid1 -d raid1 /dev/vdb /dev/vdc
(-d flag added).

Nevertheless, we still have a condition where we got a kernel Oops where
we should not so I am leaving the bug open but with a "normal" severity.

Antoine