zygo: trace "unable to find logical 0 length 4096"

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b16539fd2c2399a8fdab5818e1533453e0b1c794..77e9d0482445743b1010199368bfd8c2d7a05e5e 100644 (file)
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2997,6 +2997,7 @@ struct extent_map *btrfs_get_chunk_map(struct btrfs_fs_info *fs_info,
        if (!em) {
                btrfs_crit(fs_info, "unable to find logical %llu length %llu",
                           logical, length);
+               WARN_ON(1);
                return ERR_PTR(-EINVAL);
        }