btrfs_node_blockptr(eb, i),
size,
btrfs_node_ptr_generation(eb, i));
+ if (!next) {
+ fprintf(stderr, "failed to read %llu in tree %llu\n",
+ (unsigned long long)btrfs_node_blockptr(eb, i),
+ (unsigned long long)btrfs_header_owner(eb));
+ continue;
+ }
if (btrfs_is_leaf(next) &&
btrfs_header_level(eb) != 1)
BUG();