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-rw-r--r--volumes.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/volumes.c b/volumes.c
index 388c94e1..009ce785 100644
--- a/volumes.c
+++ b/volumes.c
@@ -1136,8 +1136,20 @@ int btrfs_num_copies(struct btrfs_mapping_tree *map_tree, u64 logical, u64 len)
int ret;
ce = search_cache_extent(&map_tree->cache_tree, logical);
- BUG_ON(!ce);
- BUG_ON(ce->start > logical || ce->start + ce->size < logical);
+ if (!ce) {
+ fprintf(stderr, "No mapping for %llu-%llu\n",
+ (unsigned long long)logical,
+ (unsigned long long)logical+len);
+ return 1;
+ }
+ if (ce->start > logical || ce->start + ce->size < logical) {
+ fprintf(stderr, "Invalid mapping for %llu-%llu, got "
+ "%llu-%llu\n", (unsigned long long)logical,
+ (unsigned long long)logical+len,
+ (unsigned long long)ce->start,
+ (unsigned long long)ce->start + ce->size);
+ return 1;
+ }
map = container_of(ce, struct map_lookup, ce);
if (map->type & (BTRFS_BLOCK_GROUP_DUP | BTRFS_BLOCK_GROUP_RAID1))