diff --git a/src/extfsclone.c b/src/extfsclone.c
index cf4a149b..7951d617 100644
--- a/src/extfsclone.c
+++ b/src/extfsclone.c
@@ -181,9 +181,9 @@ void read_bitmap(char* device, file_system_info fs_info, unsigned long* bitmap,
     /// check all free blocks in partition
     if (free != fs->super->s_free_blocks_count) {
 	if ((fs->super->s_feature_ro_compat & EXT4_FEATURE_RO_COMPAT_GDT_CSUM) && (ext4_gfree_mismatch))
-	    log_mesg(1, 0, 0, fs_opt.debug, "%s: EXT4 bitmap metadata mismatch\n", __FILE__);
+	    log_mesg(1, 0, 0, fs_opt.debug, "%s: EXT4 bitmap metadata mismatch (%llu vs %lu)\n", __FILE__, free, fs->super->s_free_blocks_count);
 	else
-	    log_mesg(0, 1, 1, fs_opt.debug, "%s: bitmap free count err, free:%llu\n", __FILE__, free);
+	    log_mesg(0, 1, 1, fs_opt.debug, "%s: bitmap free count err, free:%llu, expected:%lu\n", __FILE__, free, fs->super->s_free_blocks_count);
     }
 
     fs_close();
diff --git a/src/main.c b/src/main.c
index 903309d3..fc92a68e 100644
--- a/src/main.c
+++ b/src/main.c
@@ -508,7 +508,7 @@ int main(int argc, char **argv) {
 	} else if (opt.chkimg && img_opt.checksum_mode == CSM_NONE
 		&& strcmp(opt.source, "-") != 0) {
 
-		unsigned long long total_offset = (fs_info.usedblocks - 1) * fs_info.block_size;
+		unsigned long long total_offset = (fs_info.used_bitmap - 1) * fs_info.block_size;
 		char last_block[fs_info.block_size];
 		off_t partial_offset = INT32_MAX;
 
diff --git a/src/partclone.c b/src/partclone.c
index ca5f9886..a7ac173d 100644
--- a/src/partclone.c
+++ b/src/partclone.c
@@ -1603,6 +1603,7 @@ void print_file_system_info(file_system_info fs_info, cmd_opt opt) {
 	unsigned int     block_s = fs_info.block_size;
 	unsigned long long total = fs_info.totalblock;
 	unsigned long long used  = fs_info.usedblocks;
+	unsigned long long mapped = fs_info.used_bitmap;
 	int debug = opt.debug;
 	char size_str[11];
 
@@ -1617,6 +1618,9 @@ void print_file_system_info(file_system_info fs_info, cmd_opt opt) {
 	print_readable_size_str(used*block_s, size_str);
 	log_mesg(0, 0, 1, debug, _("Space in use: %s = %llu Blocks\n"), size_str, used);
 
+	print_readable_size_str(mapped*block_s, size_str);
+	log_mesg(1, 0, 1, debug, _("Mapped space: %s = %llu Blocks\n"), size_str, mapped);
+
 	print_readable_size_str((total-used)*block_s, size_str);
 	log_mesg(0, 0, 1, debug, _("Free Space:   %s = %llu Blocks\n"), size_str, (total-used));