The following patch fixes a bug where reiserfsck will crash if OIDs up around the maximum are in use. The problem is that INDEX_COUNT ends up rounding down and the last chunk isn't allocated, causing a segfault.
diff -rup reiserfsprogs-3.6.19/fsck/uobjectid.c reiserfsprogs-3.6.19.devel/fsck/uobjectid.c --- reiserfsprogs-3.6.19/fsck/uobjectid.c 2004-06-17 15:57:39.000000000 -0400 +++ reiserfsprogs-3.6.19.devel/fsck/uobjectid.c 2006-04-20 15:18:26.000000000 -0400 @@ -15,7 +15,7 @@ /* 2 bytes for the counter */ #define BM_SIZE (ALLOC_SIZE - sizeof(__u16)) #define BM_INTERVAL (BM_SIZE * 8) -#define INDEX_COUNT (MAX_ID / BM_INTERVAL) +#define INDEX_COUNT ((MAX_ID / BM_INTERVAL) + 1) #define id_map_interval(map, id) (map->index + (id / BM_INTERVAL))
