When running debugfs on a filesystem formatted with flex_bg, it prints out the relative offsets for the bitmaps and inode table badly on 64-bit systems, because the offset is computed as a large positive number instead of being a negative numer (which will not be printed at all): Group 1: (Blocks 0x8000-0xffff) [INODE_UNINIT, ITABLE_ZEROED] Block bitmap at 0x0102 (+4294934786), Inode bitmap at 0x0202 (+4294935042) Inode table at 0x037e-0x03fa (+4294935422) The attached patch prints out the relative offsets for flex_bg groups as the offset within the reported group. This makes it more clear where the metadata is located, rather than simply printing some large negative number. Group 1: (Blocks 0x8000-0xffff) [INODE_UNINIT, ITABLE_ZEROED] Block bitmap at 0x0102 (group 0 +258), Inode bitmap at 0x0202 (group 0 +514) Inode table at 0x037e-0x03fa (group 0 +894) Signed-off-by: Andreas Dilger <adilger@xxxxxxxxx> -- Cheers, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html