It looks like there are at least two xfstests failures if the largedir feature is enabled. generic/021 fails, but I think this may be a test issue because it seems to be a mke2fs complaining about not having enough space to create the file system. generic/027, which is an ENOSPC hitter, is failing with largedir enabled, but apparently it hasn't been failing w/o this feature being enabled. The test description is "Run 8 processes writing 1k files to seperate files in seperate dirs to hit ENOSPC on small fs with little free space. Loop for 100 iterations." This was using the following configuration: export EXT_MKFS_OPTIONS="-I 2048 -O ^64bit,mmp,uninit_bg,^extents,large_dir,dir_nlink,quota,huge_file,flex_bg -E lazy_journal_init" - Ted
