On Tue, Nov 05, 2024 at 05:58:03PM +1100, Dave Chinner wrote: > When the two conflict, _scratch_mkfs drops the global MKFS_OPTIONS > and uses only the local parameters so the filesystem is set up with > the configuration the test expects. > > In this case, MKFS_OPTIONS="-m rmapbt=1" which conflicts with the > local RTDEV/USE_EXTERNAL test setup. Because the test icurrently > overloads the global MKFS_OPTIONS with local test options, the local > test parameters are dropped along with the global paramters when > there is a conflict. Hence the mkfs_scratch call fails to set the > filesystem up the way the test expects. But the rmapbt can be default on, in which case it does not get removed. And then without the _sized we'll run into the problem that Hans' patches fixed once again.