Oh the issue is is that add_internal_bitmap1 computes the chunksize to be 1LL<<32 but it is stored as a int32 and so is truncated to 0. Now obviously devices this large are pretty implausible, but this failure mode is unfortunate!
Oh the issue is is that add_internal_ bitmap1 computes the chunksize to be 1LL<<32 but it is stored as a int32 and so is truncated to 0. Now obviously devices this large are pretty implausible, but this failure mode is unfortunate!