this bug was introduced in revision c7027d120f0c. attached is a diff which prevents this crash in libdisk. any thoughts? On Tue, Sep 18, 2018 at 8:42 PM Nick Owens wrote: > > the following command will crash: > > disk/mkfs -a -o . > > with a null pointer dereference in libdisk, in the proto file parser. > > obviously it is wrong to pass a directory as a protofile to mkfs, but > it was an accident on my part.