Just booted a -current/amd64 with options KGDB # remote debugger options KGDB_DEVNAME="\"com\"",KGDB_DEVADDR=0x3f8,KGDB_DEVRATE=115200 and "boot -d". It seems the "-d" doesn't happen - successful boot without dropping into the debugger... Is kgdb known to be working? Cheers, Patrick