On 2014-05-20 20:08, Cory Smelosky wrote: boo [1,54]rsx11m SYSTEM CRASH AT LOCATION 014402 REGISTERS R0=000002 R1=120550 R2=000000 R3=120546 R4=120744 R5=031610 SP=117772 PS=020010 SYSTEM STACK DUMP LOCATION CONTENTS 117772 000004 001344 That is a very weird and unexpected stack pointer. RSX normally have the stack in rather low addresses. Wonder if it's related to the tape controller that isn't actually technically present. I would not think so. If you have a device driver for something that there is no hardware for, the device should just become offline. Not sure exactly what you configured, but maybe something wrong in all your answers... :-) I'll grab the log when back at my desk. That could help. :-) After reboot: boo [1.54]rsx11m MCR -- Task not in system ins $boo boo [1,54]rsx11,\,\m [no output] I seem to be TERRIBLE and SYSGEN. Well, since the initial boot failed, any subsequent boots of that image I would expect to fail equally bad. It could have been unclean memory at some random address. This system also tends to randomly crash on first-time boots, too sometimes. A couple halts and it usually works then. What garbage that might be left in memory should not be a problem. Memory always have content... Johnny