Hi there
I wonder that the command 'm5 checkpoint' does not work for a Alpha
Ruby full system simulation!
After I boot up a RUBY model ALPHA full system successfully, I use the
command 'm5 checkpoint' in the sell of the simulated system, I encounter a
RUNTIME ERROR below and the simulation fails.
Runtime Error at MESI_CMP_directory-L1cache.sm:221, Ruby Time: 23014921238:
Invalid RubyRequestType, PID...
I check the .sm file above and I found the function below:
Event mandatory_request_type_to_event(RubyRequestType type) {
if (type == RubyRequestType:LD) {
return Event:Load;
} else if (type == RubyRequestType:IFETCH) {
return Event:Ifetch;
} else if ((type == RubyRequestType:ST) || (type ==
RubyRequestType:ATOMIC)) {
return Event:Store;
} else {
error("Invalid RubyRequestType"); ***** HERE is the LINE 221
********
}
}
I guess this is because CPU send wrong type RubyRequest messages to L1
caches when we run RUBY model checkpointing.
I also tried fs.py (non-Ruby) and the 'm5 checkpoint' works well. Does
it mean we can not take checkpoint with the ruby model full system?
_______________________________________________
gem5-dev mailing list
[email protected]
http://m5sim.org/mailman/listinfo/gem5-dev
