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j16sdiz 2 days ago

It is more than that.

This is what make remote debugging possible. It is impossible to do interactive remote debugging over a ultra low bandwidth link. If everything have static address and deterministic static, you can have a exact copy on ground and debug there.

coppsilgold 2 days ago | parent | next [-]

> If everything have static address and deterministic static, you can have a exact copy on ground and debug there.

You can also have deterministic dynamic - the satellite could transmit its dynamic state (a few bits signifying which memory cells failed) and then you proceed deterministically on the ground.

varjag 2 days ago | parent | prev [-]

Interactive debugging is apparently possible and was reportedly done on Deep Space One mission. One of developers involved frequents HN I believe.

unloader6118 2 days ago | parent [-]

Kind of. That took hours of not days.

A local exact replica with deterministic state save lots of time.