Greg Stark <gsstark@mit.edu> writes:
> Tom Lane <tgl@sss.pgh.pa.us> writes:
>> According to the previous port report from Red Hat, the PS2 chip simply
>> doesn't have any user-space TAS instruction, so you're pretty much stuck.
> Out of curiosity. If it lacks a tas instruction, is there really any smp
> implementation that runs on it?
My recollection is that it has TAS capability but the designers made it
a privileged instruction (in a fit of brain death :-()
> Why would postgres want spinlocks at all with only one processor?
Think harder... one processor != one process...
regards, tom lane