On Thu, 2022-03-03 at 22:04 +0100, Eric Farman wrote: > The routine smp_cpu_stopped() issues a SIGP SENSE, and returns true > if it received a CC1 (STATUS STORED) with the STOPPED or CHECK STOP > bits enabled. Otherwise, it returns false. > > This is misleading, because a CC2 (BUSY) merely indicates that the > order code could not be processed, not that the CPU is operating. > It could be operating but in the process of being stopped. > > Convert the invocation of the SIGP SENSE to retry when a CC2 is > received, so we get a more definitive answer. > > Signed-off-by: Eric Farman <farman@xxxxxxxxxxxxx> Reviewed-by: Nico Boehr <nrb@xxxxxxxxxxxxx>
