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f8501ba77d
According to the architecture a cpu must not necessarily enter stopped state after completion of a sigp instruction with "stop" order code. So remove the BUG() statement after self sending sigp stop to avoid that it ever gets reached. Also add a sigp busy check to make sure that the order gets delivered. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>