Commit cffb3e76 authored Feb 01, 2017 by Vijay Kumar Committed by David S. Miller Feb 23, 2017

sparc64: Set cpu state to offline when stopped



CPU needs to be marked offline before stopping it. When not marked
offline, the xcall receives HV_EWOULDBLOCK and so assumes that not all
CPUs received the message, and retries. After 10000 retries, it finally
fails with fatal mondo timeout.

Signed-off-by: Vijay Kumar <vijay.ac.kumar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent f41e5461

arch/sparc/kernel/smp_64.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1443,6 +1443,7 @@ void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)

		static void stop_this_cpu(void *dummy)
		{
		set_cpu_online(smp_processor_id(), false);
		prom_stopself();
		}

		@@ -1454,6 +1455,8 @@ void smp_send_stop(void)
		for_each_online_cpu(cpu) {
		if (cpu == smp_processor_id())
		continue;

		set_cpu_online(cpu, false);
		#ifdef CONFIG_SUN_LDOMS
		if (ldom_domaining_enabled) {
		unsigned long hv_err;