--- zzzz-none-000/linux-3.10.107/arch/mips/kernel/cevt-r4k.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/kernel/cevt-r4k.c	2021-11-10 11:53:54.000000000 +0000
@@ -45,7 +45,7 @@
 }
 
 DEFINE_PER_CPU(struct clock_event_device, mips_clockevent_device);
-int cp0_timer_irq_installed;
+DEFINE_PER_CPU(int, cp0_timer_irq_installed);
 
 #ifndef CONFIG_MIPS_MT_SMTC
 irqreturn_t c0_compare_interrupt(int irq, void *dev_id)
@@ -195,8 +195,8 @@
 	cd = &per_cpu(mips_clockevent_device, cpu);
 
 	cd->name		= "MIPS";
-	cd->features		= CLOCK_EVT_FEAT_ONESHOT;
-
+    cd->features		= CLOCK_EVT_FEAT_ONESHOT;
+				  
 	clockevent_set_clock(cd, mips_hpt_frequency);
 
 	/* Calculate the min / max delta */
@@ -215,10 +215,10 @@
 #endif
 	clockevents_register_device(cd);
 
-	if (cp0_timer_irq_installed)
+	if (per_cpu(cp0_timer_irq_installed, cpu))
 		return 0;
 
-	cp0_timer_irq_installed = 1;
+	per_cpu(cp0_timer_irq_installed,cpu) = 1;
 
 	setup_irq(irq, &c0_compare_irqaction);