1 files changed, 3 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 5d90ee9aebf1..8aca4b1dc04e 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -168,6 +168,9 @@ void __init smp_callin(void)
                 rmb();
 
         cpu_set(cpuid, cpu_online_map);
+
+        /* idle thread is expected to have preempt disabled */
+        preempt_disable();
 }
 
 void cpu_panic(void)