1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index d16a2fae270..a28756ef7ce 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -776,7 +776,7 @@ static int __cpuinit do_boot_cpu(int cpu, int apicid)
 
         if (c_idle.idle) {
                 c_idle.idle->thread.rsp = (unsigned long) (((struct pt_regs *)
-                        (THREAD_SIZE + (unsigned long) c_idle.idle->thread_info)) - 1);
+                        (THREAD_SIZE +  task_stack_page(c_idle.idle))) - 1);
                 init_idle(c_idle.idle, cpu);
                 goto do_rest;
         }