1 files changed, 4 insertions, 2 deletions

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 2f0e0f1090f6..869b98840fd0 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -790,15 +790,17 @@ static int __cpuinit do_boot_cpu(int apicid, int cpu)
 
         set_idle_for_cpu(cpu, c_idle.idle);
 do_rest:
-#ifdef CONFIG_X86_32
         per_cpu(current_task, cpu) = c_idle.idle;
+#ifdef CONFIG_X86_32
         init_gdt(cpu);
         /* Stack for startup_32 can be just as for start_secondary onwards */
         irq_ctx_init(cpu);
 #else
-        cpu_pda(cpu)->pcurrent = c_idle.idle;
         clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
         initial_gs = per_cpu_offset(cpu);
+        per_cpu(kernel_stack, cpu) =
+                (unsigned long)task_stack_page(c_idle.idle) -
+                KERNEL_STACK_OFFSET + THREAD_SIZE;
 #endif
         early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu);
         initial_code = (unsigned long)start_secondary;