1 files changed, 1 insertions, 0 deletions

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 1f9399191794..78c8e5548caf 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -142,6 +142,7 @@ static void default_idle(void)
                 return;
         }
 
+        trace_hardirqs_on();
         /* Wait for external, I/O or machine check interrupt. */
         __load_psw_mask(PSW_KERNEL_BITS | PSW_MASK_WAIT |
                         PSW_MASK_IO | PSW_MASK_EXT);