1 files changed, 2 insertions, 1 deletions

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 541a7509faeb..5e64a9a29ea4 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -117,7 +117,8 @@ int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
         struct pt_regs regs;
 
         memset(&regs, 0, sizeof(regs));
-        regs.psw.mask = psw_kernel_bits | PSW_MASK_IO | PSW_MASK_EXT;
+        regs.psw.mask = psw_kernel_bits |
+                PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
         regs.psw.addr = (unsigned long) kernel_thread_starter | PSW_ADDR_AMODE;
         regs.gprs[9] = (unsigned long) fn;
         regs.gprs[10] = (unsigned long) arg;