1 files changed, 20 insertions, 0 deletions

diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 31a991161f0..5bfb2a2041b 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -75,6 +75,9 @@ enum ctype {
         UNALIGNED_LOAD_STORE_WRITE,
         OVERWRITE_ALLOCATION,
         WRITE_AFTER_FREE,
+        SOFTLOCKUP,
+        HARDLOCKUP,
+        HUNG_TASK,
 };
 
 static char* cp_name[] = {
@@ -99,6 +102,9 @@ static char* cp_type[] = {
         "UNALIGNED_LOAD_STORE_WRITE",
         "OVERWRITE_ALLOCATION",
         "WRITE_AFTER_FREE",
+        "SOFTLOCKUP",
+        "HARDLOCKUP",
+        "HUNG_TASK",
 };
 
 static struct jprobe lkdtm;
@@ -320,6 +326,20 @@ static void lkdtm_do_action(enum ctype which)
                 memset(data, 0x78, len);
                 break;
         }
+        case SOFTLOCKUP:
+                preempt_disable();
+                for (;;)
+                        cpu_relax();
+                break;
+        case HARDLOCKUP:
+                local_irq_disable();
+                for (;;)
+                        cpu_relax();
+                break;
+        case HUNG_TASK:
+                set_current_state(TASK_UNINTERRUPTIBLE);
+                schedule();
+                break;
         case NONE:
         default:
                 break;