aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--drivers/misc/lkdtm.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 31a991161f0a..5bfb2a2041b8 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;

Privacy Policy