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-rw-r--r--kernel/hung_task.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 751593ed7c0b..32b479468e4d 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -44,6 +44,7 @@ int __read_mostly sysctl_hung_task_warnings = 10;
static int __read_mostly did_panic;
static bool hung_task_show_lock;
+static bool hung_task_call_panic;
static struct task_struct *watchdog_task;
@@ -127,10 +128,8 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout)
touch_nmi_watchdog();
if (sysctl_hung_task_panic) {
- if (hung_task_show_lock)
- debug_show_all_locks();
- trigger_all_cpu_backtrace();
- panic("hung_task: blocked tasks");
+ hung_task_show_lock = true;
+ hung_task_call_panic = true;
}
}
@@ -193,6 +192,10 @@ static void check_hung_uninterruptible_tasks(unsigned long timeout)
rcu_read_unlock();
if (hung_task_show_lock)
debug_show_all_locks();
+ if (hung_task_call_panic) {
+ trigger_all_cpu_backtrace();
+ panic("hung_task: blocked tasks");
+ }
}
static long hung_timeout_jiffies(unsigned long last_checked,