diff options
| author | Prasad Sodagudi <psodagud@codeaurora.org> | 2015-04-11 06:06:26 +0530 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:16:32 -0700 |
| commit | 805c18d71c615b62bb9e7b86afed8ce1f4273973 (patch) | |
| tree | 6407384cedd16bb27064a7b3b77eaf9481b6b3c1 /kernel/locking/spinlock_debug.c | |
| parent | 77d758e28363b63c9273099fc49b901def518b96 (diff) | |
lib: spinlock: Trigger a watchdog bite on spin_dump for rwlock
Currently dump_stack is printed once a spin_bug is detected for rwlock.
So provide an options to trigger a panic or watchdog bite for debugging
rwlock magic corruptions and lockups.
Change-Id: I20807e8eceb8b81635e58701d1f9f9bd36ab5877
[abhimany: replace msm with qcom]
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>
Signed-off-by: Abhimanyu Kapur <abhimany@codeaurora.org>
Diffstat (limited to 'kernel/locking/spinlock_debug.c')
| -rw-r--r-- | kernel/locking/spinlock_debug.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/kernel/locking/spinlock_debug.c b/kernel/locking/spinlock_debug.c index e99d8603de14..d381f559e0ce 100644 --- a/kernel/locking/spinlock_debug.c +++ b/kernel/locking/spinlock_debug.c @@ -174,6 +174,11 @@ static void rwlock_bug(rwlock_t *lock, const char *msg) printk(KERN_EMERG "BUG: rwlock %s on CPU#%d, %s/%d, %p\n", msg, raw_smp_processor_id(), current->comm, task_pid_nr(current), lock); +#ifdef CONFIG_DEBUG_SPINLOCK_BITE_ON_BUG + msm_trigger_wdog_bite(); +#elif defined(CONFIG_DEBUG_SPINLOCK_PANIC_ON_BUG) + BUG(); +#endif dump_stack(); } |