On 7/20/22 03:28, yuxin.ye wrote:> before rt_mutex_adjust_prio_chain(),unlock lock->wait_lock will cause> BUG_ON at kernel/locking/rtmutex.c:1331:The current upstream kernel/locking/rtmutex.c has no BUG_ON() call. Which version of the kernel are you using?Cheers,Longman