On Wed, Jul 20, 2022 at 10:25:17PM -0400, Waiman Long wrote: > 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 > The Linux version is 5.10. The upstream has indeed removed the BUG_ON, But in rt_mutex_adjust_prio_chain() it is still possible to have a thread is blocked by two locks. Can this situation be ignored without BUG_ON? Thanks.
