subject:"\[PATCH v2 2\/2\] locktorture\: call percpu_free_rwsem\(\) to do percpu\-rwsem cleanup"

Re: [PATCH v2 2/2] locktorture: call percpu_free_rwsem() to do percpu-rwsem cleanup

2020-09-25 Thread Paul E. McKenney

On Thu, Sep 24, 2020 at 10:18:54PM +0800, Hou Tao wrote: > When do percpu-rwsem writer lock torture, the RCU callback > rcu_sync_func() may still be pending after locktorture module > is removed, and it will lead to the following Oops: > > BUG: unable to handle page fault for address:

[PATCH v2 2/2] locktorture: call percpu_free_rwsem() to do percpu-rwsem cleanup

2020-09-24 Thread Hou Tao

When do percpu-rwsem writer lock torture, the RCU callback rcu_sync_func() may still be pending after locktorture module is removed, and it will lead to the following Oops: BUG: unable to handle page fault for address: c00eb920 #PF: supervisor read access in kernel mode #PF: