On 04/30, Peter Zijlstra wrote: > > On Tue, Apr 30, 2019 at 04:42:53PM +0200, Oleg Nesterov wrote: > > I have cloned linux-rt-devel.git > > > > If I understand correctly, in rt rw_semaphore is actually defined in rwsem_rt.h > > so percpu_rwsem_acquire() should probably do > > > > sem->rw_sem.rtmutex.owner = current; > > That'll screw the PI chain (if there is one), right? Yes, I have already realized this can't work after I glanced at this code, thanks. Oleg.