On Thu, Jan 24, 2019 at 05:02:41PM +0800, Yanjun Zhu wrote: > > On 2019/1/23 23:49, Jason Gunthorpe wrote: > > On Wed, Jan 23, 2019 at 04:55:01PM +0800, Yanjun Zhu wrote: > > > > > This mad_queue is sent to IB device. And IB_WC_WR_FLUSH_ERR is also sent to > > > IB device. > > > > > > So it is very possible that mad_queue is set to NULL in IB device. > > No it isn't. > > You are so sure about it. :-( > > Can you explain whyIB device does not make mad_queue NULL in details?;-) Hardware does not randomly scribble over kernel memory. Jason
