On Fri, Dec 01, 2017 at 04:49:31PM -0200, Mauricio Faria de Oliveira wrote: > Hi Bart, > > On 12/01/2017 02:08 PM, Bart Van Assche wrote: > > The test chenxiang ran does not prove that there is anything wrong with v2. > > Maybe chenxiang hit the issue described > > inhttps://lkml.org/lkml/2017/9/5/381? > > Unfortunately v2 has been found to exhibit another problem, an Oops in > the systemd shutdown path for device-mapper LVM volumes at least, when > calling 'q->request_fn(q)' if 'q->request_fn' is NULL.
That issue can be fixed easily in V2 and we understand DM's case clearly. But the most important thing is that V2 can't fix Chenxiang's issue, but V3/V1 can. -- Ming
