[PATCH blktests] nvme/071: test reservation preempt with multiple hosts

[Shin'ichiro Kawasaki]

On Oct 14, 2026 / 19:25, Shin'ichiro Kawasaki wrote:
> On Oct 02, 2026 / 16:08, Daejun Park wrote:
> > nvme/054 covers the reservation commands with a single host, so its
> > preempt step can only exercise a reservation holder preempting itself.
> > 
> > Add a test that connects three hosts to one namespace and sends the
> > Preempt and the Preempt and Abort actions of the Reservation Acquire
> > command from the reservation holder and from a non-holder registrant,
> > with PRKEY set to the key of another registrant, to the key of the
> > holder, and to 0h.  After each command the test checks the reservation
> > type and, for every registrant, its reservation key and whether it
> > holds the reservation, as reported by the Reservation Report command.
> > 
> > The steps in which the reservation holder preempts another registrant
> > or sends PRKEY 0h fail without the kernel patch "nvmet: fix preempt of
> > another registrant by the reservation holder".
> 
> Thanks for the patch. I ran the new test case and confirmed it fails. Also, I
> confirmed the kernel patch noted above avoids the failure. Good.
> 
> I think the patch is good enough to apply. Said that, I will wait for the kernel
> side fix patch lands on the Linus master branch to avoid confusion by the test
> case failure. I think the test case number 071 will need renumbering. I will do
> that modification when I apply the patch.

FYI, I applied the patch. Please note that I renumbered the test case to
nvme/076, and added a note about the kernel side commit. Thanks!