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7YIP2Jij420N1A9NDwvRXTGj7mnRdTvqPvzDzo3n3qJLBGMVEHjYyDRcUssIWCJf8R8WsBP49S2 EhuVB6nyo8ePqVLf0dHCdziu/lmqCz2+YIYEtcBWq7nEjRzUKc2slIz2t+4swF3FLe4fyNE8GAI lnBbIgOgbOZSz+BbFVVC84RxXRn15L3o1KwQq4iiG3uIWx1/5biKsMhLDxDO2rqpD1jQnOa38LO 5dMhGanGWlrqLGNavupZ0Cgexi5ohsTEWuO7bkOOnde2w8SmH/zkUkDjaHdAknKY+Nt2QN2q2hw w8dXxFqvPyHAOQen8AYv+BeHtrjt6Q4J4JmJug5PhCBG1mq8ADlZUresrFBQW33t6tua1P42xVr 9i+g3Guw16IyoFuKHlZPSSaXsmK5hYIZURW5Z/vw= X-Proofpoint-ORIG-GUID: 4E6DoJW_Bpr6ExDeEBVl5lGP-Ccfjl77 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260806_002537_586183_EEC90DE9 X-CRM114-Status: GOOD ( 26.14 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On 06/08/2026 04:31, Shin'ichiro Kawasaki wrote: > The test case nvme/068 fails depending on the system it runs on with the = failure > message below: nvme/068 (tr=3Drdma) (NVMe multipath delayed removal test)= [failed] > runtime ..=E2=80=8A. 11.=E2=80=8A357s --- tests/nvme/068.=E2=80=8Aout 202= 6-08-03 17:=E2=80=8A24:=E2=80=8A32.=E2=80=8A394566266 +0000 >=20 >=20 > The test case nvme/068 fails depending on the system it runs on with > the failure message below: >=20 > nvme/068 (tr=3Drdma) (NVMe multipath delayed removal test) [fail= ed] > runtime ... 11.357s > --- tests/nvme/068.out 2026-08-03 17:24:32.394566266 +0000 > +++ /home/runner/blktests/results/nodev_tr_rdma/nvme/068.out.bad= 2026-08-03 18:15:17.461243816 +0000 > @@ -1,3 +1,4 @@ > Running nvme/068 > pwrite: Input/output error > +module refcount not as original > Test complete >=20 > The test case checks the reference count of the nvme_core module. If the > count is not the expected value, it fails with the error message. > However, when the test system is slow, it takes some time until the > reference count gets updated. When the check is too early, the count > mismatch happens. To avoid the unexpected failure, repeat the reference > count check. >=20 > Signed-off-by: Shin'ichiro Kawasaki Reviewed-by: John Garry Just one comment/query below... > --- > I ran the test case nvme/068 with the patch using the kernel that does > not include the commit below: >=20 > 3f150f0f010f ("nvme-multipath: put module reference when delayed remo= val work is canceled") >=20 > And I observed the test case failed. When the kernel includes the commit, > the test case passes. This indicates the patch does not break the > reference count sanity check capability of the test case. >=20 > Changes from v1: > - Per review comments, handled empty "$refcnt" case and explicit 0 return >=20 > tests/nvme/068 | 16 ++++++++++++++-- > 1 file changed, 14 insertions(+), 2 deletions(-) >=20 > diff --git a/tests/nvme/068 b/tests/nvme/068 > index 4aee95b..cab57cd 100755 > --- a/tests/nvme/068 > +++ b/tests/nvme/068 > @@ -27,6 +27,19 @@ _delayed_nvme_reconnect_ctrl() { > _nvme_connect_subsys > } > =20 > +_check_nvme_core_ref_count() { > + local refcnt i > + > + for ((i =3D 0; i < 10; i++)); do > + refcnt=3D$(_module_use_count nvme_core) > + if [ "$refcnt" =3D=3D "" ] || [ "$refcnt" -eq "$refcnt_orig" ]; then I thought that refcnt_orig was local to test(), so I am unsure how it is=20 accessible in this function...but it seems to work. > + return 0 > + fi > + sleep 1 > + done > + return 1 > +} > + > test() { > echo "Running ${TEST_NAME}" > =20 > @@ -98,8 +111,7 @@ test() { > if ! _nvmf_wait_for_state "${def_subsysnqn}" "live" ; then > echo "subsystem did not return" > fi > - refcnt=3D$(_module_use_count nvme_core) > - if [ "$refcnt" !=3D "" ] && [ "$refcnt" -ne "$refcnt_orig" ]; then > + if ! _check_nvme_core_ref_count; then > echo "module refcount not as original" > fi > =20 > --=20 > 2.54.0 >=20