[bug report] rdma_rxe doesn't work with blktests on 5.14.0-rc6

Tue Aug 17 23:42:05 PDT 2021

On Wed, Aug 18, 2021 at 1:30 PM Zhu Yanjun <zyjzyj2000 at gmail.com> wrote:
>
> On Wed, Aug 18, 2021 at 1:09 PM Zhu Yanjun <zyjzyj2000 at gmail.com> wrote:
> >
> > On Wed, Aug 18, 2021 at 12:57 PM Yi Zhang <yi.zhang at redhat.com> wrote:
> > >
> > > Hello
> > >
> > > I found rdma_rxe doesn't work with blktests on the latest upstream, is
> > > it a known issue, feel free to let me know if you need any info/test
> > > for it, thanks.
> > >
> > > # nvme_trtype=rdma ./check nvme/008
> > > nvme/008 (create an NVMeOF host with a block device-backed ns) [failed]
> > >     runtime  0.323s  ...  0.329s
> > >     --- tests/nvme/008.out 2021-08-18 00:18:35.380345954 -0400
> > >     +++ /root/blktests/results/nodev/nvme/008.out.bad 2021-08-18
> > > 00:35:11.126723074 -0400
> > >     @@ -1,5 +1,7 @@
> > >      Running nvme/008
> > >     -91fdba0d-f87b-4c25-b80f-db7be1418b9e
> > >     -uuid.91fdba0d-f87b-4c25-b80f-db7be1418b9e
> > >     -NQN:blktests-subsystem-1 disconnected 1 controller(s)
> > >     +Failed to write to /dev/nvme-fabrics: Cannot allocate memory
> > >     +cat: '/sys/class/nvme/nvme*/subsysnqn': No such file or directory
> > >     +cat: /sys/block/n1/uuid: No such file or directory
> > >     ...
> > >     (Run 'diff -u tests/nvme/008.out
> > > /root/blktests/results/nodev/nvme/008.out.bad' to see the entire diff)
> > >
> > >
> > > [  981.382774] run blktests nvme/008 at 2021-08-18 00:33:21
> > > [  981.470796] rdma_rxe: loaded
> > > [  981.474338] infiniband eno1_rxe: set active
> > > [  981.474340] infiniband eno1_rxe: added eno1
> > > [  981.476737] eno2 speed is unknown, defaulting to 1000
> > > [  981.481803] eno2 speed is unknown, defaulting to 1000
> > > [  981.486865] eno2 speed is unknown, defaulting to 1000
> > > [  981.492862] infiniband eno2_rxe: set down
> > > [  981.492864] infiniband eno2_rxe: added eno2
> > > [  981.492904] eno2 speed is unknown, defaulting to 1000
> > > [  981.497957] eno2 speed is unknown, defaulting to 1000
> > > [  981.504338] eno2 speed is unknown, defaulting to 1000
> > > [  981.510442] eno3 speed is unknown, defaulting to 1000
> > > [  981.515509] eno3 speed is unknown, defaulting to 1000
> > > [  981.520580] eno3 speed is unknown, defaulting to 1000
> > > [  981.526600] infiniband eno3_rxe: set down
> > > [  981.526601] infiniband eno3_rxe: added eno3
> > > [  981.526640] eno3 speed is unknown, defaulting to 1000
> > > [  981.531693] eno3 speed is unknown, defaulting to 1000
> > > [  981.538052] eno2 speed is unknown, defaulting to 1000
> > > [  981.543115] eno3 speed is unknown, defaulting to 1000
> > > [  981.549088] eno4 speed is unknown, defaulting to 1000
> > > [  981.554149] eno4 speed is unknown, defaulting to 1000
> > > [  981.559211] eno4 speed is unknown, defaulting to 1000
> > > [  981.565201] infiniband eno4_rxe: set down
> > > [  981.565203] infiniband eno4_rxe: added eno4
> > > [  981.565242] eno4 speed is unknown, defaulting to 1000
> > > [  981.570306] eno4 speed is unknown, defaulting to 1000
> > > [  981.576724] eno2 speed is unknown, defaulting to 1000
> > > [  981.581785] eno3 speed is unknown, defaulting to 1000
> > > [  981.586848] eno4 speed is unknown, defaulting to 1000
> > > [  981.599312] loop0: detected capacity change from 0 to 2097152
> > > [  981.612261] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
> > > [  981.614215] nvmet_rdma: enabling port 0 (10.16.221.116:4420)
> > > [  981.622586] nvmet: creating controller 1 for subsystem
> > > blktests-subsystem-1 for NQN
> > > nqn.2014-08.org.nvmexpress:uuid:4c4c4544-0035-4b10-8044-b9c04f463333.
> > > [  981.622830] nvme nvme0: creating 32 I/O queues.
> > > [  981.634860] nvme nvme0: failed to initialize MR pool sized 128 for
> > > QID 32         ----------------------- failed here
> >
> > Recently a lot of commits are merged into linux upstream, can you let
> > us know the kernel version
> > on which this problem occurs?
>
> I mean, the earliest kernel version on which this problem occurs.

It should be 5.14.-rc5, and from 5.14.0-0.rc4, the tests failed with
another failure log as below, and 5.13 doesn't have these issues.

[  196.022199] run blktests nvme/008 at 2021-08-18 02:06:48
[  196.107611] TECH PREVIEW: Soft-RoCE Transport Driver may not be
fully supported.
               Please review provided documentation for limitations.
[  196.121123] rdma_rxe: loaded
[  196.127604] infiniband eno1_rxe: set active
[  196.127606] infiniband eno1_rxe: added eno1
[  196.130061] eno2 speed is unknown, defaulting to 1000
[  196.135131] eno2 speed is unknown, defaulting to 1000
[  196.140197] eno2 speed is unknown, defaulting to 1000
[  196.146175] infiniband eno2_rxe: set down
[  196.146176] infiniband eno2_rxe: added eno2
[  196.146225] eno2 speed is unknown, defaulting to 1000
[  196.151338] Loading iSCSI transport class v2.0-870.
[  196.152607] eno2 speed is unknown, defaulting to 1000
[  196.158580] eno3 speed is unknown, defaulting to 1000
[  196.163661] eno3 speed is unknown, defaulting to 1000
[  196.168724] eno3 speed is unknown, defaulting to 1000
[  196.168783] iscsi: registered transport (iser)
[  196.174702] infiniband eno3_rxe: set down
[  196.174703] infiniband eno3_rxe: added eno3
[  196.174744] eno3 speed is unknown, defaulting to 1000
[  196.180953] eno2 speed is unknown, defaulting to 1000
[  196.186033] eno3 speed is unknown, defaulting to 1000
[  196.191511] Rounding down aligned max_sectors from 4294967295 to 4294967288
[  196.191546] db_root: cannot open: /etc/target
[  196.192018] eno4 speed is unknown, defaulting to 1000
[  196.200971] eno4 speed is unknown, defaulting to 1000
[  196.206033] eno4 speed is unknown, defaulting to 1000
[  196.212008] infiniband eno4_rxe: set down
[  196.212010] infiniband eno4_rxe: added eno4
[  196.212050] eno4 speed is unknown, defaulting to 1000
[  196.218428] eno2 speed is unknown, defaulting to 1000
[  196.223494] eno3 speed is unknown, defaulting to 1000
[  196.228562] eno4 speed is unknown, defaulting to 1000
[  196.240599] eno2 speed is unknown, defaulting to 1000
[  196.245656] eno3 speed is unknown, defaulting to 1000
[  196.250719] eno4 speed is unknown, defaulting to 1000
[  196.255853] loop: module loaded
[  196.272763] RPC: Registered rdma transport module.
[  196.272765] RPC: Registered rdma backchannel transport module.
[  196.277249] loop0: detected capacity change from 0 to 2097152
[  196.286992] nvmet: adding nsid 1 to subsystem blktests-subsystem-1
[  196.289632] nvmet_rdma: enabling port 0 (10.16.221.116:4420)
[  196.299378] nvmet_rdma: post_recv cmd failed
[  196.303666] nvmet_rdma: nvmet_rdma_alloc_queue: creating RDMA queue
failed (-22).
[  196.325813] rdma_rxe: invalid mask or state for qp
[  196.330608] nvme nvme0: Connect rejected: status 28 (consumer
defined) nvme status 6 (resource not found).
[  196.340259] nvme nvme0: rdma connection establishment failed (-104)
[  196.450004] eno2 speed is unknown, defaulting to 1000
[  196.455067] eno3 speed is unknown, defaulting to 1000
[  196.460132] eno4 speed is unknown, defaulting to 1000
[  196.475683] rdma_rxe: unloaded