Re: blktests failures with v6.11-rc1 kernel

On 8/2/24 14:39, Shinichiro Kawasaki wrote:

#3: nvme/052 (CKI failure)

   The CKI project reported that nvme/052 fails occasionally [4].
   This needs further debug effort.

  nvme/052 (tr=loop) (Test file-ns creation/deletion under one subsystem) [failed]
      runtime    ...  22.209s
      --- tests/nvme/052.out	2024-07-30 18:38:29.041716566 -0400
      +++ /mnt/tests/gitlab.com/redhat/centos-stream/tests/kernel/kernel-tests/-/archive/production/kernel-tests-production.zip/storage/blktests/nvme/nvme-loop/blktests/results/nodev_tr_loop/nvme/052.out.bad	2024-07-30 18:45:35.438067452 -0400
      @@ -1,2 +1,4 @@
       Running nvme/052
      +cat: /sys/block/nvme1n2/uuid: No such file or directory
      +cat: /sys/block/nvme1n2/uuid: No such file or directory
       Test complete

   [4] https://datawarehouse.cki-project.org/kcidb/tests/13669275

I just checked the console logs of the nvme/052 and from the logs it's 
apparent that all namespaces were created successfully and so it's strange
to see that the test couldn't access "/sys/block/nvme1n2/uuid". Do you know
if there's any chance of simultaneous blktests running on this machine?
 
On my test machine, I couldn't reproduce this issue on 6.11-rc1 kernel.

Thanks,
--Nilay