Hi all, I ran the latest blktests (git hash: 3f75e6241f6b) with v6.6 kernel, and obseved four failures below. They are all known for months. As for the two other failures observed with v6.6-rc1 kernel [1], they are no longer observed with v6.6 kernel. Good. [1] https://lore.kernel.org/linux-block/u4g3jh6dnowouthos3tdex2pflzo3hat55e5dc4j6pul3a3uov@y2axtbiura2q/ List of failures ================ #1: block/011 #2: nvme/003 (fabrics transport) #3: nvme/* (fc transport) #4: srp/002, 011 (rdma_rxe driver) Failure description =================== #1: block/011 The test case fails with NVME devices due to lockdep WARNING "possible circular locking dependency detected". Reported in Sep/2022 [2]. In LSF 2023, it was noted that this failure should be fixed. Also, it was found recently that this test case still causes failure of following tests. Fix work is ongoing [3]. [2] https://lore.kernel.org/linux-block/20220930001943.zdbvolc3gkekfmcv@shindev/ [3] https://github.com/kawasaki/blktests/commit/f540cbb0eeb66e2c76a88efbe65a2b59d55630fd #2: nvme/003 (fabrics transport) When nvme test group is run with trtype=rdma or tcp, the test case fails due to lockdep WARNING "possible circular locking dependency detected". Reported in May/2023. Fix discussions were held [4][5]. [4] https://lore.kernel.org/linux-nvme/20230511150321.103172-1-bvanassche@xxxxxxx/ [5] https://lore.kernel.org/linux-nvme/5cb63b10-72ab-4b7c-7574-48583ea8ffd1@xxxxxxxxxxx/ #3: nvme/* (fc transport) With trtype=fc configuration, test run on nvme test group hangs. Daniel is driving fix work. #4: srp/002, 011 (rdma_rxe driver) Test process hang is observed occasionally. Reported to the relevant mailing lists in Aug/2023 [6]. Blktests was modified to change default driver from rdma_rxe to siw to avoid impacts on blktests users. Root cause is not yet understood. Bob and Bart have spent time to chase it down (Thank you). [6] https://lore.kernel.org/linux-rdma/18a3ae8c-145b-4c7f-a8f5-67840feeb98c@xxxxxxx/T/#mee9882c2cfd0cfff33caa04e75418576f4c7a789
