Hi all, I ran the latest blktests (git hash: a20c4de2306e) with the v6.7 kernel. I observed four failures below, which have been known for months. As for the two other failures observed with the v6.7-rc1 kernel [1], they are no longer observed with the v6.7 kernel and the latest blktests. Good. [1] https://lore.kernel.org/linux-block/ytcn437kppvuj6pwokthrh45asmupbbmbp5ybf56yipo4tukv2@g3qau7lqoooj/ 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. A RFC fix patch was posted recently [3]. It still needs more discussion to be fixed. [2] https://lore.kernel.org/linux-block/20220930001943.zdbvolc3gkekfmcv@shindev/ [3] https://lore.kernel.org/linux-nvme/20231213051704.783490-1-shinichiro.kawasaki@xxxxxxx/ This test case caused the following test cases to fail occasionally. A recent blktests commit 1e6721b87d5e ("block/011: recover test target devices to online or live status") fixed it. #2: nvme/003 (fabrics transport) When the 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. Hannes provided a kernel fix patch [4] (thanks!). It is expected to be upstreamed with kernel v6.8-rc1. [4] https://lore.kernel.org/linux-nvme/20231208125321.165819-1-hare@xxxxxxxxxx/ #3: nvme/* (fc transport) With the trtype=fc configuration, tests run on the nvme test group hang. 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 [5]. Blktests was modified to change the default driver from rdma_rxe to siw to avoid impacts on blktests users. The root cause is not yet understood. [5] https://lore.kernel.org/linux-rdma/18a3ae8c-145b-4c7f-a8f5-67840feeb98c@xxxxxxx/T/#mee9882c2cfd0cfff33caa04e75418576f4c7a789
