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From: Shinichiro Kawasaki <>
To: "" <>,
	"" <>,
	"" <>
Subject: blktests failures with v6.7 kernel
Date: Fri, 12 Jan 2024 00:30:54 +0000	[thread overview]
Message-ID: <74ytefsd7byav2bs5q3lr4yj7v3yfmbe4bvwo233bri7ufl7xe@btts3u37s4op> (raw)
In-Reply-To: <gaz42xjzjsf2w4zj5sory23wpoym4wuz7y4lz2wxwx2eum5jl4@4s64tt635abf>

I resend this note since the subject was wrong. This is the report not for the
kernel v6.7-rc1, but for v6.7. Sorry for the noise.


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.


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.


   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.


#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.


      reply	other threads:[~2024-01-12  0:31 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-11  6:27 blktests failures with v6.7-rc1 kernel Shinichiro Kawasaki
2024-01-12  0:30 ` Shinichiro Kawasaki [this message]

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