netdev - kselftest: net: tls: hangs

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Date:   Fri, 25 Mar 2022 13:10:22 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     "open list:KERNEL SELFTEST FRAMEWORK" 
        <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Netdev <netdev@...r.kernel.org>, lkft-triage@...ts.linaro.org
Cc:     Shuah Khan <shuah@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
Subject: kselftest: net: tls: hangs

While running kselftest net tls test case on Linux next and mainline kernels
the test case fails at following sub test cases and hangs every time.
Please investigate this hang issue.

kconfigs are generated from kselftest-merge config.

metadata:
  git_ref: master
  git_repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git_sha: b61581ae229d8eb9f21f8753be3f4011f7692384
  git_describe: next-20220323
  kernel_version: 5.17.0
  kernel-config: https://builds.tuxbuild.com/26mKij4yB5Q6WUpOyHHEoHLstVJ/config

Test log link,
--------------
# selftests: net: tls
# TAP version 13
# 1..502
# # Starting 502 tests from 14 test cases.
# #  RUN           global.non_established ...
# #            OK  global.non_established
# ok 1 global.non_established
# #  RUN           global.keysizes ...
# #            OK  global.keysizes
<trim>

# #  RUN           tls.12_aes_gcm.splice_cmsg_to_pipe ...
# # tls.c:688:splice_cmsg_to_pipe:Expected splice(self->cfd, NULL,
p[1], NULL, send_len, 0) (10) == -1 (-1)
# # tls.c:689:splice_cmsg_to_pipe:Expected errno (2) == EINVAL (22)
# # splice_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.12_aes_gcm.splice_cmsg_to_pipe
# not ok 21 tls.12_aes_gcm.splice_cmsg_to_pipe
# #  RUN           tls.12_aes_gcm.splice_dec_cmsg_to_pipe ...
# # tls.c:708:splice_dec_cmsg_to_pipe:Expected recv(self->cfd, buf,
send_len, 0) (10) == -1 (-1)
# # tls.c:709:splice_dec_cmsg_to_pipe:Expected errno (2) == EIO (5)
# # splice_dec_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.12_aes_gcm.splice_dec_cmsg_to_pipe
# not ok 22 tls.12_aes_gcm.splice_dec_cmsg_to_pipe
# #  RUN           tls.12_aes_gcm.recv_and_splice ...
# #            OK  tls.12_aes_gcm.recv_and_splice

<trim>

# #  RUN           tls.13_aes_gcm.splice_cmsg_to_pipe ...
# # tls.c:688:splice_cmsg_to_pipe:Expected splice(self->cfd, NULL,
p[1], NULL, send_len, 0) (10) == -1 (-1)
# # tls.c:689:splice_cmsg_to_pipe:Expected errno (2) == EINVAL (22)
# # splice_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.13_aes_gcm.splice_cmsg_to_pipe
# not ok 70 tls.13_aes_gcm.splice_cmsg_to_pipe
# #  RUN           tls.13_aes_gcm.splice_dec_cmsg_to_pipe ...
# # tls.c:708:splice_dec_cmsg_to_pipe:Expected recv(self->cfd, buf,
send_len, 0) (10) == -1 (-1)
# # tls.c:709:splice_dec_cmsg_to_pipe:Expected errno (2) == EIO (5)
# # splice_dec_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.13_aes_gcm.splice_dec_cmsg_to_pipe
# not ok 71 tls.13_aes_gcm.splice_dec_cmsg_to_pipe


<trim>

# #  RUN           tls.12_chacha.splice_cmsg_to_pipe ...
# # tls.c:688:splice_cmsg_to_pipe:Expected splice(self->cfd, NULL,
p[1], NULL, send_len, 0) (10) == -1 (-1)
# # tls.c:689:splice_cmsg_to_pipe:Expected errno (2) == EINVAL (22)
# # splice_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.12_chacha.splice_cmsg_to_pipe
# not ok 119 tls.12_chacha.splice_cmsg_to_pipe
# #  RUN           tls.12_chacha.splice_dec_cmsg_to_pipe ...
# # tls.c:708:splice_dec_cmsg_to_pipe:Expected recv(self->cfd, buf,
send_len, 0) (10) == -1 (-1)
# # tls.c:709:splice_dec_cmsg_to_pipe:Expected errno (2) == EIO (5)
# # splice_dec_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.12_chacha.splice_dec_cmsg_to_pipe
# not ok 120 tls.12_chacha.splice_dec_cmsg_to_pipe

<trim>

# #  RUN           tls.13_chacha.splice_cmsg_to_pipe ...
# # tls.c:688:splice_cmsg_to_pipe:Expected splice(self->cfd, NULL,
p[1], NULL, send_len, 0) (10) == -1 (-1)
# # tls.c:689:splice_cmsg_to_pipe:Expected errno (2) == EINVAL (22)
# # splice_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.13_chacha.splice_cmsg_to_pipe
# not ok 168 tls.13_chacha.splice_cmsg_to_pipe
# #  RUN           tls.13_chacha.splice_dec_cmsg_to_pipe ...
# # tls.c:708:splice_dec_cmsg_to_pipe:Expected recv(self->cfd, buf,
send_len, 0) (10) == -1 (-1)
# # tls.c:709:splice_dec_cmsg_to_pipe:Expected errno (2) == EIO (5)
# # splice_dec_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.13_chacha.splice_dec_cmsg_to_pipe
# not ok 169 tls.13_chacha.splice_dec_cmsg_to_pipe

<trim>

# #  RUN           tls.13_sm4_gcm.splice_cmsg_to_pipe ...
# # tls.c:688:splice_cmsg_to_pipe:Expected splice(self->cfd, NULL,
p[1], NULL, send_len, 0) (10) == -1 (-1)
# # tls.c:689:splice_cmsg_to_pipe:Expected errno (2) == EINVAL (22)
# # splice_cmsg_to_pipe: Test terminated by timeout
# #          FAIL  tls.13_sm4_gcm.splice_cmsg_to_pipe
# not ok 217 tls.13_sm4_gcm.splice_cmsg_to_pipe
# #  RUN           tls.13_sm4_gcm.splice_dec_cmsg_to_pipe ...
# # tls.c:708:splice_dec_cmsg_to_pipe:Expected recv(self->cfd, buf,
send_len, 0) (10) == -1 (-1)
# # tls.c:709:splice_dec_cmsg_to_pipe:Expected errno (2) == EIO (5)
[  661.901558] kworker/dying (49) used greatest stack depth: 10576 bytes left

Test case HANG here.

Full test log links [1] including boot log and test run log.

Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>

--
Linaro LKFT
https://lkft.linaro.org

https://lkft.validation.linaro.org/scheduler/job/4770773#L2700