On 3/25/22 1:40 AM, Naresh Kamboju wrote:

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

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# # 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

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# # 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

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# # 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

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# # 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

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# # 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

This seems to be the problem perhaps.

Jakub, any thoughts. The last change to tls.c was a while back.

Test case HANG here.

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

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

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

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

thanks, -- Shuah thanks, -- Shuah