netdev - Re: kselftest: net: tls: hangs

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Date:   Thu, 31 Mar 2022 13:18:56 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Shuah Khan <shuah@...nel.org>,
        Shuah Khan <skhan@...uxfoundation.org>,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        "open list:KERNEL SELFTEST FRAMEWORK <linux-kselftest@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>, lkft-triage@...ts.linaro.org,
        Netdev" <netdev@...r.kernel.org>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: kselftest: net: tls: hangs

Hi Jakub,

> Can you check where the process is stuck and it's state?
> /proc/$pid/stack and run that thru scripts/decode_stacktrace
>

Steps to reproduce:
          - cd /opt/kselftests/default-in-kernel/net
          - ./tls &
          - tests_pid=$!
          - echo $tests_pid
          - sleep 90
          - cat /proc/$tests_pid/stack | tee tests_pid_stack.log
          - cat tests_pid_stack.log

[<0>] do_wait+0x191/0x3a0
[<0>] kernel_wait4+0xaf/0x160
[<0>] __do_sys_wait4+0x85/0x90
[<0>] __x64_sys_wait4+0x1c/0x20
[<0>] do_syscall_64+0x5c/0x80
[<0>] entry_SYSCALL_64_after_hwframe+0x44/0xae

Detail test log can be found here in this link [1]

I do not see any output from
./scripts/decode_stacktrace.sh  stack-dump.txt


- Naresh

[1] https://lkft.validation.linaro.org/scheduler/job/4812800#L2256