linux-kernel - Re: BUG: core dump in selftest of proc fs

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Message-ID: <Y7XHL8ZRBf7TA/q7@p183>
Date:   Wed, 4 Jan 2023 21:36:31 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     Mirsad Goran Todorovac <mirsad.todorovac@....unizg.hr>
Cc:     linux-kselftest@...r.kernel.org, Shuah Khan <shuah@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Brian Foster <bfoster@...hat.com>,
        Guo Zhengkui <guozhengkui@...o.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Thorsten Leemhuis <regressions@...mhuis.info>
Subject: Re: BUG: core dump in selftest of proc fs

On Wed, Jan 04, 2023 at 07:27:40PM +0100, Mirsad Goran Todorovac wrote:
> Trying to complete `make kselftest` for the first time, so maybe I'm doing something wrong?
> 
> Or we are having a regression in 6.2-rc2 release candidate ...
> 
> However, the output of selftest run is:

> # proc-empty-vm: proc-empty-vm.c:184: test_proc_pid_maps: Assertion `rv == 0' failed.
> # /usr/bin/timeout: the monitored command dumped core
> # Aborted
> not ok 5 selftests: proc: proc-empty-vm # exit=134
> # selftests: proc: proc-pid-vm
> # proc-pid-vm: proc-pid-vm.c:365: main: Assertion `rv == len' failed.
> # /usr/bin/timeout: the monitored command dumped core
> # Aborted
> 
> Please find attached lshw output, dmesg, config and lsmod.
> 
> I am available for further diagnostics.
> 
> The platform is Ubuntu 22.10 kinetic kudu on a Lenovo Ideapad 3 15ITL6 laptop.

What the output of "cat /proc/self/maps" ?