linux-kernel - Re: [PATCH v2] riscv: add support for SECCOMP and SECCOMP

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Message-ID: <alpine.DEB.2.21.9999.1908231717550.25649@viisi.sifive.com>
Date:   Fri, 23 Aug 2019 17:30:53 -0700 (PDT)
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     David Abdurachmanov <david.abdurachmanov@...il.com>,
        Tycho Andersen <tycho@...ho.ws>
cc:     Palmer Dabbelt <palmer@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Oleg Nesterov <oleg@...hat.com>,
        Kees Cook <keescook@...omium.org>,
        Andy Lutomirski <luto@...capital.net>,
        Will Drewry <wad@...omium.org>, Shuah Khan <shuah@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        David Abdurachmanov <david.abdurachmanov@...ive.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Anup Patel <Anup.Patel@....com>,
        Vincent Chen <vincentc@...estech.com>,
        Alan Kao <alankao@...estech.com>,
        linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, netdev@...r.kernel.org,
        bpf@...r.kernel.org, me@...losedp.com
Subject: Re: [PATCH v2] riscv: add support for SECCOMP and SECCOMP_FILTER

On Thu, 22 Aug 2019, David Abdurachmanov wrote:

> There is one failing kernel selftest: global.user_notification_signal

Is this the only failing test?  Or are the rest of the selftests skipped 
when this test fails, and no further tests are run, as seems to be shown 
here:

  https://lore.kernel.org/linux-riscv/CADnnUqcmDMRe1f+3jG8SPR6jRrnBsY8VVD70VbKEm0NqYeoicA@mail.gmail.com/

For example, looking at the source, I'd naively expect to see the 
user_notification_closed_listener test result -- which follows right 
after the failing test in the selftest source.  But there aren't any 
results?

Also - could you follow up with the author of this failing test to see if 
we can get some more clarity about what might be going wrong here?  It 
appears that the failing test was added in commit 6a21cc50f0c7f ("seccomp: 
add a return code to trap to userspace") by Tycho Andersen 
<tycho@...ho.ws>.

- Paul