linux-kernel - Re: [PATCH v4 linux-kselftest-test 4/6] kunit: remove timeout dependence on sysctl_hung_task_timeout

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Message-Id: <20191119210628.B038F222DC@mail.kernel.org>
Date:   Tue, 19 Nov 2019 13:06:28 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Alan Maguire <alan.maguire@...cle.com>, brendanhiggins@...gle.com,
        linux-kselftest@...r.kernel.org, skhan@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, kunit-dev@...glegroups.com,
        keescook@...omium.org, yzaikin@...gle.com,
        akpm@...ux-foundation.org, yamada.masahiro@...ionext.com,
        catalin.marinas@....com, joe.lawrence@...hat.com,
        penguin-kernel@...ove.sakura.ne.jp, schowdary@...dia.com,
        urezki@...il.com, andriy.shevchenko@...ux.intel.com,
        corbet@....net, tytso@....edu, adilger.kernel@...ger.ca,
        mcgrof@...nel.org, changbin.du@...el.com,
        linux-ext4@...r.kernel.org, linux-doc@...r.kernel.org,
        Alan Maguire <alan.maguire@...cle.com>,
        Knut Omang <knut.omang@...cle.com>
Subject: Re: [PATCH v4 linux-kselftest-test 4/6] kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds

Quoting Alan Maguire (2019-11-15 02:16:10)
> In discussion of how to handle timeouts, it was noted that if
> sysctl_hung_task_timeout_seconds is exceeded for a kunit test,
> the test task will be killed and an oops generated.  This should
> suffice as a means of debugging such timeout issues for now.
> 
> Hence remove use of sysctl_hung_task_timeout_secs, which has the
> added benefit of avoiding the need to export that symbol from
> the core kernel.
> 
> Signed-off-by: Alan Maguire <alan.maguire@...cle.com>
> Signed-off-by: Knut Omang <knut.omang@...cle.com>
> ---

Reviewed-by: Stephen Boyd <sboyd@...nel.org>