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From: Luis Chamberlain <mcgrof@kernel.org>
To: Alan Maguire <alan.maguire@oracle.com>
Cc: brendanhiggins@google.com, skhan@linuxfoundation.org,
	linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
	kunit-dev@googlegroups.com, keescook@chromium.org,
	yzaikin@google.com, akpm@linux-foundation.org,
	yamada.masahiro@socionext.com, catalin.marinas@arm.com,
	joe.lawrence@redhat.com, penguin-kernel@i-love.sakura.ne.jp,
	schowdary@nvidia.com, urezki@gmail.com,
	andriy.shevchenko@linux.intel.com, corbet@lwn.net, tytso@mit.edu,
	adilger.kernel@dilger.ca, changbin.du@intel.com,
	linux-ext4@vger.kernel.org, linux-doc@vger.kernel.org,
	sboyd@kernel.org, Knut Omang <knut.omang@oracle.com>
Subject: Re: [PATCH v4 linux-kselftest-test 4/6] kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds
Date: Mon, 18 Nov 2019 22:09:58 +0000	[thread overview]
Message-ID: <20191118220958.GS11244@42.do-not-panic.com> (raw)
In-Reply-To: <1573812972-10529-5-git-send-email-alan.maguire@oracle.com>

On Fri, Nov 15, 2019 at 10:16:10AM +0000, Alan Maguire wrote:
> 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@oracle.com>
> Signed-off-by: Knut Omang <knut.omang@oracle.com>

This seems like a workaround for sysctl_hung_task_timeout_secs not being
exported. If true, this can be addressed by creating a symbol namespace
(new) and using that namespace on this path.

  Luis

  reply	other threads:[~2019-11-18 22:10 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-15 10:16 [PATCH v4 linux-kselftest-test 0/6] kunit: support building core/tests as modules Alan Maguire
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 1/6] kunit: move string-stream.h to lib/kunit Alan Maguire
2019-11-17  1:33   ` Stephen Boyd
2019-11-19 18:36     ` Brendan Higgins
2019-11-19 18:39   ` Brendan Higgins
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 2/6] kunit: hide unexported try-catch interface in try-catch-impl.h Alan Maguire
2019-11-17  1:36   ` Stephen Boyd
2019-11-18 17:30     ` Alan Maguire
2019-11-19 18:48   ` Brendan Higgins
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 3/6] kunit: allow kunit tests to be loaded as a module Alan Maguire
2019-11-19 19:16   ` Brendan Higgins
2019-11-20 13:56     ` Alan Maguire
2019-11-19 21:05   ` Stephen Boyd
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 4/6] kunit: remove timeout dependence on sysctl_hung_task_timeout_seconds Alan Maguire
2019-11-18 22:09   ` Luis Chamberlain [this message]
2019-11-19  1:24     ` Brendan Higgins
2019-11-19 21:06   ` Stephen Boyd
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 5/6] kunit: allow kunit to be loaded as a module Alan Maguire
2019-11-19 21:13   ` Stephen Boyd
2019-11-20 13:46     ` Alan Maguire
2019-11-15 10:16 ` [PATCH v4 linux-kselftest-test 6/6] kunit: update documentation to describe module-based build Alan Maguire
2019-11-19 21:15   ` Stephen Boyd

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