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From: Thomas Gleixner <tglx@linutronix.de>
To: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>,
	linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
	Kees Cook <keescook@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	rcu@vger.kernel.org, Tejun Heo <tj@kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 1/2] kernel: set taint flag 'L' at any kind of lockup
Date: Thu, 16 Jan 2020 12:19:54 +0100
Message-ID: <87eevzwsv9.fsf@nanos.tec.linutronix.de> (raw)
In-Reply-To: <157503370645.8187.6335564487789994134.stgit@buzz>

Konstantin Khlebnikov <khlebnikov@yandex-team.ru> writes:
> Any lockup or stall notifies about unexpected lack of progress.
> It's better to know about them for further problem investigations.
> Right now only softlockup has own taint flag. Let's generalize it.
> This patch renames TAINT_SOFTLOCKUP into TAINT_LOCKUP at sets it for:

Please search 'This patch' in Documentation/process/submitting-patches.rst

> - softlockup
> - hardlockup
> - RCU stalls
> - stuck in workqueues
> - detected task hung

This does too many things at once and wants to be split in pieces:

  1) Change the TAINT flag and update documentation

  2) Add the tainting to the places which are not yet covered



      parent reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-29 13:21 Konstantin Khlebnikov
2019-11-29 13:21 ` [PATCH 2/2] kernel: add sysctl kernel.nr_taints Konstantin Khlebnikov
2019-11-30 16:33   ` Kees Cook
2019-11-30 16:22 ` [PATCH 1/2] kernel: set taint flag 'L' at any kind of lockup Kees Cook
2019-12-02 20:03 ` Paul E. McKenney
2020-01-16 11:19 ` Thomas Gleixner [this message]

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