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From: Waiman Long <longman@redhat.com>
To: Davidlohr Bueso <dave@stgolabs.net>
Cc: Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/2] locking/debug: Add a master lock debugging switch
Date: Wed, 28 Mar 2018 09:05:42 -0400	[thread overview]
Message-ID: <45ebe079-e585-634d-2f40-f7ff781faa0c@redhat.com> (raw)
In-Reply-To: <20180327231321.4on2kczby5ejqglt@linux-n805>

On 03/27/2018 07:13 PM, Davidlohr Bueso wrote:
> On Tue, 27 Mar 2018, Waiman Long wrote:
>
>> Add a new master LOCK_DEBUGGING Kconfig option to turn on all the lock
>> debugging options except the selftests and the torture tests.
>
> For what purpose?
>
> I'm not sure we want yet another config debug option. These are all
> expert
> level configuration and honestly I would rather such users _think_ about
> what options they are enabling instead of giving them a large hammer.
>
> If enough load, this can also make boxes completely locked up for any
> sort of
> testing/debugging. I vote no.
>
> Also, CI efforts such 0-day already have the necessary scripting to
> cover the
> debug options that make sense.
>
> Thanks,
> Davidlohr

I think I misunderstood what the expectation is. I will send out an
updated patch to correct that.

Thanks,
Longman

      reply	other threads:[~2018-03-28 13:05 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-27 21:38 [PATCH v3 0/2] locking/debug: Add DEBUG_RWSEMS & LOCK_DEBUGGING Waiman Long
2018-03-27 21:38 ` [PATCH v3 1/2] locking/rwsem: Add DEBUG_RWSEMS to look for lock/unlock mismatches Waiman Long
2018-03-27 21:38 ` [PATCH v3 2/2] locking/debug: Add a master lock debugging switch Waiman Long
2018-03-27 23:13   ` Davidlohr Bueso
2018-03-28 13:05     ` Waiman Long [this message]

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