From: Valentin Schneider <valentin.schneider@arm.com>
To: Peter Zijlstra <peterz@infradead.org>,
"Paul E. McKenney" <paulmck@kernel.org>
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org,
bristot@redhat.com, frederic@kernel.org
Subject: Re: lockdep splat in v5.11-rc1 involving console_sem and rq locks
Date: Wed, 06 Jan 2021 15:49:46 +0000 [thread overview]
Message-ID: <jhj1reyawv9.mognet@arm.com> (raw)
In-Reply-To: <X/Xa1fwplnZIOm+U@hirez.programming.kicks-ass.net>
On 06/01/21 16:44, Peter Zijlstra wrote:
> On Wed, Jan 06, 2021 at 06:46:21AM -0800, Paul E. McKenney wrote:
>> What would break if I made the code dump out a few entries in the
>> runqueue if the warning triggered?
>
> There was a patch around that did that, Valentin might remember where
> that was.
There is http://lore.kernel.org/r/jhjpn4bwznx.mognet@arm.com which is a
dumb inline of print_rq() / print_task().
next prev parent reply other threads:[~2021-01-06 15:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-05 22:01 lockdep splat in v5.11-rc1 involving console_sem and rq locks Paul E. McKenney
2021-01-06 9:52 ` Peter Zijlstra
2021-01-06 14:46 ` Paul E. McKenney
2021-01-06 15:44 ` Peter Zijlstra
2021-01-06 15:49 ` Valentin Schneider [this message]
2021-01-06 17:52 ` Paul E. McKenney
2021-01-11 14:42 ` Peter Zijlstra
2021-01-11 15:11 ` Paul E. McKenney
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