linux-kernel - Re: [PATCH tip/core/urgent] fix several lockdep splats, allow multiple splats

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Message-ID: <10035.1272644205@localhost>
Date:	Fri, 30 Apr 2010 12:16:45 -0400
From:	Valdis.Kletnieks@...edu
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	Ingo Molnar <mingo@...e.hu>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, laijs@...fujitsu.com,
	dipankar@...ibm.com, akpm@...ux-foundation.org,
	josh@...htriplett.org, dvhltc@...ibm.com, niv@...ibm.com,
	tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org,
	dhowells@...hat.com, eric.dumazet@...il.com
Subject: Re: [PATCH tip/core/urgent] fix several lockdep splats, allow multiple splats

On Fri, 30 Apr 2010 11:33:34 EDT, Mathieu Desnoyers said:

> I recommend creating a kernel command line parameter that would tweak
> the number of messages printed by lockdep. The default would indeed by 1
> message, but people in a debugging marathon can specify a larger value
> so they won't have to reboot between each individual lockdep error.

Yeah, that would rock for development kernels - playing whack-a-mole with
a half-dozen new lockdep whinges can easily stretch out for quite some time.

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