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Message-ID: <20071203141739.GC4719@one.firstfloor.org> Date: Mon, 3 Dec 2007 15:17:39 +0100 From: Andi Kleen <andi@...stfloor.org> To: Ingo Molnar <mingo@...e.hu> Cc: Andi Kleen <andi@...stfloor.org>, Radoslaw Szkodzinski <lkml@...ralstorm.puszkin.org>, Arjan van de Ven <arjan@...radead.org>, linux-kernel@...r.kernel.org, Andrew Morton <akpm@...ux-foundation.org>, Thomas Gleixner <tglx@...utronix.de> Subject: Re: [feature] automatically detect hung TASK_UNINTERRUPTIBLE tasks On Mon, Dec 03, 2007 at 02:55:47PM +0100, Ingo Molnar wrote: > > * Andi Kleen <andi@...stfloor.org> wrote: > > > I would still appreciate if you could state what default value you > > plan to set the backtrace sysctl to in the submitted patch. > > there's no "backtrace sysctl" planned for the moment. This "hung tasks" I hope you'll reconsider that at least before submitting this patch to mainline. For -mm it's probably ok. > debugging feature can be disabled/enabled on a wide scale already: > > - in the .config > > - runtime, temporarily, via: > > echo 0 > /proc/sys/kernel/hung_task_timeout_secs That won't address my concerns about already "breaking" (as in frightening the user etc.) common error handling scenarios by default. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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