linux-kernel - Re: [feature] automatically detect hung TASK

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Message-ID: <20071202200857.GB12101@elte.hu>
Date:	Sun, 2 Dec 2007 21:08:57 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.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


* Arjan van de Ven <arjan@...radead.org> wrote:

> > TASK_KILLABLE should be the right solution i think.
> 
> .. and it's even a tool to show where we missed making something 
> TASK_KILLABLE... anything that triggers from NFS and the like really 
> ought to be TASK_KILLABLE after all. This patch will point any 
> omissions out quite nicely without having to do any kind of 
> destructive testing.

yeah, exactly. Having something "hard blocked" for a long amount of time 
is rarely a good thing.

	Ingo
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