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

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Message-ID: <20071203163626.GC4004@one.firstfloor.org>
Date:	Mon, 3 Dec 2007 17:36:26 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Arjan van de Ven <arjan@...radead.org>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Radoslaw Szkodzinski <lkml@...ralstorm.puszkin.org>,
	Ingo Molnar <mingo@...e.hu>, 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

> the scsi layer will have the IO totally aborted within that time anyway;
> the retry timeout for disks is 30 seconds after all.

There are blocking waits who wait for multiple IOs. 

Also i think the SCSI driver can tune this anyways and I suspect
iSCSI and friends increase it (?)

-Andi

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