linux-kernel - Re: [RFC][PATCH] Make prepare

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Date:	18 May 2007 19:55:11 +0200
From:	Andi Kleen <andi@...stfloor.org>
To:	Pierre Ossman <drzeus-list@...eus.cx>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Haavard Skinnemoen <hskinnemoen@...el.com>
Subject: Re: [RFC][PATCH] Make prepare_namespace() wait for devices

Pierre Ossman <drzeus-list@...eus.cx> writes:
>     
>     If the device never shows up than we will hang in an infinite loop.
>     Previously we panic:ed instead, so this behaviour should be no
>     worse.


Actually that's not correct. With panic=30 and lilo -R and a working 
backup kernel a system can recover from this. With your endless loop it can't.

Always add some kind of timeout.

-Andi


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