linux-kernel - Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2: hang in atomic copy)

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Message-ID: <4630B183.1000905@rtr.ca>
Date:	Thu, 26 Apr 2007 10:04:51 -0400
From:	Mark Lord <lkml@....ca>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Pavel Machek <pavel@....cz>,
	Kenneth Crudup <kenny@...ix.com>,
	Nick Piggin <npiggin@...e.de>, Mike Galbraith <efault@....de>,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Con Kolivas <kernel@...ivas.org>,
	suspend2-devel@...ts.suspend2.net, Ingo Molnar <mingo@...e.hu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Arjan van de Ven <arjan@...radead.org>
Subject: Re: suspend2 merge (was Re: [Suspend2-devel] Re: CFS and suspend2:
 hang in atomic copy)

Linus Torvalds wrote:
> 
> See? Two *totally* different cases. They have *nothing* in common. Not the 
> call sequence, not the logic, not *anything*.

Except that both methods cannot rely upon hot-pluggable devices
still being present on resume/restore.  It is exceptionally common
to unplug all USB/firewire cables, mouse, keyboard, docking cables etc..
after a machine is in S2R state.

Cheers
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