linux-kernel - Re: [patch 5/5] elf: Add support for loading ET

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Date:	Wed, 19 Oct 2011 22:52:10 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Tejun Heo <tj@...nel.org>
Cc:	Pavel Emelyanov <xemul@...allels.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Andrey Vagin <avagin@...allels.com>,
	James Bottomley <jbottomley@...allels.com>,
	Glauber Costa <glommer@...allels.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Dave Hansen <dave@...ux.vnet.ibm.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Daniel Lezcano <dlezcano@...ibm.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...hat.com>
Subject: Re: [patch 5/5] elf: Add support for loading ET_CKPT files

On Wed, Oct 19, 2011 at 10:49:26PM +0400, Cyrill Gorcunov wrote:
..
> 
> Hi Tejun,
> 
> apart from controversy on elf'ish restore, I would like to know if there
> a way to poke alien process memory with something faster than sizeof(long)
> at once as ptrace proposes. At moment on my test tasks it's not that long
> but the problem is there are servers with GBs of memory and snapshotting
> memory data becomes a bottleneck. The same applies to restore procedure,
> especially on big-data-chunks. Hm? Am I missing something obvious?
> 

Drop it, I had something different in mind, sorry for noise.

	Cyrill
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