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Date:	Fri, 08 Aug 2014 18:18:37 +0200
From:	Denys Vlasenko <>
To:	Oleg Nesterov <>
CC:, "H. Peter Anvin" <>,
	Andy Lutomirski <>,
	Frederic Weisbecker <>
Subject: Re: [PATCH 8/8] x86: add comments about various syscall instructions,
 no code changes

On 08/05/2014 09:58 PM, Oleg Nesterov wrote:
> On 08/05, Denys Vlasenko wrote:
>> This patch adds comments which explain in detail
>> what registers are modified by each of these instructions.
>> The comments are placed immediately before corresponding
>> entry and exit points.
> This is great ;)

I just discovered that I misunderstood how _exactly_
SYSCALL decides whether to save rflags to r11 or not.

(Wrote an actual testcase for 32bit -> 64bit SYSCALL
transition. Practice always trumps theory, doesn't it? ;)

So I had to fix my comments in this patch. I guess
I need to send v4 of the patchset now...

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