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Date: Thu, 31 Mar 2016 17:00:24 -0500
From: Linus Torvalds <>
To: "Eric W. Biederman" <>
Cc: Scott Bauer <>, 
	Linux Kernel Mailing List <>, 
	"" <>, 
	"the arch/x86 maintainers" <>, Andi Kleen <>, 
	Andy Lutomirski <>, Ingo Molnar <>, 
	Thomas Gleixner <>,, 
	Abhiram Balasubramanian <>, Scott Bauer <>
Subject: Re: [PATCH v4 1/4] SROP Mitigation: Architecture independent code for
 signal cookies

On Thu, Mar 31, 2016 at 3:25 PM, Eric W. Biederman
<> wrote:
> I suspect we want this to be a per-mm attribute rather than a per-thread
> attribute.
> Otherwise you are breaking anything that uses a N-M threading model.
> Which I suspect means that this implementation choice breaks all go
> programs on linux.

That sounds like a good point, but wouldn't it make more conceptual
sense to make it part of "struct sighand_struct" instead?

That is also shared for threads.


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