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Re: UVM and the NULL page

To: Pierre Pronchery <khorben%defora.org@localhost>
Subject: Re: UVM and the NULL page
From: Martin Husemann <martin%duskware.de@localhost>
Date: Fri, 29 Jul 2016 09:30:33 +0200

On Thu, Jul 28, 2016 at 08:48:51PM +0200, Pierre Pronchery wrote:
> IIRC some software relies on this feature, like emulators/wine. If 
> really so then something like a sysctl to allow it again would be helpful.

Yes, we have that (and it defaults to disabled everywhere, I think):

vm.user_va0_disable = 1

Martin

References:
- UVM and the NULL page
  - From: Maxime Villard
- Re: UVM and the NULL page
  - From: Pierre Pronchery

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