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Date: Tue, 21 Mar 2017 08:59:34 +0100
From: Adam Borowski <kilobyte@angband.pl>
To: Ingo Molnar <mingo@kernel.org>
Cc: Andrei Vagin <avagin@gmail.com>, Ingo Molnar <mingo@redhat.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        LKML <linux-kernel@vger.kernel.org>,
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        Andy Lutomirski <luto@kernel.org>,
        Thomas Garnier <thgarnie@google.com>, "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: linux-next: x86: Unalbe to run x32 processes on the x86_64 kernel
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On Tue, Mar 21, 2017 at 07:45:39AM +0100, Ingo Molnar wrote:
> * Andrei Vagin <avagin@gmail.com> wrote:
> 
> > # first bad commit: [45fc8757d1d2128e342b4e7ef39adedf7752faac] x86:
> > Make the GDT remapping read-only on 64-bit
> 
> Just wondering, does the following commit fix it:
> 
>   5b781c7e317f x86/tls: Forcibly set the accessed bit in TLS segments

It does fix i386 but not x32.

By "x32" I mean CONFIG_X86_X32, by "i386" CONFIG_IA32_EMULATION, contrary to
Andrei's first report.  The naming of the new ABI wasn't too fortunate...

-- 
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⣾⠁⢠⠒⠀⣿⡁
⢿⡄⠘⠷⠚⠋⠀ Collisions shmolisions, let's see them find a collision or second
⠈⠳⣄⠀⠀⠀⠀ preimage for double rot13!