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From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 13 May 2024 19:38:13 -0700
Message-ID: <CAHk-=wiAXOLja2AqBzPZE+k9DKX0wjBGKZT+m2DN_hariyA0Pw@mail.gmail.com>
Subject: Re: [GIT PULL] x86/shstk change for v6.10
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, "the arch/x86 maintainers" <x86@kernel.org>, 
	"H.J. Lu" <hjl.tools@gmail.com>, "H. Peter Anvin" <hpa@zytor.com>
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On Mon, 13 May 2024 at 01:13, Ingo Molnar <mingo@kernel.org> wrote:
>
> Enable shadow stacks for x32.
>
> While we normally don't do such feature-enabling on 32-bit
> kernels anymore, this change is small, straightforward & tested on
> upstream glibc.

Color me confused.

  "feature-enabling on 32-bit kernels"

This is not for 32-bit kernels, as far as I can tell. This is just the
x32 user mode for x86-64 kernels.

Or am I missing something?

I've pulled this, but does anybody actually use x32? I feel like it
was a failed experiment. No?

              Linus