Re: [PATCH 00/16] Entry stuff, in decent shape now

From: Andy Lutomirski
Date: Mon Nov 20 2017 - 13:49:16 EST

On Mon, Nov 20, 2017 at 9:07 AM, Andy Lutomirski <luto@xxxxxxxxxx> wrote:
> This sets up stack switching, including for SYSCALL. I think it's
> in decent shape.

> - 32-bit kernels are failing the sigreturn_32 test. But they're also
> failing without the patches, so I'm not sure this is a bug in the
> series per se. Needs further investigation. (Off the top of my head,
> this could be further fallout from Thomas's IDT rework.)

Hmm, I lied. They *were* failing, but it was fixed by:

commit d0cd64b02aa854d68ce517cb7da1fe4e4fff2653
Author: Yonghong Song <yhs@xxxxxx>
Date: Wed Nov 8 11:28:45 2017 -0800

x86/idt: Remove X86_TRAP_BP initialization in idt_setup_traps()

so never mind.

I'd love to get the x86 selftests added to 0day's pile.