linux-kernel - Re: [REGRESSION] x86/entry: TIF_SINGLESTEP handling is still broken

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Date:   Sun, 31 Jan 2021 14:20:04 -0800
From:   Andy Lutomirski <luto@...capital.net>
To:     Kyle Huey <me@...ehuey.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>,
        Gabriel Krisman Bertazi <krisman@...labora.com>,
        open list <linux-kernel@...r.kernel.org>,
        Robert O'Callahan <rocallahan@...il.com>
Subject: Re: [REGRESSION] x86/entry: TIF_SINGLESTEP handling is still broken



> On Jan 31, 2021, at 2:08 PM, Kyle Huey <me@...ehuey.com> wrote:
> 
> On Sun, Jan 31, 2021 at 2:04 PM Andy Lutomirski <luto@...capital.net> wrote:
>> Indeed, and I have tests for this.
> 
> Do you mean you already have a test case or that you would like a
> minimized test case?

A smallish test that we could stick in selftests would be great if that’s straightforward.

> 
> - Kyle