linux-kernel - Re: 5.2-rc0.8: emacs segfaults?! x220, with 32-bit userland

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Date:   Mon, 20 May 2019 18:06:36 +0200
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Pavel Machek <pavel@....cz>
Cc:     kernel list <linux-kernel@...r.kernel.org>, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de, hpa@...or.com, x86@...nel.org
Subject: Re: 5.2-rc0.8: emacs segfaults?! x220, with 32-bit userland

On 2019-05-20 00:17:01 [+0200], Pavel Machek wrote:
> Hi!
Hi,

> emacs segfaults... when I attempt to exit it. And that did not use to
> be the case. Nothing suspect in the dmesg. Rest of the machine seems
> to work ok.
…
> Ideas welcome...

I assume that this happens with -rc1, too. Could you please check if
emacs still segfaults with commit

  d9c9ce34ed5c8 ("x86/fpu: Fault-in user stack if copy_fpstate_to_sigframe() fails")

and commit

  89833fab15d60 ("x86/fpu: Fix __user annotations")

?

Sebastian