Re: [RFC][PATCH] signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die

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To: ebiederm@xxxxxxxxxxxx (Eric W. Biederman)
Subject: Re: [RFC][PATCH] signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die
From: Andreas Schwab <schwab@xxxxxxxxxxxxxx>
Date: Mon, 26 Jul 2021 22:13:50 +0200
Cc: Michael Schmitz <schmitzmic@xxxxxxxxx>, Brad Boyer <flar@xxxxxxxxxxxxx>, geert@xxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx
In-reply-to: <87a6m8kgtx.fsf_-_@disp2133> (Eric W. Biederman's message of "Mon, 26 Jul 2021 14:36:42 -0500")
References: <e9009e13-cfec-c494-0b3b-f334f75cd1e4@gmail.com> <af434994-5c61-0e3a-c7bc-3ed966ccb44f@gmail.com> <87h7gopvz2.fsf@disp2133> <328e59fb-3e8c-e4cd-06b4-1975ce98614a@gmail.com> <877dhio13t.fsf@disp2133> <12992a3c-0740-f90e-aa4e-1ec1d8ea38f6@gmail.com> <87tukkk6h3.fsf@disp2133> <df6618bf-d1bc-4759-2d14-934c22d54a83@gmail.com> <87eebn7w7y.fsf@igel.home> <db43bef1-7938-4fc1-853d-c20d66521329@gmail.com> <20210725101253.GA6096@allandria.com> <be3ddf9a-745e-4798-17a7-a9d0ddd7eef7@gmail.com> <87a6m8kgtx.fsf_-_@disp2133>
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)

On Jul 26 2021, Eric W. Biederman wrote:

> diff --git a/arch/m68k/fpsp040/skeleton.S b/arch/m68k/fpsp040/skeleton.S
> index a8f41615d94a..ec767523c012 100644
> --- a/arch/m68k/fpsp040/skeleton.S
> +++ b/arch/m68k/fpsp040/skeleton.S
> @@ -502,7 +502,8 @@ in_ea:
>  	.section .fixup,#alloc,#execinstr
>  	.even
>  1:
> -	jbra	fpsp040_die
> +	bsrl	fpsp040_die
> +	jmp	.Lnotkern

That should be jbra instead of jmp.

Andreas.

-- 
Andreas Schwab, schwab@xxxxxxxxxxxxxx
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Follow-Ups:
- Re: [RFC][PATCH] signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die
  - From: Eric W. Biederman

References:
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Eric W. Biederman
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Eric W. Biederman
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Eric W. Biederman
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Andreas Schwab
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Brad Boyer
- Re: [PATCH v4 0/3] m68k: Improved switch stack handling
  - From: Michael Schmitz
- [RFC][PATCH] signal/m68k: Use force_sigsegv(SIGSEGV) in fpsp040_die
  - From: Eric W. Biederman

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