linux-kernel - Re: [PATCH 0/2] Use named address spaces for percpu data

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Message-ID: <20180912210849.GA6334@gmail.com>
Date:   Wed, 12 Sep 2018 23:08:49 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Richard Henderson <rth@...ddle.net>
Cc:     Matthew Wilcox <willy@...radead.org>,
        Waiman Long <longman@...hat.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH 0/2] Use named address spaces for percpu data


* Ingo Molnar <mingo@...nel.org> wrote:

> Not all GCC versions seem to like this series:
> 
>  In file included from arch/x86/mm/tlb.c:12:0:
>  arch/x86/mm/tlb.c: In function ‘switch_mm_irqs_off’:
>  ./arch/x86/include/asm/mmu_context.h:210:28: internal compiler error: Segmentation fault
>   #define switch_mm_irqs_off switch_mm_irqs_off
>  arch/x86/mm/tlb.c:183:6: note: in expansion of macro ‘switch_mm_irqs_off’
>   void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
>  Please submit a full bug report,
>  with preprocessed source if appropriate.
>  See <file:///usr/share/doc/gcc-7/README.Bugs> for instructions.
> 
> gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3) 

That's with a 32-bit kernel, config attached.

Thanks,

	Ingo

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