linux-kernel - Re: Build regressions/improvements in v3.7-rc5

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Message-ID: <1352757066.32153.5@snotra>
Date:	Mon, 12 Nov 2012 15:51:06 -0600
From:	Scott Wood <scottwood@...escale.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	<linux-kernel@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>
Subject: Re: Build regressions/improvements in v3.7-rc5

On 11/12/2012 03:02:46 PM, Geert Uytterhoeven wrote:
> On Mon, Nov 12, 2012 at 9:58 PM, Geert Uytterhoeven
> <geert@...ux-m68k.org> wrote:
> > JFYI, when comparing v3.7-rc5 to v3.7-rc4[3], the summaries are:
> >   - build errors: +14/-4
> 
> 14 regressions:
>   + drivers/virt/fsl_hypervisor.c: error: 'MSR_GS' undeclared (first
> use in this function):  => 799:93

These reports would be more useful if the actual .config were provided,  
rather than just saying "powerpc randconfig".

I doubt this particular one is a regression; it looks like the  
dependencies have always been too weak (patch sent) and you're just  
comparing different randomly-generated configs.

> powerpc-randconfig
> 
>   + error: relocation truncated to fit: R_PPC64_REL24 against symbol
> `._mcount' defined in .text section in arch/powerpc/kernel/entry_64.o:
> (.text+0x1ff9eb8) => (.text+0x1ffa274), (.text+0x1ff7840)
> 
> powerpc-allyesconfig

It's been over 3 years since powerpc-allyesconfig built (it's just too  
big for the relocation model the kernel uses) -- how is this a  
regression?

-Scott
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