linux-kernel - Re: 2.6.23-rc7-mm1

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Message-ID: <20070924213622.GA6745@uranus.ravnborg.org>
Date:	Mon, 24 Sep 2007 23:36:22 +0200
From:	Sam Ravnborg <sam@...nborg.org>
To:	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Andy Whitcroft <apw@...dowen.org>
Subject: Re: 2.6.23-rc7-mm1

On Mon, Sep 24, 2007 at 11:02:22PM +0200, Sam Ravnborg wrote:
> Hi Kamalesh.
> 
> > The link error for a PowerMac G5 (powerpc) is still seen with 
> > 2.6.23-rc7-mm1,
> > and was reported for 2.6.23-rc6-mm1 (http://lkml.org/lkml/2007/9/19/62).
> > 
> >  KSYM    .tmp_kallsyms1.S
> >  AS      .tmp_kallsyms1.o
> >  LD      .tmp_vmlinux2
> >  KSYM    .tmp_kallsyms2.S
> >  AS      .tmp_kallsyms2.o
> >  LD      vmlinux.o
> > ld: dynreloc miscount for fs/built-in.o, section .opd
> > ld: can not edit opd Bad value
> > make: *** [vmlinux.o] Error 1
> 
> Can you try to narrow it down a bit further...
> As this happens when building fs/built-in.o it should be
> straightforward to do so.
> 
> First step would be to do:
> rm fs/built-in.o
> make fs/ V=1
> 
> Then copy the ld invocation and try to remove the input .o files one-by-one.
> This should tell you which .o file is causing the bug.
> 
> Next step is to try to squeze down the offending file until the
> errornous part remains.
> 
> Last time I did a
> make fs/file.i
> 
> And then I used gcc & ld to compile and link.
> Gradually removing stuff from file.i made me spot the problem
> with the weak prototype in a header file.
> 
> I guess something else is making ld hit this error now.
> 
> PS. Just reinstalled my dev box so no crosscompiler atm.

Got powerpc toolchain running now but cannot reproduce.
What config do you use (I used g5_defconfig)?
And what ld version?

	Sam
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