Re: Compile error on 2.6.10-rc1-mm1

[Hariprasad Nellitheertha]

Andrew Morton wrote:
> Hariprasad Nellitheertha <hari@xxxxxxxxxx> wrote:
>
> > The compile time error that few people have been seeing with 
> > the last couple of -mm releases are due to the changes 
> > introduced to arch/i386/kernel/vmlinux.lds.S to enable kexec 
> > based crashdumps.
> > ...
> > --- linux-2.6.10-rc1/arch/i386/kernel/vmlinux.lds.S~kdump-fix-bss-compile-error	2004-10-28 15:15:43.000000000 +0530
> > +++ linux-2.6.10-rc1-hari/arch/i386/kernel/vmlinux.lds.S	2004-10-28 15:18:04.000000000 +0530
> > @@ -117,8 +117,9 @@ SECTIONS
> >    /* freed after init ends here */
> >  	
> >    __bss_start = .;		/* BSS */
> > +  .bss.page_aligned  : AT(ADDR(.bss.page_aligned) - LOAD_OFFSET) {
> > +	*(.bss.page_aligned) }
> >    .bss : AT(ADDR(.bss) - LOAD_OFFSET) {
> > -	*(.bss.page_aligned)
> >  	*(.bss)
> >    }
> >    . = ALIGN(4);
>
>
> It's hard to see how that could go wrong.  Did you compare the before- and
> after- output from `objdump -h vmlinux'?

The output of objdump for the bss related sections are as below..

Without patch - machine with newer binutils

 24 .bss          0002cf38  c03df000  003df000  002df000  2**12
                  ALLOC

With patch - machine with newer binutils

 24 .bss.page_aligned 00002000  c03df000  c03df000  002df000  2**2

 25 .bss          0002af38  c03e1000  003e1000  002df000  2**12
                  ALLOC

With patch - machine with old binutils

 24 .bss.page_aligned 00002000  c03df000  c03df000  002df000  2**2
                  CONTENTS
 25 .bss          0002af38  c03e1000  003e1000  002df000  2**12
                  ALLOC

Regards, Hari
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