linux-kernel - Re: Is arch/x86_64 kernel relocatable by default from redhat enterprise 5 originated kernel?

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Message-ID: <CAM_iQpXnDq2Y0wXZgC2yB4KZR_pBYj7Uz4K9ZpeP=5YFpMLfhw@mail.gmail.com>
Date:	Mon, 22 Aug 2011 22:35:15 +0800
From:	Américo Wang <xiyou.wangcong@...il.com>
To:	Vincent Li <vincent.mc.li@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Is arch/x86_64 kernel relocatable by default from redhat
 enterprise 5 originated kernel?

On Sun, Aug 21, 2011 at 6:10 AM, Vincent Li <vincent.mc.li@...il.com> wrote:
> Hi,
>

Hi,

>
> so it looks  the 64bit kernel is not relocatable according to above
> error, then I went to the distro's kernel source directory and
> couldn't find "RELOCATABLE" config in arch/x86_64/Kconfig, there is
> "RELOCATABLE" config in arch/i386/Kconfig. so I am bit
> confused if arch/x86_64 kernel is relocatable by default or
> relocatable is not supported yet for the redhat 5 originated x86_64
> kernel.

I think x86_64 is relocatable by default, as on RHEL5 x86_64 we
only have one vmlinuz for both production kernel and kdump kernel.

I don't know the history, probably x86_64 supports relocatable from
the beginning, thus there is no such Kconfig on RHEL5.

>
> I also suspect that kexec-tools-1.102pre-126.el5.i386.rpm might be the
> culprit here since it is for i386, but I couldn't install
> kexec-tools-1.102pre-126.el5.x86_64.rpm  lack of 64 bit libc.so.6 on
> the custom distro
>

So, probably this is the cause of the problem.

Thanks.
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