[Fedora-xen] 4gb seg fixup, process on FC6 domU

[Daniel P. Berrange]

On Wed, Dec 20, 2006 at 07:37:41PM +0500, Asrai khn wrote:
> On 12/20/06, Daniel P. Berrange <berrange at redhat.com> wrote:
> >On Wed, Dec 20, 2006 at 07:19:06PM +0500, Asrai khn wrote:
> >
> >If you're not using pygrub, then you'll at least need to make sure the
> >correct 'kernelcap' file is installed in the guest, with file name
> >matching the kernel version.
> 
> 
> What do you mean by install 'kernelcap' file on guest?
> you want me to create this file manually in the specific path and then echo
> 'something' to it?

Actually i've realized its not the name of the config name which matters.
The issue is you need to run 'ldconfig' after creating the config file so
that it updates its library cache

  echo "hwcap 0 nosegneg" > /etc/ld.conf.so.d/nosegneg.conf
  ldconfig


Once you've done that, you can verify the linker knows about Xen variant
by looking for libc mapping. eg before I add the hwcap stuff it shows:

  # ldconfig -v -p 2>&1 | grep libc.so
        libc.so.6 (libc6, OS ABI: Linux 2.6.9) => /lib/libc.so.6

Once I create the hwcap setting & re-run ldconfig it shows

  # ldconfig -v -p 2>&1 | grep libc.so
        libc.so.6 (libc6, hwcap: 0x0018000000000000, OS ABI: Linux 2.6.9) => /lib/i686/nosegneg/libc.so.6
        libc.so.6 (libc6, OS ABI: Linux 2.6.9) => /lib/libc.so.6

Regards,
Dan.
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