Comment 17 for bug 956051

This bug also affects the ubuntu install on our dual AMD 6238 cpus while running XenServer 6.0.201 and also Xen Cloud Platform 1.5

The installer shows:
Warning: Failure trying to run: chroot /target dpkg --force-depends --install /var/cache/apt/archives/debconf_1.5.42ubuntu1_all.deb

In the log console while the installer is running (ctrl-alt-f4) I see the following (which leads me to believe it's the above bug):

kernel: [ 2051.425647] pycompile[20389] trap invalid opcode ip:7f84167cae11 sp:7fffc8ca98e0 error:0 in libm-2.15.so[7f8416788000+f9000]
deboostrap: Illegal instruction
debootstrap: dpkg: error processing debconf (--install):

The above issue was also seen in bug 982430