[Bug 82211] [BISECTED][Nested xen on kvm] L1 guest panic and reboot when L1 guest boot up.

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https://bugzilla.kernel.org/show_bug.cgi?id=82211

Paolo Bonzini <bonzini@xxxxxxx> changed:

           What    |Removed                     |Added
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                 CC|                            |bonzini@xxxxxxx

--- Comment #3 from Paolo Bonzini <bonzini@xxxxxxx> ---
Reproduced.  This is caused by "-cpu host" and, in particular by x2apic.  This
command line fails:

/usr/libexec/qemu-kvm \
    -kernel xen-4.4.0 \
    -append 'noreboot loglvl=all com1=115200,8n1 console=com1' \
    -serial mon:stdio \
    -initrd /boot/vmlinuz-2.6.18-348.el5xen -cpu kvm64,+x2apic

It works with "-cpu kvm64".

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