On 05/06/2016 03:38 PM, Joseph Salisbury wrote: > On 05/06/2016 03:13 PM, Boris Ostrovsky wrote: >> On 05/06/2016 02:48 PM, Thomas Gleixner wrote: >>> >>> Yuck. That dies with a divide error. And that looks like XEN is supplying >>> crap >>> data in the CPUID. >> Joe, do you have >> >> ed6069b xen/apic: Provide Xen-specific version of cpu_present_to_apicid >> APIC op >> >> -boris > Yes the commit is in the 4.4 based Ubuntu kernel. This bug also happens > with the vanilla 4.6-rc5 kernel, which also has that commit.
Can you post guest's cpuid -1 -r ? (I guess after you verify Thomas' patch) Thanks. -boris