Messages in this thread | | | Date | Tue, 8 Apr 2014 10:53:29 +0800 | From | Fengguang Wu <> | Subject | Re: [visorchipset] invalid opcode: 0000 [#1] PREEMPT SMP |
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Hi Benjamin,
> Fengguang, > > I ran your script against freshly-checked-out source from staging-next, and was not able to reproduce the error with it. My boot log is attached. I noticed that your log did not have "Hypervisor detected: KVM" in the trace. The KVM options in your script also differ substantially from the ones shown at the end of your trace...
> When I reran your script with the "-cpu Haswell,+smep,+smap" option I was able to get the same result as you. IMHO KVM should not be setting this bit if it's emulating bare metal.
Sorry.. We tried to provide a simplified reproduce script and in your case, it has a significant mismatch with the real KVM options. We'll fix it, thanks for pointing it out!
Thanks, Fengguang
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