On 04/11/2016 16:22, Laszlo Ersek wrote: >> > What does this *KVM internal error. Suberror: 1* mean? > The key message is "emulation failure" -- it means that the processor > exits to the hypervisor (KVM) because it finds some code that it cannot > execute in guest mode natively, so the hypervisor needs to emulate it. > And, this emulation fails. The reasons can be: > - the code is valid, but KVM lacks the emulation code for it, > - the code is actually garbage (not code) -- there was some corruption > in the guest (the location used to contain code but it was corrupted, or > the guest jumped to non-code data). > > Usually the register dump contains a short hexadecimal snippet from the > instruction stream (near Code=...), pinpointing the byte that caused the > problem. However, in this case, all we have is question marks, and this > is the very first time I see those. That's why I CC'd Paolo and Radim :)
The question marks usually mean that the page tables do not map a page at that address, but I don't know offhand why KVM would fail emulation instead of triple-faulting. Try "info tlb" to dump the page tables (huge output of course, you may want to use the GTK+ backend which has scrollable consoles). Paolo _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
