** Description changed:

- I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net 
nic,model=e1000 -serial mon:stdio -m 3072 -drive 
format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal 
hypervisor.
+ I used this qemu-system-x86_64 -enable-kvm -display sdl -cpu host -net 
nic,model=e1000 -serial mon:stdio -m 3072 -drive 
format=raw,file=var/run/seoul-net.img -machine q35 to emulate a personal 
hypervisor (https://github.com/ptokponnon/NOVA/tree/cached_cow_refined).
  But since my ubuntu's kernel was upgraded from 5.0.0-29-generic to 
5.0.0-32-generic, the hypervisor crashes during boot time and reboots.
  When I tried to debug, I discovered that it throws a page fault in the kernel 
on a specific address while the address is well mapped (checked via info mem 
and info tlb).
  I have frozen the kernel on 5.0.0-29 to continue running my hypervisor. The 
5.0.0-31-generic version has also the same problem. I don't know for the other 
versions.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-5.0.0-32-generic 5.0.0-32.34~18.04.2
  ProcVersionSignature: Ubuntu 5.0.0-32.34~18.04.2-generic 5.0.21
  Uname: Linux 5.0.0-32-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sun Oct 27 21:37:53 2019
  InstallationDate: Installed on 2019-09-14 (43 days ago)
  InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 
(20190805)
  SourcePackage: linux-signed-hwe
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1850076

Title:
  Kvm does not work properly when emulating host cpu with qemu-system-
  x86_64

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