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** Changed in: qemu
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1598029

Title:
  failed to boot a customized kernel if emulating Broadwell/Skylake

Status in QEMU:
  Incomplete

Bug description:
  Hardware: X86-64, Intel(R) Core(TM) i7-6500U( Skylake)
  OS: Linux Mint 18
  Host Kernel: 4.5.7 + PaX/Grsecurity
  Qemu: QEMU emulator version 2.5.0 (Debian 1:2.5+dfsg-5ubuntu10.2)

  [Reproduction Steps]
  1, Install a Debian 8 in the guest
  2, Install a customized kernel( using same config to Debian 8)
  3, Reboot:
  qemu-system-x86_64 -hda debian8-test.img -boot d  -m 2048 -enable-kvm -usb 
-usbdevice tablet -net nic -net tap,ifname=tap0,script=no -cpu Broadwell -smp 2

  or

  qemu-system-x86_64 -hda debian8-test.img -boot d  -m 2048 -enable-kvm
  -usb -usbdevice tablet -net nic -net tap,ifname=tap0,script=no -cpu
  host -smp 2

  [Actual Result]  
  kernel panic or can't login in the system

  [Workaround]
  qemu-system-x86_64 -hda debian8-test.img -boot d  -m 2048 -enable-kvm -usb 
-usbdevice tablet -net nic -net tap,ifname=tap0,script=no -cpu Haswell -smp 2

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