[Qemu-devel] [Bug 855664] Re: 64-bit windows guest cannot boot up

[Yongjie Ren]

same reason as this bug:  https://bugs.launchpad.net/qemu/+bug/882358
This is because kvm is not enabled when starting guest by default even if I add 
KVM support when configuring qemu.
Now it got fixed by the following commit.

author Marcelo Tosatti <address@hidden>
Thu, 27 Oct 2011 20:34:42 +0800 (10:34 -0200)
committer Marcelo Tosatti <address@hidden>
Thu, 27 Oct 2011 20:34:42 +0800 (10:34 -0200)
commit 7879db7e9c09b92d9af1c143fbe2cc212ec89e4b
Revert "qemu-kvm: set default accelerator via target.conf"

This reverts commit a5c40eb1aa929a03157252db7337bc4ddd2435be.

Jan says:

"Unless you fully install qemu, that conf is not picked up (or an older
version is used). I'd still like to see this working with qemu started
from a build directory..."

Signed-off-by: Marcelo Tosatti <address@hidden>


** Changed in: qemu
       Status: New => Fix Released

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/855664

Title:
  64-bit windows guest cannot boot up

Status in QEMU:
  Fix Released

Bug description:
  qemu.git (memory/queue branch) commit: 
6cc7686696f73ae87cadef4450776a488b0e0c8b
  or qemu.git (master branch) commit: 8843cf40c0f482949e6ae9d0119e45d6b96fe890
  kvm.git commit: 7f914d61cd2156e34a7852462bb4932621f33a34

  64-bit Windows guest cannot boot up, but 32-bit windows guest can boot
  up successfully. For Win7, it will show blue scream of death when
  booting up. For Windows XP, the guest hangs without blue screen when
  booting up. But when I use qemu-kvm.git with commit a040d28b, I won't
  meet this issue. I did the comparative test in the same box and using
  the same command line to create a guest.

  I found this bug in memory/queue branch of qemu.git on September 21st.
  As some codes in memory branch were merged into master branch, the
  master tree of qemu.git also has this issue now.

  I found the following git log in master tree. And that merger maybe 
introduced this issue in master tree.
  commit 36f490b176afab3096e9c2877b365354f67e269d
  Merge: ebffe2a 0d95952
  Author: Anthony Liguori <address@hidden>
  Date: Fri Oct 14 10:44:52 2011 -0500

      Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into
  staging

  Reproduce steps:
  ----------------
  1. to create a guest: qemu-system-x86_64 -m 1024 -smp 2  -hda 
/root/win7-64bit.img

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/855664/+subscriptions