[Qemu-devel] [Bug 497273] Re: winxp.64 fails to install in -rc2 with kvm

[Ryan Harper]

Yeah, I can still reproduce with 0.12.4 on a fedora11 host.   Also
broken with qemu.git HEAD as of today as well.  On the f11 host kvm
modules, reverting the referenced commit doesn't help.

-- 
winxp.64 fails to install in -rc2 with kvm
https://bugs.launchpad.net/bugs/497273
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Status in QEMU: New

Bug description:
Host: Fedora11, 64-bit
Kernel: 2.6.30.9-96.fc11.x86_64
KVM modules:

# modinfo kvm
filename:       /lib/modules/2.6.30.9-96.fc11.x86_64/kernel/arch/x86/kvm/kvm.ko
license:        GPL
author:         Qumranet
srcversion:     23A53503602E48217AC12F1
depends:        
vermagic:       2.6.30.9-96.fc11.x86_64 SMP mod_unload 
parm:           oos_shadow:bool
parm:           msi2intx:bool

]# modinfo kvm-intel
filename:       
/lib/modules/2.6.30.9-96.fc11.x86_64/kernel/arch/x86/kvm/kvm-intel.ko
license:        GPL
author:         Qumranet
srcversion:     5DD68E0B8497DC4518A8797
depends:        kvm
vermagic:       2.6.30.9-96.fc11.x86_64 SMP mod_unload 
parm:           bypass_guest_pf:bool
parm:           enable_vpid:bool
parm:           flexpriority_enabled:bool
parm:           enable_ept:bool
parm:           emulate_invalid_guest_state:bool

Host CPU: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz

Guest commandline: 
sudo ./x86_64-softmmu/qemu-system-x86_64 -L pc-bios -name 'vm1' -monitor stdio 
-drive file=~/work/images/winXP-64.qcow2,if=ide,cache=writeback -net 
nic,vlan=0,model=rtl8139,macaddr=52:54:00:12:34:56 -net user,vlan=0 -m 512 
-cdrom ~/work/isos/en_windows_xp_professional_x64.iso -enable-kvm -redir 
tcp:5000::22

Steps to reproduce:

1. git checkout -b 12rc2 v0.12.0-rc2
2. ./configure --target-list=x86_64-softmmu
3. make
4. qemu-img create -f qcow2 ~/work/images/winXP-64.qcow2 20G
5. sudo ./x86_64-softmmu/qemu-system-x86_64 -L pc-bios -name 'vm1' -monitor 
stdio -drive file=~/work/images/winXP-64.qcow2,if=ide,cache=writeback -net 
nic,vlan=0,model=rtl8139,macaddr=52:54:00:12:34:56 -net user,vlan=0 -m 512 
-cdrom ~/work/isos/en_windows_xp_professional_x64.iso -enable-kvm -redir 
tcp:5000::22

Guest boots XP.64 installer, loads some files and then hangs at "Starting 
Windows XP"

Reverting to -rc1 and XP installs just fine.  Git bisect points to:

commit 066263f37701687c64af9d8825e3376d069ebfd4
Author: Andre Przywara <address@hidden>
Date:   Mon Dec 7 11:58:02 2009 +0100

cpuid: Fix multicore setup on Intel
    

Reverting this fixes the problem.

Different kvm modules seem to affect this install as well.  Switching 
to different kvm-kmod packages:

2.6.32 modules work fine with 0.12.0-rc2, no issues at all

2.6.30 modules fail, reverting the above commit doesn't help, seems to 
be in the same boat as 2.6.28 modules

2.6.31.5 (roughly equivalent to Fedora11 modules) work on -rc1, fail on
rc2, reverting above commit fixes -rc2.