Description of problem:


Version-Release number of selected component (if applicable):
kvm-83-215.el5

How reproducible:
sometimes

Steps to Reproduce:
1. boot guest with the following cmd:
/usr/libexec/qemu-kvm -drive file=/root/win2008r2-64-virtio.bak,index=0,if=virtio,media=disk,cache=none,format=qcow2,boot=on -net nic,vlan=0,model=virtio,macaddr=9a:2d:20:42:2a:60 -net tap,vlan=0,script=/usr/scripts/qemu-ifup-switch,downscript=no -m 2048 -smp 2,cores=1,threads=1,sockets=2 -cpu qemu64,+sse2 -vnc :0  -rtc-td-hack -M rhel5.6.0 -usbdevice tablet -boot c -monitor stdio -drive file=/root/storage.qcow2,index=1,media=disk
2. open cmd to issue command
3.
  
Actual results:
the output is uppercase, but host is lowercase.

Expected results:


Additional info:
1. Press CapsLk key to switch between lowercase and uppercase several times, the guest and host will sync.

2. guest:
Win2008R2

3. host:
kernel: 2.6.18-232.el5

cpu:
processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz
stepping	: 4
cpu MHz		: 1600.000
cache size	: 8192 KB
physical id	: 0
siblings	: 8
core id		: 3
cpu cores	: 4
apicid		: 7
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr sse4_1 sse4_2 popcnt lahf_lm