Second KVM process hangs eating 80-100% CPU on host during startup

[Alex Davis <alex14641@yahoo.com>]

Host software:
Linux 2.6.24.4
KVM 65 (I am using the kernel modules from this release).
X11 7.2 from Xorg
SDL 1.2.13
GCC 4.1.1
Glibc 2.4

Host hardware:
Asus P5B Deluxe (P965 chipset based) motherboard
4 GB RAM
Intel E6700 CPU

Guest software:
Slackware 12.0 installed from CD-ROM.

Command used to first KVM instance:
/usr/local/bin/qemu-system-x86_64 -hda /spare/vdisk1.img -cdrom /dev/cdrom -boot c -m 384 -net
nic,macaddr=DE:AD:BE:EF:11:29 -net tap,ifname=tap0,script=no &

Command used to start second KVM instance:
/usr/local/bin/qemu-system-x86_64 -hda /spare/vdisk2.img -cdrom /dev/cdrom -boot c -m 384 -net
nic,macaddr=DE:AD:BE:EF:11:30 -net tap,ifname=tap1,script=no &

tap0 and tap1 are bridged on the host. The guest OS was installed on /spare/vdisk1.img, 
which was initially created by /usr/local/bin/qemu-img create -f qcow /spare/vdisk.img 10G
After the guest installation completed, vdisk1 was copied to vdisk2.

The second instance always stops after printing
Checking if the processor honours the WP bit even in supervisor mode... Ok.
It stays hung until I press the return key in the first instance; sometimes clicking in another X
window will wake it up as well. 

This is a test machine so I can test patches (almost) at will.




I code, therefore I am


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