Bug 561528

= Description =

While executing the provided python test script [1] noted from Richards blog post [2], it seems that the command hangs.  I've been seeing similar issues while attempting virt installs on this F-12 system lately but haven't managed to pinpoint the trouble.  So far, this is the only reproduce-able test case I've found.

[1] https://fedorahosted.org/pipermail/autoqa-devel/attachments/20100201/0d29652b/attachment.py
[2] http://rwmj.wordpress.com/2010/02/01/libguestfs-python-example/

= Software installed = 

This is a F-12 system (plus updates)

 * gpxe-roms-qemu-0.9.7-6.fc12.noarch
 * libguestfs-1.0.75-1.fc12.x86_64
 * libvirt-0.7.5-3.fc12.x86_64
 * python-libguestfs-1.0.75-1.fc12.x86_64
 * qemu-common-0.12.1.2-3.fc12.x86_64
 * qemu-img-0.12.1.2-3.fc12.x86_64
 * qemu-kvm-0.12.1.2-3.fc12.x86_64
 * qemu-system-x86-0.12.1.2-3.fc12.x86_64

= Steps to reproduce = 
1) Run libguestfs-test-tool 

= Actual Results =

# libguestfs-test-tool 
===== Test starts here =====
LIBGUESTFS_DEBUG=1
new guestfs handle 0xc8d120
library version: 1.0.75
guestfs_get_append: (null)
guestfs_get_autosync: 0
guestfs_get_memsize: 500
guestfs_get_path: /usr/lib64/guestfs
guestfs_get_qemu: /usr/bin/qemu-kvm
guestfs_get_verbose: 1
Launching appliance, timeout set to 120 seconds.
looking for supermin appliance in /usr/lib64/guestfs
null_vmchannel_sock = 58845
accept_from_daemon: 0xc8d120 g->state = 0
/usr/bin/qemu-kvm \
    -drive file=/tmp/libguestfs-test-tool-sda-ojUUe4,cache=off,if=ide \
    -drive file=/tmp/libguestfs-test-tool-iso-arbZsP,cache=off,if=ide \
    -m 500 \
    -no-reboot \
    -nographic \
    -serial stdio \
    -no-hpet \
    -net user,vlan=0,net=10.0.2.0/8 \
    -net nic,model=virtio,vlan=0 \
    -kernel /tmp/libguestfsO3m10i/kernel \
    -initrd /tmp/libguestfsO3m10i/initrd \
    -append 'panic=1 console=ttyS0 udevtimeout=300 noapic acpi=off cgroup_disable=memory selinux=0 guestfs_vmchannel=tcp:10.0.2.2:58845 guestfs_verbose=1 '
chardev: opening backend "stdio" failed
qemu: could not open serial device 'stdio': Invalid argument
Alarm clock