[Spice-devel] Fail to create a printing channel

[Charles.Tsai-蔡清海-研究發展部]

Alon,

	I am running the following script to create the printing channel based on the virtio device framework.
	When the VM is launched, it seems to block somewhere in Qemu.

	If I remove the following two lines, the VM can be launched without any problem.		
	The following two lines basically are used to create the printing channel between the host and guest.

	-chardev spicevmc,id=vdprint,name=vdprint \
	-device virtserialport,chardev=vdprint,name=com.redhat.print.0"

	Can you give me some hits why Qemu does not call spice server to create the printing channel? Is there any 	function in Qemu I need to change so as to create additional channel within the Virtio device?

	Let me know if I made anything wrong with my Qemu's command options. Thanks.
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#!/bin/sh

ARGS="-localtime -spice port=5900,disable-ticketing \
-drive file=/opt/virt/user/Win7_64.cow \
-vga qxl \
-device virtio-serial-pci,multifunction=on \
-chardev spicevmc,id=vdagent,id=vdagent,name=vdagent \
-device virtserialport,chardev=vdagent,name=com.redhat.spice.0 \
-usbdevice tablet -smp 1,cores=2 -m 2048 -enable-kvm -net nic -net user \
-chardev spicevmc,id=vdprint,name=vdprint \
-device virtserialport,chardev=vdprint,name=com.redhat.print.0"