Bug 808661

Summary:	Only one can be received when sent multiple duplicate key-codes to the guest.
Product:	Red Hat Enterprise Linux 6	Reporter:	lei wang <leiwan>
Component:	libvirt	Assignee:	Gunannan Ren <gren>
Status:	CLOSED NOTABUG	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.4	CC:	acathrow, ajia, dallan, dyasny, dyuan, gsun, mzhan, rwu, whuang
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-04-03 16:37:16 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description lei wang 2012-03-31 05:13:21 UTC

Description of problem: 
Only one can be received when sent multiple duplicate key-codes to the guest.

Version-Release number of selected component (if applicable):
kernel-2.6.32-251.el6
libvirt-0.9.10-6.el6
netcf-0.1.9-2.el6
qemu-kvm-0.12.1.2-2.251.el6

How reproducible:
always

Steps to Reproduce:
1.#virsh send-key<domain>  0x10 0x11 0x10
	==>the "qwq" will be shown on guest console, it's a expected result.
2.#virsh send-key<domain>  16 17 16
	==>the "qwq" will be shown on guest console, it's a expected result.
3.#virsh send-key<domain>  0x10 0x10 0x10
	==>the "q" will be shown on guest console, it's a unexpected result.
4.#virsh send-key<domain>  16 16 16
	==>the "q" will be shown on guest console, it's a unexpected result.

Actual results:
Guest console can receive multiple duplicate key-codes.

Expected results:
Only one can be received when sent multiple duplicate key-codes to the guest.

Comment 3 Gunannan Ren 2012-04-03 13:48:53 UTC

The sendkey command in qemu is to emulate keyboard events. Use - to press several keys simultaneously for combination key events(such as ctl-alt-f1). If you want to press multiple duplicated key-codes, the effect is the same as the case that only one key is pressed, so it makes sense to give only one letter in your cases in guest.

BTW, when I tried it by hand in qemu-kvm monitor console, the result is like what I said above. so I don't think this is a bug in both libvirt and qemu.
If I am wrong, this is not a libvirt bug at least.

Comment 4 Dave Allan 2012-04-03 13:56:11 UTC

Guannan, that makes sense.  So what would the correct command be to send multiple keystrokes, for example, if a user wanted to send the string "qqq" or "reboot" ?

Comment 5 Gunannan Ren 2012-04-03 14:08:25 UTC

I think if we still want to use sendkey to do that, we could invoke the command with the same letter multiple times.like the follows for "qqq"
virsh send-key <domain> 0x10
virsh send-key <domain> 0x10
virsh send-key <domain> 0x10
Or use virtio-serial for data messaging between host and guest.

Comment 6 Dave Allan 2012-04-03 16:37:16 UTC

Thanks, Guannan.  Given that, I am closing as NOTABUG.