Bug 967126

Summary:	virsh: qemu console too late
Product:	[Community] Virtualization Tools	Reporter:	Ferenc Wágner <wferi>
Component:	libvirt	Assignee:	Libvirt Maintainers <libvirt-maint>
Status:	CLOSED WORKSFORME	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	crobinso, rbalakri
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-04-09 23:29:50 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Ferenc Wágner 2013-05-24 20:24:08 UTC

The first bunch of serial console messages is skipped if the domain is started via "virsh create domain.xml --console". For example a direct Linux kernel boot looks like:

$ sudo virsh create domain.xml --console --autodestroy
Domain dom created from domain.xml
Connected to domain dom
Escape character is ^]
[    0.072574] Freeing SMP alternatives: 8k freed
[    0.073859] ACPI: Core revision 20110623
[    0.076735] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
[    0.078352] CPU0: Intel QEMU Virtual CPU version 1.1.2 stepping 03
[...]

The loss can be reduced by quickly hitting a key after the "Escape" message. Qemu itself does not exhibit this behaviour. It's not specific to Linux either, I first noticed the problem through a missing bootloader menu, which appeared just fine after a Ctrl-L forcing a full screen redraw.

Libvirt (virsh) version 0.9.12.

Comment 1 Cole Robinson 2016-04-09 23:29:50 UTC

Sorry this didn't receive a timely response. I just tried this with a direct kernel boot and <bios useserial='yes'/>, and the console connected before even seabios started showing any output. So I suspect this is fixed with recent libvirt

If anyone can still reproduce, please file a new bug