1388855 – lots of errors in journal when try to install a guest machine with two cpus specified

Bug 1388855 - lots of errors in journal when try to install a guest machine with two cpus specified

Summary: lots of errors in journal when try to install a guest machine with two cpus s...

Keywords:
Status:	CLOSED NOTABUG
Alias:	None
Product:	Fedora
Classification:	Fedora
Component:	qemu
Sub Component:
Version:	25
Hardware:	Unspecified
OS:	Unspecified
Priority:	unspecified
Severity:	unspecified
Target Milestone:	---
Assignee:	Fedora Virtualization Maintainers
QA Contact:	Fedora Extras Quality Assurance
Docs Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+	depends on / blocked

Reported:	2016-10-26 10:12 UTC by lnie
Modified:	2017-02-16 19:31 UTC (History)
CC List:	15 users (show)
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed:	2017-02-16 19:31:23 UTC
Type:	Bug
Dependent Products:

Attachments	(Terms of Use)
journal (248.86 KB, text/x-vhdl) 2016-10-26 10:12 UTC, lnie	no flags	Details
View All Add an attachment (proposed patch, testcase, etc.)

Description lnie 2016-10-26 10:12:37 UTC

Created attachment 1214243 [details]
journal

Description of problem:
Oct 26 17:59:22 localhost.localdomain kernel: kvm [2836]: vcpu1, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x34
Oct 26 17:59:41 localhost.localdomain kernel: kvm [2836]: vcpu1, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x606
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x60d
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3f8
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3f9
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3fa
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x630
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x631
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x632
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x611
Oct 26 17:59:42 localhost.localdomain kernel: kvm [2836]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x639

Version-Release number of selected component (if applicable):
kernel-4.8.3-300.fc25.x86_64
qemu-kvm-2.7.0-6.fc25.x86_64

How reproducible:
always

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 lnie 2016-10-27 02:39:58 UTC

More informations:
Got similar errors even if I specify one vcpu for the virtual machine,
Oct 27 10:22:17 localhost.localdomain virtlogd[2627]: End of file while reading data: Input/output error
Oct 27 10:22:31 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x34
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x606
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x60d
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3f8
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3f9
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3fa
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x630
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x631
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x632
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x60d
Oct 27 10:22:49 localhost.localdomain kernel: kvm [2634]: vcpu0, guest rIP: 0xffffffff8805d722 unhandled rdmsr: 0x3f8

This is not a new bug,as it also happened before I updated the kernel and kvm:

Sep 28 12:56:11 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x34
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x606
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x60d
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x3f8
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x3f9
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x3fa
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x630
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x631
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x632
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x60d
Sep 28 12:56:39 localhost.localdomain kernel: kvm [3623]: vcpu0, guest rIP: 0xffffffffab05e722 unhandled rdmsr: 0x3f8

Comment 2 Cole Robinson 2017-02-16 19:31:23 UTC

Thanks for the report. My understanding is that these messages are generally harmless, it's just an indication that kvm isn't emulating a particular MSR. So if your guest is functioning correctly I don't think it's anything to worry about

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