Bug 539099

Summary:	KVM: host lockup upon virt-install
Product:	Red Hat Enterprise Linux 5	Reporter:	gregrwm <rhbugzi>
Component:	kvm	Assignee:	Marcelo Tosatti <mtosatti>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	high	Docs Contact:
Priority:	low
Version:	5.4	CC:	clalance, quintela, tburke, virt-maint, xen-maint, ykaul
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:	2010-05-27 18:26:28 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	580948

Description gregrwm 2009-11-19 16:47:09 UTC

Description of problem:  i had just launched
virt-install -r 500 -w bridge:br0 --accelerate -c rhel-server-5.4-x86_64-dvd.iso --os-variant=rhel5 -n vr5e --disk path=/var/lib/libvirt/images/vr5e,size=5

the host locked up.  on the console amongst iptables log chatter i observed the words "unimplemented perfctr wrmsr".  it was able to change virtual terminals and able to echo characters at the login screens, but unable to login or respond to existing logins.

Version-Release number of selected component (if applicable):
kernel 2.6.18-164.6.1.el5
python-virtinst 0.400.3 5.el5
host:  Sun Fire X2100 M2

How reproducible:  not reproducible.
Actual results:  host lockup.
Expected results:  virt-install success, continued host operation.

Comment 1 Chris Lalancette 2009-11-20 14:45:25 UTC

This actually looks like a KVM bug, so switching it to there.

Chris Lalancette

Comment 2 gregrwm 2009-11-20 21:05:58 UTC

yes kvm.

it just locked up again, this time the machine had been left idle for hours excepting (processes per vanilla rhel5, nagios nrpe, and) one VM, left awaiting input (awaiting a "CD change") (ie waiting for me to _successfully_ download the dvd, another unsolved problem).

what should we do to capture what's happening?

Comment 4 Dor Laor 2010-01-04 12:55:59 UTC

Please supply net-console debug. Can you also re-try it with netfilter disabled (+set /files/etc/sysctl.conf/net.bridge.bridge-nf-call-ip6tables 0
+set /files/etc/sysctl.conf/net.bridge.bridge-nf-call-iptables 0
+set /files/etc/sysctl.conf/net.bridge.bridge-nf-call-arptables 0
)

Comment 5 Marcelo Tosatti 2010-01-07 11:51:33 UTC

Either net console or serial console output, whatever is easier for you.

Comment 7 Marcelo Tosatti 2010-05-04 17:34:36 UTC

Greg,

More information (serial or net console output) is required to diagnose this
problem.

Comment 8 Marcelo Tosatti 2010-05-27 18:26:28 UTC

Closing due to lack of information to debug the problem.

Please reopen if necessary, with console output.