Bug 539099 - KVM: host lockup upon virt-install
Summary: KVM: host lockup upon virt-install
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kvm
Version: 5.4
Hardware: x86_64
OS: Linux
Target Milestone: rc
: ---
Assignee: Marcelo Tosatti
QA Contact: Virtualization Bugs
Depends On:
Blocks: Rhel5KvmTier2
TreeView+ depends on / blocked
Reported: 2009-11-19 16:47 UTC by gregrwm
Modified: 2013-01-09 22:02 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2010-05-27 18:26:28 UTC

Attachments (Terms of Use)

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

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

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.

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