Bug 737359 - vm guest lost internet connection - the host still have it
Summary: vm guest lost internet connection - the host still have it
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: qemu
Version: 15
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Fedora Virtualization Maintainers
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2011-09-11 12:20 UTC by melchiaros
Modified: 2013-01-10 00:18 UTC (History)
18 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-05-28 23:51:56 UTC


Attachments (Terms of Use)
logs (2.81 MB, application/x-gzip)
2011-09-11 12:52 UTC, melchiaros
no flags Details

Description melchiaros 2011-09-11 12:20:25 UTC
Description of problem:
Sometimes all my guest vm´s got lost there internet connections comletely. The host (fedora15) still has it.



Version-Release number of selected component (if applicable):

[user@localhost ~]$ rpm -qa | grep kvm
qemu-kvm-0.14.0-7.fc15.x86_64
[user@localhost ~]$ rpm -qa | grep qemu
gpxe-roms-qemu-1.0.1-4.fc15.noarch
qemu-system-x86-0.14.0-7.fc15.x86_64
qemu-kvm-0.14.0-7.fc15.x86_64
qemu-common-0.14.0-7.fc15.x86_64
qemu-img-0.14.0-7.fc15.x86_64
[user@localhost ~]$ rpm -qa | grep kernel
arm-gp2x-linux-kernel-headers-2.6.12.0-5.fc15.noarch
kernel-debug-2.6.40.4-5.fc15.x86_64
kernel-headers-2.6.40.4-5.fc15.x86_64
kernel-devel-2.6.40.3-0.fc15.x86_64
abrt-addon-kerneloops-2.0.3-3.fc15.x86_64
kernel-devel-2.6.40.4-5.fc15.x86_64
kernel-2.6.40.3-0.fc15.x86_64
kernel-debug-2.6.40.3-0.fc15.x86_64
kernel-2.6.38.6-26.rc1.fc15.x86_64
kernel-2.6.40.4-5.fc15.x86_64
[user@localhost ~]$ 


How reproducible:
sometimes

Steps to Reproduce:
1.have some vm´s running under kvm fedora15
2.see breaking the internaet connections of all guests(more or less at the same time)
3.see that the host has still internet connection.
  
Actual results:
Breaking internet connections for the guests
Expected results:

Stable internet connections for the guests.
Additional info:

Comment 1 melchiaros 2011-09-11 12:52:26 UTC
Created attachment 522608 [details]
logs

Comment 2 Fedora Admin XMLRPC Client 2012-03-15 17:53:53 UTC
This package has changed ownership in the Fedora Package Database.  Reassigning to the new owner of this component.

Comment 3 Cole Robinson 2012-05-28 23:51:56 UTC
From your logs, it looks like you are using libvirt's default virtual network. This mode relies on non persistent iptables rules added when libvirtd is started. The problem is likely that iptables was restarted, or another tool like system-config-firewall made changes to iptables that wiped out libvirt networking rules. This is a long known issue unfortunately :(

Work has already started for F18 timeframe to have libvirtd work with firewalld to store these rules in some persistent manner, effectively fixing this issue. But it won't ever make F15 (which is end-of-life in a month).

That said, I'm just assuming that's the issue you were hitting :) If you think I missed something and you are still encountering this on F16 or later, please reopen this report.


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