Bug 695180

Summary: virsh save guest meet unexpected failed and selinux warning for cannot lookup default selinux label for the save file
Product: Red Hat Enterprise Linux 6 Reporter: Vivian Bian <vbian>
Component: libvirtAssignee: Laine Stump <laine>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.1CC: dallan, dyuan, eblake
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: 2011-06-21 03:28:53 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
/var/log/messages and LIBVIRT_DEBUG=1 LIBVIRT_LOG_FILTERS="1:util 1:libvirt 1:qemu 1:remote" debug info
none
/var/log/libvirt/qemu/guest.log none

Description Vivian Bian 2011-04-11 03:44:23 UTC 
Description of problem:
On one of our testing machine , always failed to save a running guest . Tried both "setenforce 0" and "setenforce 1" will always fail to save the guest , and encounter selinux warning in /var/log/messages log 

Version-Release number of selected component (if applicable):
libvirt-0.8.7-16.el6.x86_64
qemu-kvm-0.12.1.2-2.153.el6.x86_64
kernel-2.6.32-125.el6.x86_64

How reproducible:
an occasional situation to meet this problem 

Steps to Reproduce:
1. # setenforce 1
2. # virsh start guest 
3. # virsh save guest /tmp/guest.save
4. # virsh destroy guest
5. # getenforce 0
6. # virsh start guest
7. # virsh save guest /tmp/guest.save
  
Actual results:
error: Failed to save domain local to /tmp/local.save
error: operation failed: domain save job: unexpectedly failed


Expected results:


Additional info:
# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/mpathap5   97G   51G   41G  56% /
tmpfs                 990M  376K  990M   1% /dev/shm
Comment 1 Vivian Bian 2011-04-11 03:45:05 UTC 
Created attachment 491137 [details]
/var/log/messages and LIBVIRT_DEBUG=1 LIBVIRT_LOG_FILTERS="1:util 1:libvirt 1:qemu 1:remote"  debug info
Comment 3 RHEL Program Management 2011-04-11 06:00:25 UTC 
Since RHEL 6.1 External Beta has begun, and this bug remains
unresolved, it has been rejected as it is not proposed as
exception or blocker.

Red Hat invites you to ask your support representative to
propose this request, if appropriate and relevant, in the
next release of Red Hat Enterprise Linux.
Comment 4 Vivian Bian 2011-04-11 07:34:01 UTC 
there is no AVC audit errors , and it is not a high reproducible bug to all of the machines , so it is not a Testblocker . QA suggest fix it on 6.2
Comment 5 Laine Stump 2011-04-18 20:41:43 UTC 
I don't see any errors in the log related to selinux. The only error I see is this:

qemuDomainWaitForMigrationComplete:4662 : operation failed: domain save job: unexpectedly failed

It's possible there is a more revealing message in the domain's qemu log file (/var/log/libvirt/qemu/domainname.log). Can you attach that file?

Also, unless there really is an error log in /var/log/messages that mentions selinux, we should change the summary to be more appropriate.
Comment 6 Vivian Bian 2011-04-19 06:08:13 UTC 
Created attachment 493089 [details]
/var/log/libvirt/qemu/guest.log
Comment 7 Laine Stump 2011-06-03 21:10:33 UTC 
It's still unclear exactly what the problem is here.