Bug 728654

Summary:	libvirtd.conf error causes libvirtd to exit silently
Product:	Red Hat Enterprise Linux 6	Reporter:	Dave Allan <dallan>
Component:	libvirt	Assignee:	Peter Krempa <pkrempa>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.2	CC:	dyuan, mzhan, rwu, veillard, whuang
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	libvirt-0.9.4-5.el6	Doc Type:	Bug Fix
Doc Text:	Cause: Error checks on early libvirtd startup did not report errors verbosely. Consequence: Broken configuration file or other early errors while libvirtd was starting up caused the daemon to exit silently only setting the process return value to indicate error. This confused the users, as no message was printed and the process return code has to be checked manualy. Fix: Error handling messages were added to the early start phases of libvirtd. Result: Errors during start are now printed and logged.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-12-06 11:23:41 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:

Description Dave Allan 2011-08-06 04:38:04 UTC

Starting libvirtd with a configuration file containing an unterminated string for log_outputs causes libvirtd to exit silently.

After adding the following to libvirtd.conf

log_outputs="1:file:/var/log/libvirt/libvirt_debug.log

libvirtd, even when started from the commandline with -v, exited silently; nothing in the logs, nothing on stdout to indicate what was wrong.

Comment 4 dyuan 2011-08-23 09:18:55 UTC

Verified PASS with libvirt-0.9.4-5.el6, reproduced this bug with libvirt-0.9.4.4.el6.

# service libvirtd restart
Stopping libvirtd daemon:                                  [  OK  ]
Starting libvirtd daemon: 05:10:16.742: 11484: info : libvirt version: 0.9.4, package: 5.el6 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>, 2011-08-22-12:26:05, x86-009.build.bos.redhat.com)
05:10:16.742: 11484: error : main:1394 : Can't load config file '/etc/libvirt/libvirtd.conf'
                                                           [FAILED]

# libvirtd
05:10:35.896: 11488: info : libvirt version: 0.9.4, package: 5.el6 (Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>, 2011-08-22-12:26:05, x86-009.build.bos.redhat.com)
05:10:35.896: 11488: error : main:1394 : Can't load config file '/etc/libvirt/libvirtd.conf'

Comment 5 Peter Krempa 2011-11-11 09:52:47 UTC

    Technical note added. If any revisions are required, please edit the "Technical Notes" field
    accordingly. All revisions will be proofread by the Engineering Content Services team.
    
    New Contents:
Cause:
Error checks on early libvirtd startup did not report errors verbosely.

Consequence:
Broken configuration file or other early errors while libvirtd was starting up caused the daemon to exit silently only setting the process return value to indicate error.
This confused the users, as no message was printed and the process return code has to be checked manualy.

Fix:
Error handling messages were added to the early start phases of libvirtd.

Result:
Errors during start are now printed and logged.

Comment 6 errata-xmlrpc 2011-12-06 11:23:41 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2011-1513.html