RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:

avahi-daemon falls into an infinite loop sending out certain messages repeatedly (there are several 100 messages per second announcing the available CUPS queues) and does not listen any more to requests (loop does not go through the code for listening). Therefore avahi-discover cannot connect and also CUPS is not able to unregister its printers on shutdown. This leaves avahi-daemon continue to spin and announce CUPS queues.

This happens frequently at boot when you have a dozen or more CUPS queues (which get announced by avahi).

I have found a fix on the Avahi upstream mailing list:

http://lists.freedesktop.org/archives/avahi/2012-September/002188.html

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

avahi-0.6.31-13.el7 (from RHEL7 snapshot 11)

The packet storm caused by avahi-daemon killed all my wireless access points and WiFi networks.

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Still happening on RHEL7 RC.

Thanks for providing link to the patch.

http://pkgs.devel.redhat.com/cgit/rpms/avahi/commit/?h=rhel-7.2&id=884817056ce5912fae18e0ad597b147acd4f09df -> MODIFIED

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.

https://rhn.redhat.com/errata/RHBA-2015-2149.html