Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

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.

Bug 1325870

Summary:	dbus-daemon fails to close correct file descriptors
Product:	Red Hat Enterprise Linux 7	Reporter:	Siteshwar Vashisht <svashisht>
Component:	dbus	Assignee:	David King <dking>
Status:	CLOSED ERRATA	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	high	Docs Contact:	Milan Navratil <mnavrati>
Priority:	high
Version:	7.2	CC:	alanm, ayadav, chorn, hmatsumo, jwright, kcleveng, mcepl, mkolbas, mnavrati, mpoole, neil, ssahoo, tpelka, vagrawal, vbenes
Target Milestone:	rc	Keywords:	Regression, ZStream
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	dbus-1.6.12-14.el7	Doc Type:	Release Note
Doc Text:	The dbus-daemon service no longer becomes unresponsive due to leaking file descriptors Previously, the dbus-daemon service incorrectly handled multiple messages containing file descriptors if they were received in a short time period. As a consequence, dbus-daemon leaked file descriptors and became unresponsive. A patch has been applied to correctly handle multiple file descriptors from different messages inside dbus-daemon. As a result, dbus-daemon closes and passes file descriptors correctly and no longer becomes unresponsive in the described situation.	Story Points:	---
Clone Of:
Clones:	1348830 (view as bug list)		Environment:
Last Closed:	2016-11-04 06:41:05 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1203710, 1348830, 1364088

Description Siteshwar Vashisht 2016-04-11 12:06:28 UTC

Description of problem:
dbus-daemon fails to close correct file descriptors.

Version-Release number of selected component (if applicable):
dbus-1.6.12-11.el7.x86_64

How reproducible:
Always

Actual results:
'dbus-daemon: Failed to close file descriptor: Could not close fd' messages appear in journal logs


Expected results:
Correct file descriptors should be closed.

Additional info:

This is a known bug which was fixed through https://cgit.freedesktop.org/dbus/dbus/commit/?id=07f4c12efe3b9bd45d109bc5fbaf6d9dbf69d78e

Comment 3 neil 2016-05-03 19:58:49 UTC

We're hitting this bug often enough that dbus-daemon hits the open fd limit (2144 by default). Once this happens, dbus-daemon starts chewing through 100% CPU time of a core until dbus-daemon is restarted.

In a cluster of 8 machines with the same workload and same uptime we've observed a wide variance in the number of "leaked" fds per hour, ranging from ~0.42 fds/hour to 1.38 fds/hour. However, all machines are leaking fds over time, just at different rates.

Observed with dbus-1.6.12-13.el7.x86_64.

Comment 6 neil 2016-05-04 14:37:49 UTC

It would be ideal if this could be fixed in time for RHEL 7.3.

Comment 19 errata-xmlrpc 2016-11-04 06:41:05 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.

https://rhn.redhat.com/errata/RHBA-2016-2453.html