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 1334459 - rt: Use IPI to trigger RT task push migration instead of pulling
Summary: rt: Use IPI to trigger RT task push migration instead of pulling
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: kernel-rt
Version: 7.3
Hardware: x86_64
OS: Linux
high
medium
Target Milestone: rc
: ---
Assignee: Luis Claudio R. Goncalves
QA Contact: Jiri Kastner
URL:
Whiteboard:
Depends On: 1332593
Blocks: 1274397
TreeView+ depends on / blocked
 
Reported: 2016-05-09 16:26 UTC by Marcel Kolaja
Modified: 2016-06-23 16:31 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
In order to avoid thundering herd access to run-queue locks when performing task migration, a three-commit series was backported from upstream. By sending an IPI from an underutilized core to an overloaded core, requesting that the overloaded core push the task to the requesting core, the issue was avoided. The rhel-rt 7.2 and MRG kernels were missing one of the commits from the series.
Clone Of: 1332593
Environment:
Last Closed: 2016-06-23 16:31:00 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1301 0 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2016-06-23 20:15:04 UTC

Description Marcel Kolaja 2016-05-09 16:26:29 UTC 
This bug has been copied from bug #1332593 and has been proposed
to be backported to 7.2 z-stream (EUS).
Comment 7 errata-xmlrpc 2016-06-23 16:31:00 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://access.redhat.com/errata/RHSA-2016:1301
Note You need to log in before you can comment on or make changes to this bug.