Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: rtkit (Ubuntu Focal)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1875665
Title:
rtkit-daemon[*]: Failed to make ourselves RT: Operation not permitted
after upgrade to 20.04
Status in linux package in Ubuntu:
Confirmed
Status in rtkit package in Ubuntu:
Confirmed
Status in linux source package in Focal:
Confirmed
Status in rtkit source package in Focal:
Confirmed
Bug description:
SRU Justification
Impact: CONFIG_RT_GROUP_SCHED was enabled in focal, except for the
lowlatency kernel since we expected most RT users to use that kernel.
However we are getting RT regressions with the generic kernel. Digging
deeper into this option, it seems to be pretty specialized and to
require quite a bit of workload-specific configuration/tuning to be
useful, so it doesn't really seem to make sense for a general-purpose
kernel.
Fix: Turn this option back off.
Test Case: See comment #4.
Regression Potential: This was turned on to support some docker
functionality, so this functionality will no longer be available.
We've had this option off for all releases prior to focal, so this
seems acceptable.
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These errors started right after upgrading to 20.04.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: rtkit 0.12-4
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 28 10:31:43 2020
InstallationDate: Installed on 2019-06-18 (315 days ago)
InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416)
ProcEnviron:
TERM=tmux-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: rtkit
UpgradeStatus: Upgraded to focal on 2020-04-21 (6 days ago)
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