sys-fs/multipath-tools: Disable realtime scheduling for multipathd#1771
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sys-fs/multipath-tools: Disable realtime scheduling for multipathd#1771
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Add a dropin that prevents the service from controlling its own scheduling. On newer Flatcar releases, service ordering seems to have changed and multipathd is able to configure realtime scheduling before systemd tries (and fails) to enable the cpu controller. The dropin is meant to enforce sane behavior, and matches older Flatcar releases where cpu controller was enabled before multipathd tries (and fails) to configure realtime scheduling. Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
ader1990
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Mar 18, 2024
| # if any such process exists then cpu controller can't be enabled. | ||
| # This poses a bit of a dilemma. | ||
| # Block realtime control for the process, but give it highest non-rt priority. | ||
| RestrictRealtime=yes |
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LGTM, worked on my local setup as well.
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Build action triggered: https://github.com/flatcar/scripts/actions/runs/8346002605 |
Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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Added a changelog. |
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Not doing a mantle test case for now as this is unlikely to regress. |
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sys-fs/multipath-tools: Disable realtime scheduling for multipathd Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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sys-fs/multipath-tools: Disable realtime scheduling for multipathd Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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sys-fs/multipath-tools: Disable realtime scheduling for multipathd Signed-off-by: Jeremi Piotrowski <jpiotrowski@microsoft.com>
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sys-fs/multipath-tools: Disable realtime scheduling for multipathd
Add a dropin that prevents the service from controlling its own scheduling. On newer Flatcar releases, service ordering seems to have changed and multipathd is able to configure realtime scheduling before systemd tries (and fails) to enable the cpu controller. The dropin is meant to enforce sane behavior, and matches older Flatcar releases where cpu controller was enabled before multipathd tries (and fails) to configure realtime scheduling.
How to use
[ describe what reviewers need to do in order to validate this PR ]
TODO: mantle test case
TODO: changelog
Testing done
[Describe the testing you have done before submitting this PR. Please include both the commands you issued as well as the output you got.]
changelog/directory (user-facing change, bug fix, security fix, update)/bootand/usrsize, packages, list files for any missing binaries, kernel modules, config files, kernel modules, etc.