While there could be some use cases for CONFIG_RT_GROUP_SCHED, the
option seems to work only with cgroups v1 and we use cgroups v2 on
Jammy. Therefore with CONFIG_RT_GROUP_SCHED it is not possible to run
any realtime task, which is also seen as failures on some of LTP tests.
The CONFIG_RT_GROUP_SCHED should not be enabled for v5.15.
** Changed in: linux (Ubuntu)
Status: In Progress => Won't Fix
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1957788
Title:
Enable CONFIG_RT_GROUP_SCHED in relatime kernel
Status in linux package in Ubuntu:
Won't Fix
Bug description:
CONFIG_RT_GROUP_SCHED makes sense in realtime workloads, especially
ones involving multiple realtime tasks. It is also enabled in Intel’s
BSP for Yocto RT.
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