Re: [PATCH v4 20/26] sched/deadline: Credit a rebuild to the CPU recorded with the task's bandwidth

[Mathieu Desnoyers]

On 2026-11-06 21:48, sashiko-bot@xxxxxxxxxx wrote:
> stale dl_bw_cpu used by dl_task_rebuild_cpu() after fallback migration
> dl_task_rebuild_cpu() disagrees with select_fallback_rq() on isolated CPUs

Right, both. In v5 the rebuild takes the CPU the task is on first, if it
is active and in the task's mask. A new patch after this one moves the
bandwidth and the record when a task must leave its CPU. That covers a
task that select_fallback_rq() places in another root domain. Its
selftest cases run with isolcpus=domain.

Thanks,

Mathieu

--
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com