[v1] sched/deadline: Fix panic due to nested priority inheritance

[PATCH v5.4.y 0/4] sched/deadline: Fix panic due to nested priority inheritance

Ankit Jain posted 4 patches 3 years, 7 months ago

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include/linux/sched.h   |  14 +++--
kernel/sched/core.c     |  11 ++--
kernel/sched/deadline.c | 131 +++++++++++++++++++++++++---------------
3 files changed, 97 insertions(+), 59 deletions(-)

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[PATCH v5.4.y 0/4] sched/deadline: Fix panic due to nested priority inheritance

Posted by Ankit Jain 3 years, 7 months ago

When a CFS task that was boosted by a SCHED_DEADLINE
task boosts another CFS task (nested priority inheritance),
Kernel panic is observed.
Fixing priority inheritance changes the way how sched_deadline
attributes are being inherited from original donor task.

Additional supporting patches are added to fix throttling of
boosted tasks.

Daniel Bristot de Oliveira (1):
  sched/deadline: Unthrottle PI boosted threads while enqueuing

Lucas Stach (1):
  sched/deadline: Fix stale throttling on de-/boosted tasks

Juri Lelli (1):
  sched/deadline: Fix priority inheritance with multiple scheduling
    classes

Hui Su (1):
  kernel/sched: Remove dl_boosted flag comment

 include/linux/sched.h   |  14 +++--
 kernel/sched/core.c     |  11 ++--
 kernel/sched/deadline.c | 131 +++++++++++++++++++++++++---------------
 3 files changed, 97 insertions(+), 59 deletions(-)

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2.34.1