Vincent Guittot a53ce18cac sched/fair: Sanitize vruntime of entity being migrated ...

Commit 829c1651e9c4 ("sched/fair: sanitize vruntime of entity being placed")
fixes an overflowing bug, but ignore a case that se->exec_start is reset
after a migration.

For fixing this case, we delay the reset of se->exec_start after
placing the entity which se->exec_start to detect long sleeping task.

In order to take into account a possible divergence between the clock_task
of 2 rqs, we increase the threshold to around 104 days.

Fixes: 829c1651e9c4 ("sched/fair: sanitize vruntime of entity being placed")
Originally-by: Zhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Zhang Qiao <zhangqiao22@huawei.com>
Link: https://lore.kernel.org/r/20230317160810.107988-1-vincent.guittot@linaro.org

2023-03-21 14:43:04 +01:00

..

autogroup.c

sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()

2022-08-12 11:25:10 +02:00

autogroup.h

sched/headers: Add header guard to kernel/sched/stats.h and kernel/sched/autogroup.h

2022-02-23 08:22:00 +01:00

build_policy.c

sched: Fix missing prototype warnings

2022-05-01 10:03:43 +02:00

build_utility.c

sched: Fix missing prototype warnings

2022-05-01 10:03:43 +02:00

clock.c

sched/clock: Make local_clock() noinstr

2023-01-31 15:01:47 +01:00

completion.c

sched/completion: Add wait_for_completion_state()

2022-09-07 21:53:49 +02:00

core_sched.c

sched: Rename task_running() to task_on_cpu()

2022-09-07 21:53:47 +02:00

core.c

sched/fair: Sanitize vruntime of entity being migrated

2023-03-21 14:43:04 +01:00

cpuacct.c

Merge branch 'sched/fast-headers' into sched/core

2022-03-15 09:05:05 +01:00

cpudeadline.c

sched/core: Introduce sched_asym_cpucap_active()

2022-08-02 12:32:45 +02:00

cpudeadline.h

sched/headers: Simplify and clean up header usage in the scheduler

2018-03-04 12:39:29 +01:00

cpufreq_schedutil.c

cpufreq: schedutil: make kobj_type structure constant

2023-02-23 19:57:29 +01:00

cpufreq.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

cpupri.c

sched/all: Change all BUG_ON() instances in the scheduler to WARN_ON_ONCE()

2022-08-12 11:25:10 +02:00

cpupri.h

sched/cpupri: Add CPUPRI_HIGHER

2020-10-29 11:00:30 +01:00

cputime.c

cputime: remove cputime_to_nsecs fallback

2022-12-27 12:52:17 +01:00

deadline.c

sched/deadline: Add more reschedule cases to prio_changed_dl()

2023-02-11 11:18:10 +01:00

debug.c

- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in

2022-10-10 17:53:04 -07:00

fair.c

sched/fair: Sanitize vruntime of entity being migrated

2023-03-21 14:43:04 +01:00

features.h

sched/fair: Introduce SIS_UTIL to search idle CPU based on sum of util_avg

2022-06-28 09:08:30 +02:00

idle.c

arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled

2023-01-13 11:48:15 +01:00

isolation.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

loadavg.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

Makefile

sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

membarrier.c

sched/membarrier: Introduce MEMBARRIER_CMD_GET_REGISTRATIONS

2023-01-07 11:29:29 +01:00

pelt.c

sched/headers: Introduce kernel/sched/build_policy.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

pelt.h

sched/fair: Decay task PELT values during wakeup migration

2022-06-28 09:17:46 +02:00

psi.c

sched/psi: Fix use-after-free in ep_remove_wait_queue()

2023-02-15 14:19:16 +01:00

rt.c

sched/rt: pick_next_rt_entity(): check list_entry

2023-02-11 11:18:10 +01:00

sched-pelt.h

sched/fair: Fix "runnable_avg_yN_inv" not used warnings

2019-06-17 12:15:58 +02:00

sched.h

sched/fair: Remove capacity inversion detection

2023-02-11 11:18:09 +01:00

smp.h

smp: Rename flush_smp_call_function_from_idle()

2022-05-01 10:03:43 +02:00

stats.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

stats.h

sched/psi: Use task->psi_flags to clear in CPU migration

2022-10-30 10:12:15 +01:00

stop_task.c

sched: Add update_current_exec_runtime helper

2022-08-27 00:05:35 +02:00

swait.c

sched/headers: Introduce kernel/sched/build_utility.c and build multiple .c files there

2022-02-23 10:58:33 +01:00

topology.c

Networking changes for 6.3.

2023-02-21 18:24:12 -08:00

wait_bit.c

wait_on_bit: add an acquire memory barrier

2022-08-26 09:30:25 -07:00

wait.c

wait: Return number of exclusive waiters awaken

2022-11-16 11:33:03 -07:00