Messages in this thread | | | From | Vincent Guittot <> | Date | Tue, 21 Mar 2023 13:38:45 +0100 | Subject | Re: [PATCH v2] sched/fair: sanitize vruntime of entity being migrated |
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On Tue, 21 Mar 2023 at 13:28, Peter Zijlstra <peterz@infradead.org> wrote: > > On Fri, Mar 17, 2023 at 05:08:10PM +0100, Vincent Guittot wrote: > > 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") > > Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com> > > Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> > > Just noticed, that SoB chain isn't valid, should Zhang be something > like: Originally-by or Suggested-by or whatever?
Originally-by would be the right tag
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