Messages in this thread | | | Date | Wed, 15 Apr 2020 13:12:35 +0200 | From | Sebastian Andrzej Siewior <> | Subject | Re: [ANNOUNCE] v5.6.2-rt1 |
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On 2020-04-08 09:00:13 [+0200], Juri Lelli wrote: > Hi, Hi,
> On 03/04/20 19:04, Sebastian Andrzej Siewior wrote: > > Dear RT folks! > > > > I'm pleased to announce the v5.6.2-rt1 patch set. > > > > Changes since v5.4.28-rt19: > > > > - Rebase to v5.6.2 > > I was reviewing the new set and I couldn't find v5.4.28-rt19 > 6dbbc833c99f ("mm: perform lru_add_drain_all() remotely"). Don't think > it has been squashed either. > > Am I wrong? If not, why was that left out?
I was going to drop it from v5.4 but kept it last minute. I announced in https://lkml.kernel.org/r/20200309171350.kjb3pdjazhxm2li2@linutronix.de
that the problem it fixes is not limited to RT so we need a solution for both config switches. The current plan for local-locks is not to work cross CPU because it breaks the local_irq_save() / preempt_disable() replacement which is something this patch relies on. The worker triggered via vmstat_update() is also blocked if the user task runs at an elevated priority for longer time.
> Thanks! > > Juri
Sebastian
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