| From | Vineeth Remanan Pillai <> | Subject | Re: [RFC PATCH v2 00/17] Core scheduling v2 | Date | Wed, 24 Apr 2019 11:19:13 +0000 |
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> Is this one missed? Or fixed with a better impl? > > The boot up CPUs don't match the possible cpu map, so the not onlined > CPU rq->core are not initialized, which causes NULL pointer dereference > panic in online_fair_sched_group(): > Thanks for pointing this out. I think the ideal fix would be to correctly initialize/cleanup the coresched attributes in the cpu hotplug code path so that lock could be taken successfully if the sibling is offlined/onlined after coresched was enabled. We are working on another bug related to hotplugpath and shall introduce the fix in v3.
Thanks
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