Re: Stuck looping on list_empty(list) in free_pcppages_bulk()

From: Sultan Alsawaf
Date: Tue Aug 31 2021 - 12:58:23 EST


On Tue, Aug 31, 2021 at 06:51:23PM +0200, Vlastimil Babka wrote:
> Does the kernel have commit 88e8ac11d2ea3 backported? If not, and there were
> memory hotplug operations happening, the infinite loop could happen. If that
> commit was not backported, and instead 5c3ad2eb7104 was backported, possibly
> there are more scenarios outside hotplug that can cause trouble.

Yes, it appears that 5.8.18 contains the 88e8ac11d2ea3 backport (commit ID
5b21a116b1365 in linux-5.8.y).

Thanks,
Sultan