Re: [PATCH v11 0/6] Use pageblock_order for cma and alloc_contig_range alignment.

[Qian Cai]

On Tue, Apr 26, 2022 at 05:38:58PM -0400, Zi Yan wrote:
> Thanks. Do you mind attaching your config file? I cannot reproduce
> the deadlock locally using my own config. I also see kmemleak_scan
> in the dumped stack, so it must be something else in addition to
> memory online/offline causing the issue.

Of course it also need to enable those. The kmemleak_scan is just a
symptom of one of the online operations is blocking forever, as the
locks were never released.

CONFIG_MEMORY_HOTPLUG=y
CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y
CONFIG_MEMORY_HOTREMOVE=y