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

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