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SubjectRe: [PATCH v3] mm/memory_hotplug: Fix try_offline_node()
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On 05.11.19 02:20, Masayoshi Mizuma wrote:
> 5.4-rc5 with this patch works for memory-hotadd and remove, thanks!
> Please feel free to add:
>
> Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
>
> Without this patch, memory hotplug fails as panic:
>
> BUG: kernel NULL pointer dereference, address: 0000000000000000
> ...
> Call Trace:
> remove_memory_block_devices+0x81/0xc0
> try_remove_memory+0xb4/0x130
> ? walk_memory_blocks+0x75/0xa0
> __remove_memory+0xa/0x20
> acpi_memory_device_remove+0x84/0x100
> acpi_bus_trim+0x57/0x90
> acpi_bus_trim+0x2e/0x90
> acpi_device_hotplug+0x2b2/0x4d0
> acpi_hotplug_work_fn+0x1a/0x30
> process_one_work+0x171/0x380
> worker_thread+0x49/0x3f0
> kthread+0xf8/0x130
> ? max_active_store+0x80/0x80
> ? kthread_bind+0x10/0x10
> ret_from_fork+0x35/0x40
>
> - Masa

Thanks a lot for testing!

--

Thanks,

David / dhildenb

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