On Tue, Sep 15, 2020 at 11:41:42AM +0200, Laurent Dufour wrote:
> [1] According to Oscar Salvador, using this qemu command line, ACPI memory
> hotplug operations are raised at SYSTEM_SCHEDULING state:
I would like to stress that this is not the only way we can end up
hotplugging memor while state = SYSTEM_SCHEDULING.
According to David, we can end up doing this if we reboot a VM
with hotplugged memory.
(And I have seen other virtualization technologies do the same)
> Fixes: 4fbce633910e ("mm/memory_hotplug.c: make
> register_mem_sect_under_node() a callback of walk_memory_range()")
> Signed-off-by: Laurent Dufour <[email protected]>
> Reviewed-by: David Hildenbrand <[email protected]>
> Cc: [email protected]
> Cc: Greg Kroah-Hartman <[email protected]>
> Cc: "Rafael J. Wysocki" <[email protected]>
> Cc: Andrew Morton <[email protected]>
> Cc: Michal Hocko <[email protected]>
> Cc: Oscar Salvador <[email protected]>
Reviewed-by: Oscar Salvador <[email protected]>
--
Oscar Salvador
SUSE L3
