Re: [PATCH v2 2/2] kasan: fix memory hotplug during boot

[Andrey Ryabinin]

On 05/22/2018 07:36 PM, David Hildenbrand wrote:
> On 22.05.2018 18:26, Andrey Ryabinin wrote:
>>
>>
>> On 05/22/2018 01:07 PM, David Hildenbrand wrote:
>>> Using module_init() is wrong. E.g. ACPI adds and onlines memory before
>>> our memory notifier gets registered.
>>>
>>> This makes sure that ACPI memory detected during boot up will not
>>> result in a kernel crash.
>>>
>>> Easily reproducable with QEMU, just specify a DIMM when starting up.
>>
>>          reproducible
>>>
>>> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
>>> ---
>>
>> Fixes: fa69b5989bb0 ("mm/kasan: add support for memory hotplug")
>> Acked-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
>> Cc: <stable@xxxxxxxxxxxxxxx>
> 
> Think this even dates back to:
> 
> 786a8959912e ("kasan: disable memory hotplug")
> 

Indeed.