Re: [PATCH -next] arch_topology: Fix cache attributes detection in the CPU hotplug path

Conor.Dooley
2022-07-15T14:05:14Z

On 15/07/2022 10:16, Conor Dooley wrote:
> On 15/07/2022 10:11, Sudeep Holla wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> On Thu, Jul 14, 2022 at 04:10:36PM +0000, Conor.Dooley@microchip.com wrote:
>>> With the GFP_ATOMIC, behaviour is the same as before for me.
>>>
>>
>> So you still get -ENOMEM failure on your platform. It is fine, just that
>> I am bit curious to know why as it succeeds at device_initcall later.
>> I was hoping this might fix your memory allocation failure.
>
> Correct.

I take that back. On today's next with patch 2 applied, I don't see a
problem with no memory, so this does appear to have sorted the memory
allocation failure. Sorry for misleading you & thanks!

With my patches for store_cpu_topology on RISC-V I do see it though,
when called on the boot cpu. I must have mixed up which I had tested.
I have a fix for that though & will update my patches later.

Thanks & apologies!
Conor.