RE: [BUG] wifi: rtw88: Hard system freeze on RTL8821CE when power_save is enabled (LPS/ASPM conflict)

From: Ping-Ke Shih

Date: Mon Mar 30 2026 - 20:34:52 EST



LB F <goainwo@xxxxxxxxx> wrote:
>
> Could you advise on how to investigate this further? For example:
>
> - Is there a debug flag or register dump we could capture right
> before the first corrupted frame in a burst?
> - Would it help to log C2H (chip-to-host) traffic around the
> time of these events?

I have never heard about this symptom from internal, so no clear
idea for that. Sorry.

>
> I am ready to run any specific tests you need. In the meantime,
> I agree that filtering by DRV_INFO_SIZE is the right practical
> solution, and I'm waiting for your official patch to test locally.

As malformed frames happen randomly, more validations like
DRV_INFO_SIZE are needed. I think Bitterblue is working on the
test patch. :)

Ping-Ke