Re: [PATCH 3/3] drm/amdkfd: Check cpu page faulted vmf->page got migrated to system RAM

On 2026-08-19 11:16, Chen, Xiaogang wrote:
> Maybe you said retry fault handler inside kernel is a better way: we 
> let driver return VM_FAULT_RETRY for pinned vmf->page, let kernel 
> retry handle_mm_fault, then hope the pin will be drop soon?

I agree. Pages should never be pinned for a very long time. In other 
words, I believe this is all working as it should and this patch is 
unnecessary.

Regards,
   Felix