https://bugzilla.kernel.org/show_bug.cgi?id=214621
--- Comment #19 from Erhard F. (erhard_f@mailbox.org) --- (In reply to Lang Yu from comment #18)
Hi all,
I reproduced the issue. Thanks for Erhard F.'s work!
The problem is the pinned BO of last call to amdgpu_display_crtc_page_flip_target() was not unpinned properly.
Thanks for your work on it Lang! I was rather busy and would have been able to test it out this weekend. But glad you found the cause of the issue anyhow!