kern/56573: memory leak with i915 with drm56

[nia%pkgsrc.org@localhost]

>Number:         56573
>Category:       kern
>Synopsis:       memory leak with i915 with drm56
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Dec 23 22:05:00 +0000 2021
>Originator:     nia
>Release:        
>Organization:
The NetBSD Foundation
>Environment:
NetBSD amnesia 9.99.92 NetBSD 9.99.92 (GENERIC) #0: Mon Dec 20 20:20:35 UTC 2021  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd6
>Description:
After some time playing games/minetest:

http://ftp.netbsd.org/pub/NetBSD/misc/nia/vmstat

active_node is using massive amounts of memory, leaving the system unusable.
>How-To-Repeat:

>Fix: