Re: port-arm/57102: vcmbox0 thread using 100% CPU

["Sad Clouds via gnats" <gnats-admin%NetBSD.org@localhost>]

The following reply was made to PR port-arm/57102; it has been noted by GNATS.

From: Sad Clouds <cryintothebluesky%gmail.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: port-arm/57102: vcmbox0 thread using 100% CPU
Date: Tue, 16 Dec 2025 09:50:36 +0000

 I'm not able to get back trace for some reason:
 
 crash> ps
 0    >  118 7   3     40200   ffff0000fa3e2100            vcmbox0
 
 crash> bt/a ffff0000fa3e2100
 trace: no trapframe found for lwp: 0xffff0000fa3e2100
 crash: kvm_read(0xffff00000000, 8): kvm_read: Bad address
 
 Also the when vcmbox0 is stuck 100% on CPU this lasts for a few
 minutes, then gradually drops to 0% usage and everything is back to
 normal. Not sure what can be attributed to this behavior.