Re: kern/57171: altqd takes 100% of a CPU when daemon is stopped

[Taylor R Campbell <riastradh%NetBSD.org@localhost>]

The following reply was made to PR kern/57171; it has been noted by GNATS.

From: Taylor R Campbell <riastradh%NetBSD.org@localhost>
To: =?UTF-8?Q?BERTRAND_Jo=c3=abl?= <joel.bertrand%systella.fr@localhost>
Cc: gnats-bugs%NetBSD.org@localhost
Subject: Re: kern/57171: altqd takes 100% of a CPU when daemon is stopped
Date: Fri, 6 Jan 2023 19:28:49 +0000

 Can you do the following:
 
 1. When altqd is hanging and taking 100% CPU, hit ^T at the terminal
    and show what it prints?
 
 2. Install the debug.tgz set (or debug.tar.xz) in the VM, try
    attaching gdb again, and do `bt' and `info locals'?
 
 It might be stuck in logic in userland.  Possible there's some bug
 with the data structure management in qop.c that sends it into an
 infinite loop.