Re: kern/56478: unused wm0 periodically prints "device timeout" and causes kernel latency

[SAITOH Masanobu <msaitoh%execsw.org@localhost>]

The following reply was made to PR kern/56478; it has been noted by GNATS.

From: SAITOH Masanobu <msaitoh%execsw.org@localhost>
To: gnats-bugs%netbsd.org@localhost, kern-bug-people%netbsd.org@localhost,
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: msaitoh%execsw.org@localhost
Subject: Re: kern/56478: unused wm0 periodically prints "device timeout" and
 causes kernel latency
Date: Mon, 1 Nov 2021 13:22:27 +0900

 On 2021/10/31 17:05, nia%pkgsrc.org@localhost wrote:
 >> Number:         56478
 >> Category:       kern
 >> Synopsis:       unused wm0 periodically prints "device timeout" and causes kernel latency
 >> Confidential:   no
 >> Severity:       non-critical
 >> Priority:       medium
 >> Responsible:    kern-bug-people
 >> State:          open
 >> Class:          sw-bug
 >> Submitter-Id:   net
 >> Arrival-Date:   Sun Oct 31 08:05:00 +0000 2021
 >> Originator:     nia
 >> Release:        NetBSD 9.99.92 amd64
 >> Organization:
 > The NetBSD Foundation, Inc
 >> Environment:
 > NetBSD 9.99.92 amd64
 >> Description:
 > booting with dhcpcd=YES, with no cable plugged into my wm0, it
 > periodically spams dmesg:
 > 
 > [  1152.784855] wm0: device timeout (txfree 4032 txsfree 0 txnext 76)
 > [  1176.035005] wm0: device timeout (txfree 4032 txsfree 0 txnext 79)
 > [  1201.285172] wm0: device timeout (txfree 4032 txsfree 0 txnext 76)
 > 
 > until `ifconfig wm0 down`.
 > 
 > It causes audio skipping until the ifconfig down,
 > presumably due to a spike in system load.
 >> How-To-Repeat:
 > 
 >> Fix:
 > 
 
 dmesg please.
 
 -- 
 -----------------------------------------------
                  SAITOH Masanobu (msaitoh%execsw.org@localhost
                                   msaitoh%netbsd.org@localhost)