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

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

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)