NetBSD Problem Report #58827

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Date: Thu, 14 Nov 2024 21:30:55 +0000 (UTC)
From: d.hutchinson@live.com
Reply-To: d.hutchinson@live.com
To: gnats-bugs@NetBSD.org
Subject: 10.0 on RPI 0W, bwfm appears to hang
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>Number:         58827
>Category:       port-evbarm
>Synopsis:       10.0 on RPI 0W, bwfm appears to hang
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-evbarm-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Nov 14 21:35:00 +0000 2024
>Last-Modified:  Fri Nov 15 07:45:01 +0000 2024
>Originator:     David Hutchinson
>Release:        NetBSD 10.0 earmv6hf
>Organization:
>Environment:
NetBSD reddwarf.parhelia 10.0 NetBSD 10.0 (RPI) #0: Thu Mar 28 08:33:33 UTC 2024  mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/evbarm/compile/RPI evbarm

>Description:
Large file transfers appear to cause networking to hang. Small transfers such as remote shells or serving dokuwiki pages via nginx don't appear to cause problems, but using wget to download a large file or installing a large remote package via pkgin causes all networking to cease after a few seconds. Sometimes the speed declines, sometimes it it stops immediately.

Once this happens, software such as ping or ssh just hangs when invoked. They they can be killed via ^C or ^D. Attemps to connect to the RPI0W from remote hosts gives a "No Route to host" error. The RPI doesn't respond to pings.

Every once in a while it will successfully download a large file without crashing.

When it fails, no messages are printed to the console or output via dmesg
>How-To-Repeat:
ftp https://cdn.netbsd.org/pub/NetBSD/NetBSD-10.0/evbarm-earmv6hf/binary/sets/base.tgz
>Fix:

>Audit-Trail:
From: mlelstv@serpens.de (Michael van Elst)
To: gnats-bugs@netbsd.org
Cc: 
Subject: Re: port-evbarm/58827: 10.0 on RPI 0W, bwfm appears to hang
Date: Fri, 15 Nov 2024 07:10:18 -0000 (UTC)

 d.hutchinson@live.com writes:

 >Large file transfers appear to cause networking to hang. Small transfers such as remote shells or serving dokuwiki pages via nginx don't appear to cause problems, but using wget to download a large file or installing a large remote package via pkgin causes all networking to cease after a few seconds. Sometimes the speed declines, sometimes it it stops immediately.

 I get this on a Pi Zero2w which has a different wifi chip, but not on a Pi0w.
 If that's a new Pi0w it would be interesting if they also switched it to
 the new chip (manufacturer is Synaptics).

From: Ramiro Aceves <ea1abz@gmail.com>
To: gnats-bugs@netbsd.org, Michael van Elst via gnats <gnats-admin@NetBSD.org>,
 port-evbarm-maintainer@netbsd.org, gnats-admin@netbsd.org,
 netbsd-bugs@netbsd.org, d.hutchinson@live.com
Cc: 
Subject: Re: port-evbarm/58827: 10.0 on RPI 0W, bwfm appears to hang
Date: Fri, 15 Nov 2024 08:41:55 +0100

 El 15 de noviembre de 2024 8:15:01 CET, Michael van Elst via gnats <gnats-a=
 dmin@NetBSD=2Eorg> escribi=C3=B3:
 >The following reply was made to PR port-evbarm/58827; it has been noted b=
 y GNATS=2E
 >
 >From: mlelstv@serpens=2Ede (Michael van Elst)
 >To: gnats-bugs@netbsd=2Eorg
 >Cc:=20
 >Subject: Re: port-evbarm/58827: 10=2E0 on RPI 0W, bwfm appears to hang
 >Date: Fri, 15 Nov 2024 07:10:18 -0000 (UTC)
 >
 > d=2Ehutchinson@live=2Ecom writes:
 >=20
 > >Large file transfers appear to cause networking to hang=2E Small transf=
 ers such as remote shells or serving dokuwiki pages via nginx don't appear =
 to cause problems, but using wget to download a large file or installing a =
 large remote package via pkgin causes all networking to cease after a few s=
 econds=2E Sometimes the speed declines, sometimes it it stops immediately=
 =2E
 >=20
 > I get this on a Pi Zero2w which has a different wifi chip, but not on a =
 Pi0w=2E
 > If that's a new Pi0w it would be interesting if they also switched it to
 > the new chip (manufacturer is Synaptics)=2E
 >=20

 Hello=20

 I also confirm that my Raspberry Pi Zero W has very bad bwfm driver behavi=
 or=2E It makes it unusable and it was very disappointing from the beginning=
 =2E It was my first contact with NetBSD=2E I use now a wifi USB dongle  TP-=
 LINK TL-WN723N v3 that uses urtwn driver that it is not perfect but works b=
 etter=2E It occasionally looses the network=2E I made a little service that=
  reboots the machine in order to be accessible=2E

 Regards=2E

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