From: Oliver Neukum <oneukum@suse.com>
To: "Adam Bennett" <abennett72@gmail.com>, "Bjørn Mork" <bjorn@mork.no>
Cc: Felipe Balbi <balbi@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org
Subject: Re: Possible bug with cdc_ether, triggers NETDEV WATCHDOG
Date: Mon, 14 Oct 2019 11:04:22 +0200 [thread overview]
Message-ID: <1571043862.19529.9.camel@suse.com> (raw)
In-Reply-To: <339e0633-6dd3-5c0f-0b6d-598848bf1d37@gmail.com>
Am Mittwoch, den 09.10.2019, 09:27 -0400 schrieb Adam Bennett:
> On 10/9/19 4:53 AM, Bjørn Mork wrote:
> > This warning means that the gadget doesn't accept the packets we send
> > it. There isn't much the host can do about that, except dropping
> > packets on the floor. Which is why the warning is this loud.
> >
>
> Would a firewall on either the linux host or the Pi Zero cause the same
> problem (and message)?
If a firewall discards a packet, it will not reach the transmit queue.
Hence the answer to that question is negative. If other OSes get this
device to work, we would need to know what they are doing differently.
Can you get a trace from them and compare it to ours?
Regards
Oliver
prev parent reply other threads:[~2019-10-14 9:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-07 21:15 Possible bug with cdc_ether, triggers NETDEV WATCHDOG Adam Bennett
2019-10-09 8:53 ` Bjørn Mork
2019-10-09 13:27 ` Adam Bennett
2019-10-14 9:04 ` Oliver Neukum [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1571043862.19529.9.camel@suse.com \
--to=oneukum@suse.com \
--cc=abennett72@gmail.com \
--cc=balbi@kernel.org \
--cc=bjorn@mork.no \
--cc=gregkh@linuxfoundation.org \
--cc=linux-usb@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).