Re: Qnap / mv643xx_eth link dropping

[JM <fijam@archlinux.us>]

On Thu, Jan 21, 2016 at 2:36 PM, Thomas Pircher <tehpeh-debian@tty1.net> wrote:
> On 2016-01-21 13:18, JM wrote:
>>
>> I recently upgraded my LAN to 1Gbps and noticed that file transfers
>> from my NAS would be interrupted.
>
>
> I had problems with TCP offloading on my Qnap TS-420, which also uses the
> mv643xx driver. But that would only disconnect a TCP connection, and as far
> as I can remember didn't reset the ethernet link.
>
> Still it might be worth to try disabling TCP offloading in
> /etc/network/interfaces:
>
> auto eth0
> iface eth0 inet dhcp
>        offload-rx off           # disables TCP RX offloading
>        offload-tx off           # disables TCP TX offloading
>
>
> Thomas
>


This seems to have fixed it! Thanks a lot.

Although I wonder if a bug should be filed, or if it's just a wart we
need to remember about.

Best regards,
JM