Re: Qnap / mv643xx_eth link dropping
On Sun, 2016-01-24 at 10:09 +0000, Ian Campbell wrote:
> On Thu, 2016-01-21 at 15:01 +0100, JM wrote:
> > On Thu, Jan 21, 2016 at 2:36 PM, Thomas Pircher <
> > tehpeh-debian@tty1.net> wrote:
> > > On 2016-01-21 13:18, JM wrote:
> > [...]
> > > Still it might be worth to try disabling TCP offloading in
> > > /etc/network/interfaces:
> > > [...]
> > 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.
>
> IMHO it's a bug if things don't work with the offloads available,
> especially given its a regression. Would you mind reporting to the
> upstream devs please?
>
> IIRC last time something like this happened it was in the phy driver
> rather than the actual Ethernet driver itself, although that may not be
> the case here.
I just spied this on netdev "net: mv643xx_eth: fix packet corruption with
TSO and tiny unaligned packets."[0] (posted yesterday).
Seems very plausibly related.
Ian.
[0] https://patchwork.ozlabs.org/patch/573334/
>
> Ian.
>
>
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