netdev - Re: NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out

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Date:	Sun, 5 Jan 2014 08:28:06 +0100
From:	Fejes József <jozsef.fejes@...il.com>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	netdev@...r.kernel.org
Subject: Re: NETDEV WATCHDOG: eth0 (r8169): transmit queue 0 timed out

> Could you check the irq count and ethtool -S eth0 as well ?

Here you go: http://pastebin.com/acabFBHv

> Does the laptop also include a different operating system ?

Yes, Windows 7.

>> I haven't used that interface for quite some time, a year at most. I
>> keep up to date with the stable kernels, so a version change broke it,
>> but I'm not sure which. Would it be the best course of action if I
>> tried some older versions?
>
> Yes, please do.
>
> There has been no specific change in this timeframe for the chipset you
> use (RTL_GIGA_MAC_VER_25). The problem may have been unnoticed for a
> rather long time. :o/

I booted into an old kernel I found in the Debian repository: Linux
wicklow 3.2.0-4-686-pae #1 SMP Debian 3.2.53-2 i686 GNU/Linux

And the same issue happened. Queue times out, no packets are received
on the other end.

Could it be that this regression ended up in this long-term supported
kernel? Or could it be a hardware problem? My Windows laptop's
ethernet definitely works in other places, so could be the cable or
the integrated NIC in the Linux machine...

Best regards,
Jozsef
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