netdev - Re: Network hangs on current git kernel

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Message-ID: <1338630610.2760.1695.camel@edumazet-glaptop>
Date:	Sat, 02 Jun 2012 11:50:10 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Markus Trippelsdorf <markus@...ppelsdorf.de>
Cc:	netdev@...r.kernel.org
Subject: Re: Network hangs on current git kernel

On Sat, 2012-06-02 at 10:25 +0200, Markus Trippelsdorf wrote:
> I'm running the latest git kernel 3.4.0-09820-g86c47b7 and see periodic
> network "hangs" on my machine.
> 
> These hangs mostly occur when I read nntp news articles. Every once in a
> while the nntp client seems to take forever to fetch an article. During
> these hangs I see packet losses:

> --- heise.de ping statistics ---
> 46 packets transmitted, 32 received, 30% packet loss, time 45101ms
> rtt min/avg/max/mdev = 21.613/23.021/32.210/1.924 ms
> 
> Sorry, if this all sounds somewhat vague. I will try to record a sysrq-w dump
> in the future.
> 

For sure... its a bit vague.

Maybe tell us what NIC it is, that sort of things...



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