From: Eric Dumazet <eric.dumazet@gmail.com>
To: Chris <xchris89x@googlemail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: many rx packets dropped since 2.6.37
Date: Wed, 25 Apr 2012 14:46:15 +0200 [thread overview]
Message-ID: <1335357975.3274.187.camel@edumazet-glaptop> (raw)
In-Reply-To: <CAOFJUkj27aF6diDjcZFTyBaTdDdU8URkj+1vr3ECoozbzqDVBg@mail.gmail.com>
On Wed, 2012-04-25 at 14:34 +0200, Chris wrote:
> Are you sure that these packets are really dropped? I see a lot of
> more packets dropped with virtio_net instead of e1000. (KVM
> environments)
>
Yep, we are sure packets are dropped, just read the patch and you'll can
see this.
> Why do we see dropped packets only in virtual environments and bonded
> network interfaces and not on real network interfaces?
This has to be investigated, eventually.
About the bond, if you are in active-backup mode, a frame coming to
inactive device is going to be dropped, or you could have duplication of
logical frames.
You can use tcpdump to get a copy of these frames.
next prev parent reply other threads:[~2012-04-25 12:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 11:03 Chris
2012-04-25 11:30 ` Eric Dumazet
2012-04-25 12:34 ` Chris
2012-04-25 12:46 ` Eric Dumazet [this message]
2012-04-25 14:38 ` Chris
2012-04-25 17:43 ` Eric Dumazet
2012-04-26 13:53 ` Chris
2012-04-26 14:07 ` Eric Dumazet
2012-04-26 14:29 ` Chris
2012-04-26 14:44 ` Eric Dumazet
2012-04-25 18:00 ` David Miller
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