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Message-ID: <1335375781.5951.2.camel@edumazet-glaptop> Date: Wed, 25 Apr 2012 19:43:01 +0200 From: Eric Dumazet <eric.dumazet@...il.com> To: Chris <xchris89x@...glemail.com> Cc: linux-kernel@...r.kernel.org Subject: Re: many rx packets dropped since 2.6.37 On Wed, 2012-04-25 at 16:38 +0200, Chris wrote: > 2012/4/25 Eric Dumazet <eric.dumazet@...il.com>: > >> 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. > > Do you have the opportunity to test it? Just install fedora 16 (linux > 3.3) or ubuntu 12.04 (linux 3.2) as guest under kvm and use as virtual > network card virtio_net or e1000. > > You will see many lost rx packets and i have no idea why??? You can use drop_monitor / dropwatch to figure out https://fedorahosted.org/dropwatch/ http://prefetch.net/blog/index.php/2011/07/11/using-netstat-and-dropwatch-to-observe-packet-loss-on-linux-servers/ Or just ignore the thing, if no user side effect is noticed. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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