netdev - Re: [PATCH] IP: Increment INADDRERRORS if routing for a packet is not successful

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Date:	Thu, 03 Jun 2010 05:54:00 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Bill Fink <billfink@...dspring.com>
Cc:	David Miller <davem@...emloft.net>, cl@...ux-foundation.org,
	netdev@...r.kernel.org, shemminger@...tta.com
Subject: Re: [PATCH] IP: Increment INADDRERRORS if routing for a packet is
 not successful

Le mercredi 02 juin 2010 à 23:50 -0400, Bill Fink a écrit :
> On Wed, 02 Jun 2010, David Miller wrote:
> 
> > Just in case people are really so clueless as to be unable to figure
> > this out:
> > 
> > echo 1 >/sys/kernel/debug/tracing/events/skb/kfree_skb/enable
> > ...do some stuff...
> > cat /sys/kernel/debug/tracing/trace
> > 
> > You can even trace it using 'perf' by passing "skb:kfree_skb"
> > as the event specifier.
> 
> Could someone remind me where to get documentation for obtaining
> and using perf.
> 

Its sources are included in kernel tree

cd tools/perf
make
./perf --help


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