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pktgen problem (skb refcount) in 2.6.12-rc1

To: Harald Welte <laforge@xxxxxxxxxxxx>
Subject: pktgen problem (skb refcount) in 2.6.12-rc1
From: Robert Olsson <Robert.Olsson@xxxxxxxxxxx>
Date: Sun, 3 Apr 2005 21:18:30 +0200
Cc: netdev@xxxxxxxxxxx
In-reply-to: <20050402191132.GF1890@xxxxxxxxxxxxxxxxxxxxxxx>
References: <20050402191132.GF1890@xxxxxxxxxxxxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
Harald Welte writes:

 > I've tried to get pktgen running on 2.6.12-rc1 (dual-opteron system, two
 > dual e1000 boards).  

 > I've tried to track the problem down, and I've confirmed that skb->users
 > never goes down to 1 but instead stays at '2'.

 > The same system with the same pktgen script works fine with 2.6.11.6.
 > 
 > I'm reporting this since it seems like it sounds like we have a skb
 > usage count leak somewhere :(

 Hello!

 Sounds like a diff could give some clues. pktgen, e1000 and TX-path should 
 be interesting as ev. changes in kernel config.

                                        --ro

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