Re: 2.6.24 regression: reference count leak in PPPoE

[David Miller]

From: Ingo Molnar <mingo@xxxxxxx>
Date: Sun, 20 Jan 2008 21:01:09 +0100

> 
> * Andi Kleen <ak@xxxxxxx> wrote:
> 
> > My workstation running 2.6.24-rc8 just hung during shutdown with an 
> > endless (or rather I didn't wait more than a few minutes) loop of
> > 
> > unregister_netdev: waiting for ppp-device to become free. Usage count 
> > = 1
> > 
> > ppp-device was an active PPPoE device.
> > 
> > No more information currently.
> 
> i've seen such problems (locked up box with endless loop of usage count 
> == 1) with pppoe in the past, and it seemed to be related to dynamic 
> IPs. (i saw that well before 2.6.24 - reported it once to davem)

No, this is a different bug Andi is seeing and it was
recently introduced:

	http://bugzilla.kernel.org/show_bug.cgi?id=9778
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