linux-kernel - Re: 24rc8: unregister_netdevice: waiting for ... to become free

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Date:	Fri, 2 May 2008 11:31:44 +0200
From:	"Roland" <devzero@....de>
To:	"\"Soeren Sonnenburg\"" <kernel@....de>
Cc:	<linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>,
	"\"Andrew Morton\"" <akpm@...ux-foundation.org>
Subject: Re: 24rc8: unregister_netdevice: waiting for ... to become free

>I am not exactly sure which kernel version Roland (?) is/was using but
>from what I can tell this bug is fixed since 2.6.24 (at least). Well I
>didn't see it with madwifi nor with the tun devices anymore on any of
>the 24.X or 25rc's/25 ...

pardon,   2.6.25-git17 in vmware


>; <netdev@...r.kernel.org>;
List:       linux-kernel
Subject:    Re: 24rc8: unregister_netdevice: waiting for ... to become free.
From:       Soeren Sonnenburg <kernel () nn7 ! de>
Date:       2008-05-02 6:15:43
Message-ID: 1209708943.23075.52.camel () localhost
[Download message RAW]

On Thu, 2008-05-01 at 22:59 -0700, Andrew Morton wrote:
> On Fri, 2 May 2008 03:26:28 +0200 "Roland" <devzero@....de> wrote:
>
> > i`m also seeing this one, but with pcnet32 - "modprobe -r pcnet32" never
> > returns and
> >
> > "unregister_netdevice: waiting for eth0 to become free. Usage count = 1"
> >
> > being printed over and over again
> >
> > lsmod |grep pcnet32 shows
> >
> > pcnet32            35828    0
> > mii                      9344    1    pcnet32
> >
> > i see stale ssh connection on port 22 and sshd for that session remains
> > unkillable process.
> >
>
> here a bug
>
> >
> >
> > List:       linux-kernel
> > Subject:    Re: 24rc8: unregister_netdevice: waiting for ... to become 
> > free.
> > From:       Soeren Sonnenburg <kernel () nn7 ! de>
> > Date:       2008-01-29 8:59:10
> > Message-ID: 1201597150.4973.10.camel () localhost
> > [Download message RAW]
> >
> > On Tue, 2008-01-22 at 22:44 -0800, David Miller wrote:
> > > From: Soeren Sonnenburg <kernel@....de>
> > > Date: Wed, 23 Jan 2008 07:42:21 +0100
> > >
> > > > Dear all,
> > > >
> > > > since some 2.6.24rc version I suddenly experience such messages on
> > > > console when trying to shutdown a vpn connection:
> > > >
> > > > unregister_netdevice: waiting for tun0 to become free. Usage count = 
> > > > 1
> > > >
> > > > or when removing an usb wlan dongle (although it was ifconfig wlan0
> > > > down'd before)
> > >
> > > Current GIT already has a fix for this, attached below:
> >
> > hmmhhh, I am still seeing this problem on 2.6.24 with at least with the
> > madwifi driver...
> >
> > Soeren
>
> there a bug.
>
>
> Let's cc netdev@...r.kernel.org - linux-net is dead, afaik.
>
> Thanks for reporting all these bugs but please do take much mure care over
> the cc's.  Be sure to cc every party who was cc'ed on the email to which
> you're replying.  I restored Soeren.

I am not exactly sure which kernel version Roland (?) is/was using but
from what I can tell this bug is fixed since 2.6.24 (at least). Well I
didn't see it with madwifi nor with the tun devices anymore on any of
the 24.X or 25rc's/25 ...

Soeren

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