Re: 24rc8: unregister_netdevice: waiting for ... to become free

From: Roland
Date: Fri May 02 2008 - 05:31:59 EST


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@xxxxxxxxxxxxxxx>;
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@xxxxxx> 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@xxxxxx>
> > 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@xxxxxxxxxxxxxxx - 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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