Re: NET_NS: unregister_netdevice: waiting for lo to become free (afterusing openvpn)

[Ben Greear]

On 08/05/2010 02:51 AM, Eric W. Biederman wrote:
> Michael Leun<lkml20100708@xxxxxxxxxxxxxxx>  writes:

> > Unfortunately looks like indefinitely. Never watched longer so far
> > (rebooted soon), but I'm seeing this message now repeated every 10 secs
> > for ~10 minutes on a idle system.
>
> Ugh.  A real bug then.  These can be a pain to track down and fix. I
> think the last one of these I tracked down took a couple of weeks.  I
> will start digging in when I get back from vacation.

I once spent a similar amount of time putting in debug variants that
printed info for each time a netdev was acquired and released.

Maybe a similar logic could be put into the official kernel (and
disabled by default)?

That should save effort in the long run, I'd think.

Thanks,
Ben


--
Ben Greear <greearb@xxxxxxxxxxxxxxx>
Candela Technologies Inc  http://www.candelatech.com

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