I ran into this issue on a busy vtund server, it would eventually
deadlock networking
After some detective work it appears to be as a result of this bug
https://bugzilla.redhat.com/show_bug.cgi?id=541224
The bug report has a patch, I applied it to the kernel source and
rebuilt a new kernel RPM which I installed on our vtun servers . This
has resolved the issue for us
please let me know if this solves the issue for you too.
regards
Brendan
On Mon, 2010-04-05 at 09:57 -0430, Daniel Bruno wrote:
> On Wed, Mar 24, 2010 at 9:21 AM, robert mena <robert.mena@xxxxxxxxx> wrote:
> > Hi,
> > Does it prevent you from accessing the machine with several of those
> > messages appearing ? Like it was re spawning ?
>
> > The same here without a clue?
> nop.
>
> > Does the version of vtund is the same in both ends?
>
> Yeah, the same version in both ends.
>
> > On Sat, Mar 20, 2010 at 11:05 AM, Daniel Bruno
> > <danielbruno@xxxxxxxxxxxxxxxxx> wrote:
> >>
> >> Hello,
> >>
> >> I have two hosts with a tunnel closed by vtun, when I reboot a host,
> >> the other show the error bellow.
> >>
> >> unregister_netdevice: waiting for tun0 to become free. Usage count = 6
> >>
> >> OS version: CentOS 5.4
> >> Vtund version: vtun-3.0.2-1
> >>
> >> some idea about?
> >>
> >> Thanks
> >> --
> >> Daniel Bruno
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