dhcpcd-discuss

On 10/11/2020 11:00, Jan Pohanka wrote:
> 10. 11. 2020 v 11:50 odesílatel Roy Marples <roy@xxxxxxxxxxxx> napsal:
> > On 10/11/2020 10:45, Jan Pohanka wrote:
> > > Maybe I have found the reason!
> > >
> > > dhcpcd is running twice on my device
> > >
> > > $ ps | grep dh
> > > 188 root     dhcpcd eth0
> > > 215 root     /sbin/dhcpcd -f /etc/dhcpcd.conf
> > >
> > > Is it a problem? One of the instances is started by an init.d script
> > > provided by a buildroot package. The second one probably by ifup
> > > scripts, but I do not see it now. I have to search...
> >
> > Yes, that would be the reason.
> >
> > The first instance is specific to eth0 and the second is for all interfaces.
> > If they started the other way around this would not be a problem, but as eth0
> > started first it is.
> >
> > You'll need to fix that without my help :/
> >
> > And yes, if you had resolvconf installed this issue would be mitagted, but would
> > only hide other issues as the various dhcpcd instances would be competing to
> > process RENEW messages.
> >
> > Maybe I should see if I can add code to stop dhcpcd running in master mode if it
> > can detect any single interface running already.
> >
> > Roy
>
> That is probably some incompatibility among older buildroot, busybox
> and dhcpcd. We have updated just the dhcpcd package some time ago and
> I did not notice the second instance.
> Thank you for your help. I will share the result if I find it....

Well, dhcpcd has behaved this way since dhcpcd-5 so I unless you upgraded from a 
really old version - and this is unlikely as you have started dhcpcd in master 
mode which imples >= 5 - then the issue must be elsewhere. ie not related to 
dhcpcd upgrade.

Roy