Oooohh, that article helps my understanding immensely, that really sounds like the problem.
I'm also folding a previous response from Serge that fell off the list by accident, this all makes sense. I tried to reproduce it again today and failed, and now I understand what Serge was saying about the mac address being "too high". I'll hard code the bridges MAC address to that of eth0 and see how that goes. ------------------------------- I think that makes sense if the vm bridge's macaddr is being changed. If only the new container's networking goes down, then that seems less likely to be the cause. So I'm actually happy to hear this. -serge -----Original Message----- From: Hans Feldt [mailto:hans.fe...@ericsson.com] Sent: Tuesday, April 02, 2013 9:46 PM To: Serge Hallyn Cc: David Parks; lxc-users@lists.sourceforge.net Subject: Re: [Lxc-users] Networking fails sporadically in containers on ubuntu server 12.10 Could it be the issue described in http://backreference.org/2010/07/28/linux-bridge-mac-addresses-and-dynamic-p orts/ ? I encountered that one and solved it by creating a dummy interface with the same life cycle as the bridge. thanks, Hans On 04/01/2013 02:34 PM, Serge Hallyn wrote: > Quoting David Parks (davidpark...@yahoo.com): >> davidparks21@hostOS:~$ arp -a >> >> ? (10.1.0.4) at c6:63:bb:a7:d8:60 [ether] on br0 >> >> ? (10.1.0.2) at 52:54:00:12:35:02 [ether] on br0 >> >> ? (10.1.0.45) at 32:8c:fc:c1:7f:e5 [ether] on br0 > > Can you set the macaddr on your virtualbox nic to something lower, > like something starting with 22: ? > > 32: sounds really low for a veth peer nic, I'm surprised - mine are > always fe:. In fact, looking at > src/lxc/conf.c:setup_private_host_hw_addr(), it makes sure to set 0xfe > in the first two bytes. So why are you getting 32: ? Hmmm. > > Could you also try adding '-l info -o lxc.debug' to your lxc-start > command on a failing container, and send the resulting lxc.debug file? > We're looking for output from: > > DEBUG("mac address of host interface '%s' changed to private " > "%02x:%02x:%02x:%02x:%02x:%02x", veth1, > > thanks, > -serge > > ---------------------------------------------------------------------- > -------- Own the Future-Intel® Level Up Game Demo Contest 2013 > Rise to greatness in Intel's independent game demo contest. > Compete for recognition, cash, and the chance to get your game on > Steam. $5K grand prize plus 10 genre and skill prizes. > Submit your demo by 6/6/13. http://p.sf.net/sfu/intel_levelupd2d > _______________________________________________ > Lxc-users mailing list > Lxc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/lxc-users > > ------------------------------------------------------------------------------ Own the Future-Intel(R) Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2 _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users