Strange Bubba Two behavior

[einar]

Hello,

I've come up a strange behavior in my Bubba Two, that manifests itself only when rebooted / power cycled. Basically, once it's up, if *any* client that got access through its DHCP server tries to access the network outside the Bubba (i.e., WAN) by resolving a domain name, the network locks up, and after 3-4 minutes the Bubba reboots itself.

This goes on and on until I make the resolution happen from the Bubba itself (i.e., a simple "ping www.google.com", for example). Then everything works as expected without a hitch.

I have poked around in the logs but there are no evidences of fault, neither in the kernel log, nor in the other logs.

More information on the network topology, just to make things clearer:

Internet -> FIber/Ethernet converter -> Bubba (Router) -> Linksys WRTG (used as AP/switch only) -> clients

eth0 (WAN) gets the IP directly from my ISP. DHCP is enabled on eth1.

[carl]

This sounds really strange (nothing we have ever encountered before). Can you, if possible, send your syslog to support@excito.com (you can also attach it here if you want). Also can you see via SSH if there is any process spiking during the four minutes?

/Carl

[einar]

It's impossible to know if something spikes, as during those 4-5 minutes the network connectivity is completely absent (pings return "Destination unreachable" even if I'm attached directly to LAN).

Full syslog is attached to the email I sent (can't attach it here). Interesting parts are from 10.30 to 11.40 (at 10.30 I had to turn it off because of electrical maintenance here, and 5 mins later the problems started manifesting). If you see extfs recovery, it was because I had to forcefully turn it off sometimes (as the power switch looks like software).

[carl]

Could you try shutting down all services one at a time (mt-daapd in particular), and see if it seems to be linked to a particular service?

[einar]

I shut down mt-daapd and disabled it at boot, but problems persisted at the following power up.
Right now I'm unable to test further, as I need the appliance operational to carry out my day job, unfortunately...