[Olsr-dev] OLSR1: sendto IPv4 Resource temporarily unavailable / affects other neighbours

[Bastian Bittorf]

We run recent (r42648) OpenWrt on a 5 Ghz longshot and have a lot of
'OLSR: sendto IPv4 Resource temporarily unavailable' messages in syslog.

The bad thing: even the neighbours on this link which are
connected via wire get very bad values if this state is triggered:

Table: Links
Local IP        Remote IP       Hyst.   LQ      NLQ     Cost
10.63.160.161   10.63.48.33     0.00    0.796   0.105   11.863
10.63.160.161   10.63.6.125     0.00    0.705   0.137   10.321
10.63.160.161   10.63.222.33    0.00    0.784   0.094   INFINITE
10.63.160.129   10.63.209.129   0.00    0.353   0.184   15.372

(the first 3 are wired links, the daemon up since >300 sec)
it can recover without interaction:

Table: Links
Local IP	Remote IP	Hyst.	LQ	NLQ	Cost
10.63.160.161	10.63.48.33	0.00	1.000	1.000	1.000	
10.63.160.161	10.63.6.125	0.00	1.000	1.000	1.000	
10.63.160.161	10.63.222.33	0.00	1.000	1.000	1.000	
10.63.160.129	10.63.209.129	0.00	1.000	1.000	1.000	

but it happens from time to time and lasts up to 20 minutes.
restarting the daemon or the wifi-interface or changing channel does not help.
note: we still use 'etx_ff' (instead of etx_ffeth).

OLSR-version is 0.6.6.2-git_2d4375e-hash_2327cc988bc51296b367208d8d3133f7

bye bastian / weimarnetz.de / wireless.subsignal.org