Tuesday, August 18, 2009

ping: sendmsg: No buffer space available (Madwifi/Atheros)

I set up a STA-AP network
Interface fails after approx 2 minutes.
ifconfig/ifdown/ifup does not bring the interface back up.

Pings show-
...
64 bytes from 192.168.10.1: icmp_seq=12 ttl=64 time=0.819 ms
64 bytes from 192.168.10.1: icmp_seq=13 ttl=64 time=0.673 ms
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available
ping: sendmsg: No buffer space available

Increasing the queue size by using the following command helped-
echo 83886080 > /proc/sys/net/core/wmem_max
Do let me know how it works for you.

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