Today we tried to install a Grandstream phone at a cutomer site but were unable to make it work. We have about 40 of these phones (all configured by US in the exact same way) and all working fine. But upon plugging this phone, SER started generating this message constantly in the log file:
Nov 13 16:53:14 maui /usr/local/sbin/ser[5066]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable Nov 13 16:53:16 maui /usr/local/sbin/ser[5068]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable Nov 13 16:53:19 maui /usr/local/sbin/ser[5065]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable
Looks like every time a REGISTER came in, that ERROR message would appear in the log file. All other Grandstream phones continued to register just fine. An ETHEREAL does not show anything that is obviously wrong with the message. I did restart SER but the message continued.
Can anybody tell me what could be the cause of this error? Or if anybody wants to look at the ETHEREAL trace I can sent it directly (its about 1MB).
SER Version is 8.11
Thanks, Andres
On Nov 13, 2003 at 18:15, Andres andres@telesip.net wrote:
Today we tried to install a Grandstream phone at a cutomer site but were unable to make it work. We have about 40 of these phones (all configured by US in the exact same way) and all working fine. But upon plugging this phone, SER started generating this message constantly in the log file:
Nov 13 16:53:14 maui /usr/local/sbin/ser[5066]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable Nov 13 16:53:16 maui /usr/local/sbin/ser[5068]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable Nov 13 16:53:19 maui /usr/local/sbin/ser[5065]: ERROR: udp_rcv_loop:recvfrom:[11] Resource temporarily unavailable
This error (EAGAIN) appears also when and udp packet with bad checksum is received. In this case the linux kernel will return EAGAIN. I think this is the case for you. Probably your "new" phone is placed before a very bad link which corrupts the packet (or you have a bad firewall).
[...]
Can anybody tell me what could be the cause of this error? Or if anybody wants to look at the ETHEREAL trace I can sent it directly (its about 1MB).
Send it to me (and also tell me the ip addresses of the guilty phone and of ser).
Andrei
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Andrei Pelinescu-Onciul -
Andres