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[brian at wildsong.biz]

I've been getting slammed with these messages on my console lately.

ed -1: Invalid argument
[2016-05-31 10:09:40] WARNING[16249]: chan_sip.c:3775 __sip_xmit: sip_xmit of 0x7f05140803f0 (len 559) to 192.168.1.45:0 returned -1: Invalid argument
[2016-05-31 10:09:40] WARNING[16249]: chan_sip.c:3775 __sip_xmit: sip_xmit of 0x7f05140803f0 (len 559) to 192.168.1.45:0 returned -1: Invalid argument
[

etc etc etc comes in bunches of about 10, all with same IP address in that bunch.

Does not appear to be related to one phone -- I have a mix of devices.  They appear to happen when a phone registers. The debug message "Invalid argument" is not helping me, I wish it were more descriptive. I peeked at the code and there is no indication what __sip_xmit() does (like all Asterisk code I have looked at so far), looks like it might do MANY things.



It does not appear to be tied to one version, I have tried 13.7.2, 13.8.0, 13.9.1


I don't see anything glaring when I "sip set debug on" and "core set debug 10" -- just more messages that I don't understand.


Like this ----------------------

---
[2016-05-31 10:10:39] WARNING[16249]: chan_sip.c:3775 __sip_xmit: sip_xmit of 0x7f0514050430 (len 559) to 192.168.1.45:0 returned -1: Invalid argument
Retransmitting #5 (no NAT) to 192.168.1.45:0:
NOTIFY sip:spa2000@192.168.1.45:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.2:5060;branch=z9hG4bK0d196419
Max-Forwards: 70
From: "asterisk" <sip:asterisk@192.168.1.2 ([email]sip%3Aasterisk@192.168.1.2[/email])>;tag=as522feace
To: <sip:spa2000@192.168.1.45:5060>
Contact: <sip:asterisk@192.168.1.2:5060>
Call-ID: 0d6963aa7350ce3274e7af420c35daa6@192.168.1.2:5060
CSeq: 102 NOTIFY
User-Agent: Asterisk PBX 13.9.1
Event: message-summary
Content-Type: application/simple-message-summary
Content-Length: 91

Messages-Waiting: no
Message-Account: sip:asterisk@192.168.1.2 ([email]sip%3Aasterisk@192.168.1.2[/email])
Voice-Message: 0/0 (0/0)

------

I am guessing this is some apparently unrelated and undocumented side effect of a setting I have changed recently but have not been successful chasing it down so far. I have this happening on two different servers now.


--
Brian Wilson

Wildsong 707-827-0001

[jcolp at digium.com]

Brian Wilson wrote: