asterisk users - Oct 2004 - Asterisk crashes on special Transfer with MGCP/ATA 186

Hi all,

i am using CVS-HEAD-08/13/04-12:00:00-BRI-stuffed-0.1.0-RC4a with Cisco 
ATA-186 3.1.1 atamgcp

We are used to make an special ;) blind transfer like 
(Flash)Number(Hangup before anyone answers or ring).
Then * crashes (see below) if the man in the middle is an cisco-ata-186-mgcp

If one waits until the last one rings, then hangup, everything is fine.
If one waits until the last one  answers, then hangup, everything is 
fine, too.

Any hints?


mgcp debug on:

   -- Executing AGI("Zap/7-1", "nuller.agi") in new stack
    -- Launched AGI Script /home/kpj/pbx/var/lib/asterisk/agi-bin/nuller.agi
    -- Accepting call from '01635571857' to '8551' on channel
0/1, span 3
    -- AGI Script nuller.agi completed, returning 0
    -- Executing Dial("Zap/7-1",
"MGCP/aaln/1@192.168.1.26||") in new stack
    -- MGCP mgcp_request(aaln/1@192.168.1.26)
    -- MGCP cw: 0, dnd: 0, so: 0, sno: 0
    -- MGCP mgcp_new(MGCP/aaln/1@192.168.1.26-1) created in state: Down
    -- Called aaln/1@192.168.1.26
    -- MGCP/aaln/1@192.168.1.26-1 is ringing
    -- Endpoint 'aaln/1@192.168.1.26-1' observed 'hd'
    -- MGCP/aaln/1@192.168.1.26-1 answered Zap/7-1
gw-bzo*CLI> mgcp debug on
Usage: mgcp debug
       Enables dumping of MGCP packets for debugging purposes
    -- Endpoint 'aaln/1@192.168.1.26-1' observed 'hf'
    -- Swapping 1 for 0 on aaln/1@192.168.1.26
    -- MGCP Muting 1 on aaln/1@192.168.1.26
    -- Started music on hold, class 'default', on Zap/7-1
    -- MGCP mgcp_new(MGCP/aaln/1@192.168.1.26-0) created in state: Down
    -- Endpoint 'aaln/1@192.168.1.26-0' observed '8'
    -- Endpoint 'aaln/1@192.168.1.26-0' observed '7'
    -- Endpoint 'aaln/1@192.168.1.26-0' observed 'hu'
    -- Stopped music on hold on Zap/7-1
Oct 15 13:32:58 NOTICE[100377]: chan_mgcp.c:1151 mgcp_fixup: 
mgcp_fixup(Zap/7-1, Zap/7-1<MASQ>)
    -- Swapping 0 for 1 on aaln/1@192.168.1.26
Oct 15 13:32:58 WARNING[14350]: chan_mgcp.c:3033 handle_request: 
Transfer attempt 
failed

Thomas Dingermann wrote:
> Hi all,
>
> i am using CVS-HEAD-08/13/04-12:00:00-BRI-stuffed-0.1.0-RC4a with 
> Cisco ATA-186 3.1.1 atamgcp
>
> We are used to make an special ;) blind transfer like 
> (Flash)Number(Hangup before anyone answers or ring).
> Then * crashes (see below) if the man in the middle is an 
> cisco-ata-186-mgcp
>
> If one waits until the last one rings, then hangup, everything is fine.
> If one waits until the last one  answers, then hangup, everything is 
> fine, too.
>
> Any hints?
>
>
> mgcp debug on:
>
>   -- Executing AGI("Zap/7-1", "nuller.agi") in new
stack
>    -- Launched AGI Script 
> /home/kpj/pbx/var/lib/asterisk/agi-bin/nuller.agi
>    -- Accepting call from '01635571857' to '8551' on
channel 0/1, span 3
>    -- AGI Script nuller.agi completed, returning 0
>    -- Executing Dial("Zap/7-1",
"MGCP/aaln/1@192.168.1.26||") in new
> stack
>    -- MGCP mgcp_request(aaln/1@192.168.1.26)
>    -- MGCP cw: 0, dnd: 0, so: 0, sno: 0
>    -- MGCP mgcp_new(MGCP/aaln/1@192.168.1.26-1) created in state: Down
>    -- Called aaln/1@192.168.1.26
>    -- MGCP/aaln/1@192.168.1.26-1 is ringing
>    -- Endpoint 'aaln/1@192.168.1.26-1' observed 'hd'
>    -- MGCP/aaln/1@192.168.1.26-1 answered Zap/7-1
> gw-bzo*CLI> mgcp debug on
> Usage: mgcp debug
>       Enables dumping of MGCP packets for debugging purposes
>    -- Endpoint 'aaln/1@192.168.1.26-1' observed 'hf'
>    -- Swapping 1 for 0 on aaln/1@192.168.1.26
>    -- MGCP Muting 1 on aaln/1@192.168.1.26
>    -- Started music on hold, class 'default', on Zap/7-1
>    -- MGCP mgcp_new(MGCP/aaln/1@192.168.1.26-0) created in state: Down
>    -- Endpoint 'aaln/1@192.168.1.26-0' observed '8'
>    -- Endpoint 'aaln/1@192.168.1.26-0' observed '7'
>    -- Endpoint 'aaln/1@192.168.1.26-0' observed 'hu'
>    -- Stopped music on hold on Zap/7-1
> Oct 15 13:32:58 NOTICE[100377]: chan_mgcp.c:1151 mgcp_fixup: 
> mgcp_fixup(Zap/7-1, Zap/7-1<MASQ>)
>    -- Swapping 0 for 1 on aaln/1@192.168.1.26
> Oct 15 13:32:58 WARNING[14350]: chan_mgcp.c:3033 handle_request: 
> Transfer attempt 
> failed                                                                  
> ______
Hey There,
I had a similar problem running CVS HEAD 02/09/05. An Attended transfer 
that wasn't completed caused the channel to lockup. with a bunch of:
Mar 16 14:12:12 WARNING[8904]: channel.c:523 ast_channel_walk_locked: 
Avoided deadlock for 'MGCP/aaln/1@192.168.10.5-1', 10 retries!

messages.. Did you ever find a solution??

Thanks,
Brett