I can go to IRC when needed. Just tell me when. Regards, Anton. On Monday 10 November 2008 21:09, Matthew Fredrickson wrote: > Anton wrote: > > Hi Matthew, > > > > One of the ss7 bugs I've discovered on quick tests, and > > it's critical to normal functionality: > > > > short description: ss7 does not release channels on the > > other side channel reset/failure. > > Crap, yes. I don't know why I still haven't fixed > that... keep forgetting. Most of the time it's not a > problem, because if we receive an individual reset (RSC > message) we *do* actually drop the call. It's only on > group resets that I still haven't added the code to drop > it. If you're on AIM, MSN, or anything like that and can > get in contact with me, I would like to fix this (should > be just about 5 minutes of coding and a retest from your > test scenario). > > Matthew Fredrickson > Digium, Inc. > > > It means, when there are some amount of calls going > > through the system, and remote switch just going down > > abnormally (and than may restore), libss7 asterisk > > would not release the channels, which was in use. > > > > used: asterisk 1.6.0.1 > > libss7 1.0.2 > > dahdi-linux 2.0.0 > > dahdi-tools 2.0.0 > > > > To reproduce the error: > > > > 1st box asterisk libss7 > > > > 2nd box asterisk chan_ss7 (1.4.21.1) > > > > (though I think 2nd box version or switchtype does not > > matter at all, considering the symptoms) > > > > Making 5 looped calls, which after 5 calls end up with > > Echo() app. to test our voice. Than just stopping box2 > > (chan_ss7) side by "stop now" - and we'll see that on > > box1 core show channels will have all calls in progress > > not released. This call wll remain unreleased even when > > calling party hangup, so making channels stuck forever. > > This is despite, that libss7 acknowledged the other > > side by sending reset ask: > > > > [Nov 9 22:11:02] DEBUG[10593]: chan_dahdi.c:9494 > > ss7_linkset: Got Reset for CICs 1 to 15: Acknowledging > > [Nov 9 22:11:02] DEBUG[10593]: chan_dahdi.c:9494 > > ss7_linkset: Got Reset for CICs 17 to 31: Acknowledging > > > > *CLI> dahdi show channels group 1 > > Chan Extension Context Language MOH > > Interpret Blocked State 1 incoming > > default In > > Service 2 incoming default > > In Service 3 > > incoming default > > In Service 4 3772059 incoming > > default In Service 5 > > incoming default > > In Service 6 incoming > > default In Service 7 > > incoming default > > In Service 8 incoming > > default In Service 9 > > incoming default > > In Service 10 3772059 incoming > > default In Service 11 > > incoming default > > In Service 12 incoming > > default In Service 13 > > incoming default > > In Service 14 incoming > > default In Service 15 > > incoming default > > In Service 17 incoming > > default R In Service 18 > > incoming default > > In Service 19 incoming > > default In Service 20 > > incoming default > > In Service 21 incoming > > default In Service 22 > > incoming default > > In Service 23 3772059 incoming > > default In Service 24 > > incoming default > > In Service 25 incoming > > default In Service 26 > > incoming default > > In Service 27 3772059 incoming > > default In Service 28 > > incoming default > > In Service 29 3772059 incoming > > default In Service 30 > > incoming default > > In Service 31 incoming > > default In Service *CLI> > > > > while other side is: > > > > *CLI> core show channels > > Channel Location State > > Application(Data) 0 active channels > > 0 active calls > > *CLI> ss7 linestat > > Linkset: east1 > > CIC 1 Idle > > CIC 2 Idle > > CIC 3 Idle > > CIC 4 Idle > > CIC 5 Idle > > CIC 6 Idle > > CIC 7 Idle > > CIC 8 Idle > > CIC 9 Idle > > CIC 10 Idle > > CIC 11 Idle > > CIC 12 Idle > > CIC 13 Idle > > CIC 14 Idle > > CIC 15 Idle > > CIC 17 Idle > > CIC 18 Idle > > CIC 19 Idle > > CIC 20 Idle > > CIC 21 Idle > > CIC 22 Idle > > CIC 23 Idle > > CIC 24 Idle > > CIC 25 Idle > > CIC 26 Idle > > CIC 27 Idle > > CIC 28 Idle > > CIC 29 Idle > > CIC 30 Idle > > CIC 31 Idle > > *CLI> > > > > and we've asknowledged the reset: > > > > [Nov 9 22:11:02] DEBUG[10593]: chan_dahdi.c:9494 > > ss7_linkset: Got Reset for CICs 1 to 15: Acknowledging > > [Nov 9 22:11:02] DEBUG[10593]: chan_dahdi.c:9494 > > ss7_linkset: Got Reset for CICs 17 to 31: > > > > There is probably missing channel release on ss7 > > channel reset and asterisk itself.
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