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Summary:ASTERISK-29100: chan_sip: Crash on high latency link
Reporter:Joshua Elson (joshelson)Labels:
Date Opened:2020-09-28 18:24:24Date Closed:
Priority:MinorRegression?
Status:Open/NewComponents:Channels/chan_sip/General
Versions:17.7.0 Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) asterisk-core-20200928-175103-brief.txt
( 1) asterisk-core-20200928-175103-full.txt
( 2) asterisk-core-20200928-175103-info.txt
( 3) asterisk-core-20200928-175103-locks.txt
( 4) asterisk-core-20200928-175103-thread1.txt
( 5) core-2020-09-27T16-28-43-0600-brief.txt
( 6) core-2020-09-27T16-28-43-0600-full.txt
( 7) core-2020-09-27T16-28-43-0600-locks.txt
( 8) core-2020-09-27T16-28-43-0600-thread1.txt
Description:Seeing crashes in unusual and very slow network conditions on a transoceanic link. These are SIP.js clients connected via websockets, but the crash appears to be quite reproducible.
Comments:By: Asterisk Team (asteriskteam) 2020-09-28 18:24:25.306-0500

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution. Please note that log messages and other files should not be sent to the Sangoma Asterisk Team unless explicitly asked for. All files should be placed on this issue in a sanitized fashion as needed.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].

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By: Joshua Elson (joshelson) 2020-09-28 18:25:28.078-0500

This crash is for 17.1, but same identical issue is reproducible on 17.7.
By: Joshua Elson (joshelson) 2020-09-28 19:15:18.518-0500

Here's the crash on 17.7.0.
By: Joshua C. Colp (jcolp) 2020-09-29 04:10:08.841-0500

The chan_sip channel driver is in 'extended' support status and is supported only by community members.  Your issue is in the queue. Your patience is appreciated as a community developer may work the issue when time and resources become available.

Asterisk is an open source project and community members work the issues on a voluntary basis. You are welcome to develop your own patches and submit them to the project.[1]

If you are not a programmer and you are in a hurry to see a patch provided then you might try rallying support on the Asterisk users mailing list or forums.[2] Another alternative is offering a bug bounty on the asterisk-dev mailing list.[3] Often a little incentive can go a long way.

[1]: https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process
[2]: http://www.asterisk.org/community/discuss
[3]: https://wiki.asterisk.org/wiki/display/AST/Asterisk+Bug+Bounties


By: Joshua Elson (joshelson) 2020-09-30 10:58:20.763-0500

Totally know this one is in extended support, but if anyone had any quick insights on the best path to solve this or to get a clean repro, would certainly be appreciated. Still working through this on our end as well.