[asterisk-bugs] [JIRA] (ASTERISK-28395) Asterisk occasionally fails to hangup channels

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=247004#comment-247004 ] 

Asterisk Team commented on ASTERISK-28395:
------------------------------------------

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> Asterisk occasionally fails to hangup channels
> ----------------------------------------------
>
>                 Key: ASTERISK-28395
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28395
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_iax2, Channels/chan_sip/General, PBX/General
>    Affects Versions: 13.8.2
>         Environment: Debian Linux
>            Reporter: Stefan Repke
>
> Our Asterisk servers occasionally fail to hangup channels (IAX2 or SIP).
> We are running version: 13.8.2.
> The sympthoms are a follows:
> * We observer a HangupRequest event via AMI but the Hangup event does not occur.
> * One Asterisk thread starts consuming 100% CPU, i.e. burning one core.
> * Strange warning messages occur in CLI and log repeatedly every few seconds:
> ** IAX case:
> {noformat}
> WARNING[15982] chan_iax2.c: Max retries exceeded to host 10.101.1.5 on IAX2/125-5832 (type = 6, subclass = 11, ts=119996, seqno=24)
> {noformat}
> ** SIP case:
> {noformat}
> WARNING[21518]: chan_sip.c:4333 __sip_autodestruct: Autodestruct on dialog 'e8954fa42ffee2d1ace1ac4c6323d990 at 10.249.4.97' with owner SIP/999222-0000149c in place (Method: BYE). Rescheduling destruction for 10000 ms
> {noformat}
> * The channel stays alive (i.e. still visible via CLI, AMI status, ARI, etc).
> * The channel cannot be hungup (via CLI, AMI, etc).
> * The only fix is to restart Asterisk.
> Up to now, we where facing this problem three times:
> # IAX2 channel, thread {{bridge_channel_depart_thread}}
> # SIP channel, thread {{pbx_thread}}
> # SIP channel, thread {{pbx_thread}}, with thread debugging enabled (includes {{strace}} output).
> I've attached the debug info for each of the above cases.
> Maybe, this bug is related to:
> * ASTERISK-25911
> * ASTERISK-27538
> ---
> If I can image, that you need more detailed information to track down this bug.
> If so, please let me know how I can provide it and I will try to reproduce this problem.



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