[asterisk-bugs] [JIRA] (ASTERISK-27205) Asterisk crash with netlink error

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-27205?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-27205:
------------------------------------

    Assignee: Abhay Gupta
      Status: Waiting for Feedback  (was: Triage)

If possible, please also gather a debug log when you capture the new trace:

https://wiki.asterisk.org/wiki/display/AST/Collecting+Debug+Information

Turning up logging may generate large log files so you will need to rotate them. We'll only need the last few thousand lines. No need to attach a huge file. Be sure to sanitize any private information if necessary since this is from a production system.

> Asterisk crash with netlink error 
> ----------------------------------
>
>                 Key: ASTERISK-27205
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27205
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_rtp_asterisk
>    Affects Versions: 13.15.0
>         Environment: Linux Ubuntu kernel 4.4.0-83 with glibc 2.23 and asterisk using internal PJSIP 
>            Reporter: Abhay Gupta
>            Assignee: Abhay Gupta
>         Attachments: 14_50.txt, 17_08.txt, bt.txt, gdb_18aug.txt
>
>
> There is segmentation fault that causes crash and bt is attached , it seems that Nelink error is the cause and can be seen from this changelog of glibc 
> https://abi-laboratory.pro/tracker/changelog/glibc/2.23/log.html
> getaddrinfo now detects certain invalid responses on an internal netlink
>   socket.  If such responses are received, an affected process will
>   terminate with an error message of "Unexpected error <number> on netlink
>   descriptor <number>" or "Unexpected netlink response of size <number> on
>   descriptor <number>".  The most likely cause for these errors is a
>   multi-threaded application which erroneously closes and reuses the netlink
>   file descriptor while it is used by getaddrinfo.
> this signal is not captured causing it to crash .



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