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

[Abhay Gupta (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=239731#comment-239731 ] 

Abhay Gupta commented on ASTERISK-27205:
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Never changed the default setting of timing more so because on all digium blogs pthread is considered to be least stable and timerfd as most stable and is default on new kernels 

> res_rtp_asterisk: 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_pjsip, Resources/res_rtp_asterisk
>    Affects Versions: 13.15.0, 13.17.0
>         Environment: Linux Ubuntu kernel 4.4.0-83 with glibc 2.23 and asterisk using internal PJSIP 
>            Reporter: Abhay Gupta
>            Assignee: Unassigned
>         Attachments: 14_50.txt, 17_08.txt, 24_08_12_00_bt_log, bt.txt, filename.txt, full_100000, gdb_18aug.txt, logs.txt, log.txt, Screen Shot 2017-09-12 at 12.34.05 PM.png, Screen Shot 2017-09-12 at 12.36.06 PM.png
>
>
> 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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