[sr-dev] [tracker] Comment added: Kamailio 3.1.3 crash

[sip-router]

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The following task has a new comment added:

FS#122 - Kamailio 3.1.3 crash
User who did this - Jasmin Schnatterbeck (jasmin)

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Hello,

the cfg for the query is:

route["CDR_FINALIZE"] {
         sql_query("kdb","UPDATE `kamailio_cdr` SET `state`='completed', `utctime_dlgend`=UTC_TIMESTAMP() WHERE `hash_id`='$dlg(h_id)' AND `hash_entry`=$dlg(h_entry)","res");
}


This route is called from event_route[tm:local-request] if request method is BYE (triggered by mediaproxy) and from normal request route, if loose routing and request method is BYE.

I am wondering why the $dlg variables were not set in the case, which you extracted from the gdb output.
Furthermore I guess that the query failed, because the following is invalid:

WHERE `hash_id`='<null>' AND `hash_entry`=<null>

Because <null> is not a valid integer...

Is it possible, that a failed query results in a crash? Because normally, the request works (no <null> values) and kamailio (normally) does not crash...

Another idea: that is a result of the crashing child, because then kamailio terminates all childs and (guess) as a result of that, mediaproxy signals BYE to all dialogs - and the dialogs do not exist anymore (because kamailio is terminating), then $dlg is not available...

Jasmin
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=122#comment180

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