[OpenSIPS-Devel] [opensips] OpenSIPS - crash when terminating a dialog (#712)

[Nick]

Hello.

A dialog is created using the function: create_dialog("Pp")
If a dialog between softphones ends without a proper BYE request (e.g. due to network failure), then after the dialog is terminated OpenSIPS crashes with the following log:

```**Log:**
Dec  1 16:04:25 nikita-debian /usr/local/opensips/sbin/opensips[25407]: INFO:dialog:rep
ly_from_caller: terminating dialog ( due to timeout ) with callid = [drwXg1JypdFTX2aGfA
-p2Q..]
Dec  1 16:04:25 nikita-debian /usr/local/opensips/sbin/opensips[25407]: INFO:dialog:rep
ly_from_callee: terminating dialog ( due to timeout ) with callid = [drwXg1JypdFTX2aGfA
-p2Q..]
Dec  1 16:04:30 nikita-debian /usr/local/opensips/sbin/opensips[25409]: CRITICAL:dialog
:unref_dlg: bogus ref -1 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 
'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' '960188444'
Dec  1 16:04:30 nikita-debian /usr/local/opensips/sbin/opensips[25409]: CRITICAL:dialog
:unref_dlg: bogus ref -2 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 
'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' '960188444'
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:core:pars
e_to_param: unexpected char [T] in status 29: <<;tag=Ping >> .
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:core:pars
e_from_header: bad from header
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:acc:acc_p
reparse_req: failed to preparse request
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: CRITICAL:dialog
:unref_dlg: bogus ref -2 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 
'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:core:pars
e_to_param: unexpected char [T] in status 29: <<;tag=Ping >> .
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:core:get_
hdr_field: bad to header
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: INFO:core:parse
_headers: bad header field
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:tm:buf_to
_sip_msg: parse_headers failed
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: ERROR:tm:t_uac:
 failed to build sip_msg from buffer
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: CRITICAL:dialog:unref_dlg: bogus ref -2 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:04:50 nikita-debian /usr/local/opensips/sbin/opensips[25409]: CRITICAL:dialog:unref_dlg: bogus ref -3 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:04:55 nikita-debian /usr/local/opensips/sbin/opensips[25408]: CRITICAL:dialog:unref_dlg: bogus ref -4 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:04:55 nikita-debian /usr/local/opensips/sbin/opensips[25408]: CRITICAL:dialog:unref_dlg: bogus ref -6 with cnt 2 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:04:55 nikita-debian /usr/local/opensips/sbin/opensips[25408]: CRITICAL:dialog:unref_dlg: bogus ref -7 with cnt 1 for dlg 0x7f4731b8ad40 [2435:1995373175] with clid 'drwXg1JypdFTX2aGfA-p2Q..' and tags '96505036' 'Ping Time'
Dec  1 16:05:43 nikita-debian /usr/local/opensips/sbin/opensips[25397]: INFO:core:handle_sigs: child process 25409 exited by a signal 11
Dec  1 16:05:43 nikita-debian /usr/local/opensips/sbin/opensips[25397]: INFO:core:handle_sigs: core was generated
Dec  1 16:05:43 nikita-debian /usr/local/opensips/sbin/opensips[25397]: INFO:core:handle_sigs: terminating due to SIGCHLD
Dec  1 16:05:43 nikita-debian /usr/local/opensips/sbin/opensips[25397]: INFO:core:cleanup: cleanup
Dec  1 16:06:43 nikita-debian /usr/local/opensips/sbin/opensips[25397]: CRITICAL:core:sig_alarm_abort: BUG - shutdown timeout triggered, dying...```

---
Reply to this email directly or view it on GitHub:
https://github.com/OpenSIPS/opensips/issues/712
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