18 Jul
2019
18 Jul
'19
1:28 a.m.
Hi Romeu,
On Wed, Jul 17, 2019 at 06:17:31PM -0300, Romeu Medeiros wrote:
I some situations, when the MME lost connection with
the OSMO-MSC and
return this connection if I try send a MT-CSFB the OSMO-MSC is crashing.
that obviously shouldn't happen.
I get this error in the log:
<0006> sgs_iface.c:470 XXXXXXXXXX state == 1 conf_by_radio_contact_ind == 1
<0011> sgs_iface.c:251 (sub
IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269) Tx
PAGING-REQUEST suitable MME found, but no SGS connection present!
<0005> sgs_iface.c:480
SGs-UE(imsi:724210000000003)[0x563949b08fc0]{SGs-ASSOCIATED}: Will not Page
(no MME)
<0005> paging.c:101 Paging:
IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 for MNCC:
establish call: Starting paging failed (rc=-22)
<0001> gsm_04_08_cc.c:1922 trans(CC
IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 callref-0x1396
tid-255) Failed to allocate paging token.
Segmentation fault (core dumped)
Thanks. I created a bug at https://osmocom.org/issues/4117
I'll try why this happened, but I'm not
getting used to it in the OSMO
source code. Can you tell me (if you have time) how identify where this
crash is occouring?
It's the same as any other C program:
* compile with "-g"
* run it in gdb
* provoke the setfault
* take a "backtrace full" after the crash
It would be great if you could amend the bugtracker with that information,
but I would guess the information you provided is already sufficient for Philipp,
the implementor of the SGs support in OsmoMSC.
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
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