PANIC in bearerbox1.4.3 Urgent

Dear Sir

we have found below PANIC at bearerbox1.4.3, reporting you the same with
addr2line and bearerbox_server.log
kindly let me know the possible solution and reason

regards
Manoj Raul
   addr2line -e bearerbox-1.4.3 0x47b5fb 0x47be79 0x4800c8 0x43fc09 0x43ff22
0x41e9a2 0x415160 0x415f4d 0x472675 0x3315c062e7 0x33150ce3bd

/root/gateway-1.4.3/gwlib/log.c:541
/root/gateway-1.4.3/gwlib/octstr.c:2480
/root/gateway-1.4.3/gwlib/octstr.c:352
/root/gateway-1.4.3/gw/sms.c:261
/root/gateway-1.4.3/gw/sms.c:274
/root/gateway-1.4.3/gw/smscconn.c:519
/root/gateway-1.4.3/gw/bb_smscconn.c:1114
/root/gateway-1.4.3/gw/bb_smscconn.c:558
/root/gateway-1.4.3/gwlib/gwthread-pthread.c:135
??:0
??:0

   2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: gwlist_len = 2

2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8bde90 vs 0x1f8bde90)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8cfff0 vs 0x1f8bde90)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8bde90 vs 0x1f8bde90)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: time to sleep 30.00
secs.
2009-05-11 13:06:49 [16955] [6] DEBUG: Optional parameter tag (0x0210)
2009-05-11 13:06:49 [16955] [6] DEBUG: Optional parameter length read as 1
2009-05-11 13:06:49 [16955] [6] DEBUG: SMPP[smpp_Gateway21_2]: Got PDU:
2009-05-11 13:06:49 [16955] [6] DEBUG: SMPP PDU 0x2aaaac000dd0 dump:
2009-05-11 13:06:49 [16955] [6] DEBUG:   type_name: bind_transmitter_resp
2009-05-11 13:06:49 [16955] [6] DEBUG:   command_id: 2147483650 = 0x80000002

2009-05-11 13:06:49 [16955] [6] DEBUG:   command_status: 0 = 0x00000000
2009-05-11 13:06:49 [16955] [6] DEBUG:   sequence_number: 1 = 0x00000001
2009-05-11 13:06:49 [16955] [6] DEBUG:   system_id: "DOTGLO2"
2009-05-11 13:06:49 [16955] [6] DEBUG:   sc_interface_version: 52 =
0x00000034
2009-05-11 13:06:49 [16955] [6] DEBUG: SMPP PDU dump ends.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: gwlist_len = 2
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8cfff0 vs 0x1f8cfff0)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8bde90 vs 0x1f8cfff0)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: handling message
(0x1f8cfff0 vs 0x1f8cfff0)
2009-05-11 13:06:49 [16955] [16] DEBUG: Routing failed, re-queued.
2009-05-11 13:06:49 [16955] [16] DEBUG: sms_router: time to sleep 30.00
secs.2009-05-11 13:06:59 [16955] [12] DEBUG:   sc_interface_version: 52 =
0x00000034
2009-05-11 13:06:59 [16955] [12] DEBUG: SMPP PDU dump ends.
2009-05-11 13:06:59 [16955] [16] DEBUG: sms_router: gwlist_len = 2
2009-05-11 13:06:59 [16955] [16] DEBUG: sms_router: handling message
(0x1f8bde90 vs 0x1f8bde90)
2009-05-11 13:06:59 [16955] [16] PANIC: gwlib/octstr.c:2481:
seems_valid_real: Assertion `ostr != NULL' failed. (Called from
gwlib/octstr.c:351:octstr_copy_
real.)
2009-05-11 13:06:59 [16955] [16] PANIC:
/opt/smpf/sbin/bearerbox(gw_panic+0x15b) [0x47b5fb]
2009-05-11 13:06:59 [16955] [16] PANIC: /opt/smpf/sbin/bearerbox [0x47be79]
2009-05-11 13:06:59 [16955] [16] PANIC:
/opt/smpf/sbin/bearerbox(octstr_copy_real+0x48) [0x4800c8]
2009-05-11 13:06:59 [16955] [16] PANIC: /opt/smpf/sbin/bearerbox [0x43fc09]
2009-05-11 13:06:59 [16955] [16] PANIC:
/opt/smpf/sbin/bearerbox(sms_split+0x2f2) [0x43ff22]
2009-05-11 13:06:59 [16955] [16] PANIC:
/opt/smpf/sbin/bearerbox(smscconn_send+0x142) [0x41e9a2]
2009-05-11 13:06:59 [16955] [16] PANIC:
/opt/smpf/sbin/bearerbox(smsc2_rout+0x370) [0x415160]
2009-05-11 13:06:59 [16955] [16] PANIC: /opt/smpf/sbin/bearerbox [0x415f4d]
2009-05-11 13:06:59 [16955] [16] PANIC: /opt/smpf/sbin/bearerbox [0x472675]
2009-05-11 13:06:59 [16955] [16] PANIC: /lib64/libpthread.so.0
[0x3315c062e7]
2009-05-11 13:06:59 [16955] [16] PANIC: /lib64/libc.so.6(clone+0x6d)
[0x33150ce3bd]
~