What is "Trace DATA 1 CloseFlow :: Unknown Flow Mbox: 0x0"

Hi below attached is the TRACE i have got when I was trying to make a data call hwile the GPRS was under progress …can anybody tell me what is the reason for “Trace DATA 1 CloseFlow :: Unknown Flow Mbox: 0x0”

Trace 1 [GPRS]: GPRS EVENT ACTIVATE OK (cid=1): FCM open
Trace 25 Is Available 60 : 1
Trace 25 FCM subs 96 : 3
Trace 1 [GPRS]: FCM subscribe: 3
Trace 1 [GPRS]: FCM EVENT FLOW OPENNED: -> CONNECTED
Trace 1 Bearer event is 2
Trace 21 Get Mem 01087E94
Trace 21 Get Mem 01088004
Trace 25 FCM Snd Data 3 44 : 0
Trace 21 Get Mem 0108807C
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “220 NEWFTP X2 WS_FTP Server 5.0.4 (3217312082)”
Trace 1 [FTP<=] USER SecEMS0632

Trace 25 FCM Snd Data 3 57 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “331 Password required”
Trace 1 [FTP<=] PASS SecEmSyS$632

Trace 25 FCM Snd Data 3 59 : 0
Trace 1 [FTP=>] “230 user logged in”
Trace 1 [FTP<=] TYPE I

Trace 25 FCM Snd Data 3 48 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “200 Type set to IMAGE.”
Trace 1 Ftp_cxEventHandler event is :: 2
Trace 1 [FTP<=] CWD LNT

Trace 25 FCM Snd Data 3 49 : 0
Trace 1 In DataSend_Tmrhdlr
Trace L3RR 1 Unable to find the string of the remote trace in the file (ID = 4867)
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 010882B8
Trace 20 [ADL] tmr subs ; id 24 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 25 FCM Snd Data 3 49 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 0108832C
Trace 20 [ADL] tmr unsubs ; id 24 ; hdlr 0021E0BD (rem. time : -1)
Trace 20 [ADL] tmr subs ; id 25 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 010883A0
Trace 20 [ADL] tmr unsubs ; id 25 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 26 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 49 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 01088414
Trace 20 [ADL] tmr unsubs ; id 26 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 27 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 01088488
Trace 20 [ADL] tmr unsubs ; id 27 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 28 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 010884FC
Trace 20 [ADL] tmr unsubs ; id 28 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 29 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 01088570
Trace 20 [ADL] tmr unsubs ; id 29 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 30 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 010885E4
Trace 20 [ADL] tmr unsubs ; id 30 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 31 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 01088658
Trace 20 [ADL] tmr unsubs ; id 31 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 0 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 49 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 01088730
Trace 20 [ADL] tmr unsubs ; id 0 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 1 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 21 Get Mem 010887A4
Trace 20 [ADL] tmr unsubs ; id 1 ; hdlr 0021E0BD (rem. time : 1)
Trace 20 [ADL] tmr subs ; id 2 ; hdlr 0021E0BD ; val 30 ; cycl 0
Trace 1 event ADL_CALL_EVENT_RING_DATA…
Trace 32 A&&D unsubs -369082370 : -3
Trace 25 Is Available 50 : 1
Trace 25 FCM subs 80 : -20
Trace 1 Temp_g_cFCMGsmhandle : -20…
Trace 1 FCM_GSM is already subscribed…-20
Trace MMT 1 Unable to find the string of the remote trace in the file (ID = 10054)
Trace MMT 1 Unable to find the string of the remote trace in the file (ID = 10055)
Trace 21 Get Mem 01088810
Trace 1 event ADL_CALL_EVENT_RELEASE_ID
Trace 1 In DataSend_Tmrhdlr
Trace 1 Unable to find the string of the remote trace in the file (ID = 5293)
Trace 1 Unable to find the string of the remote trace in the file (ID = 5293)
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace L3RR 1 Unable to find the string of the remote trace in the file (ID = 5682)
Trace 1 [FTP=>] “250 CWD successful”
Trace 1 Ftp_cxEventHandler event is :: 0
Trace 1 Event WIP_CEV_DONE…in Ftp_cxEventHandler
Trace 1 [FTP<=] MKD DATE_20_09_2003

Trace 25 FCM Snd Data 3 61 : 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 25 FCM Snd Data 3 61 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “550 directory exists”
Trace 1 Ftp_cxEventHandler event is :: 1
Trace 1 Ftp_cxEventHandler connection error 550

Trace 1 [FTP<=] CWD DATE_20_09_2003

Trace 25 FCM Snd Data 3 61 : 0
Trace 1 [FTP=>] “250 CWD successful”
Trace 1 Ftp_cxEventHandler event is :: 0
Trace 1 Event WIP_CEV_DONE…in Ftp_cxEventHandler
Trace 1 [FTP<=] MKD MTR_ER300_PRIDE_

Trace 25 FCM Snd Data 3 62 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “550 directory exists”
Trace 1 Ftp_cxEventHandler event is :: 1
Trace 1 Ftp_cxEventHandler connection error 550

Trace 1 [FTP<=] CWD MTR_ER300_PRIDE_

Trace 25 FCM Snd Data 3 62 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 [FTP=>] “250 CWD successful”
Trace 1 Ftp_cxEventHandler event is :: 0
Trace 1 Event WIP_CEV_DONE…in Ftp_cxEventHandler
Trace 20 [ADL] tmr subs ; id 4 ; hdlr 0021076D ; val 30 ; cycl 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 Before wip_putFile
Trace 1 [FTP<=] PASV

Trace 25 FCM Snd Data 3 46 : 0
Trace 21 Get Mem 01088314
Trace 1 After wip_putFile
Trace 1 [FTP=>] “227 Entering Passive Mode (59,145,122,240,19,108).”
Trace 21 Get Mem 01088348
Trace 25 FCM Snd Data 3 44 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 [FTP<=] STOR MTR_ER300_PRIDE__Tamp_20_09_2003_16_37_08.dst

Trace 25 FCM Snd Data 3 92 : 0
Trace 1 Putfile event is :: 2
Trace 1 Putfile open
Trace 1 Putfile event is :: 6
Trace 1 Full data len is 796
Trace 25 FCM Snd Data 3 576 : 0
Trace 25 FCM Snd Data 3 300 : 0
Trace 1 Write status is 796
Trace 1 g_unOffset == g_unFtpDataLen
Trace 20 [ADL] tmr subs ; id 5 ; hdlr 00210559 ; val 300 ; cycl 0
Trace 1 [FTP=>] “150 Opening BINARY data connection for MTR_ER300_PRIDE__Tamp_20_09_2003_16_37_0”
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 20 [ADL] tmr unsubs ; id 23 ; hdlr 0021029D (rem. time : 8205)
Trace 1 CLOSING DATA CHANNEL in chan_Stop_TmrHdl…
Trace 1 CLOSING dst_putdata in chan_Stop_TmrHdl…
Trace 20 [ADL] tmr subs ; id 6 ; hdlr 0021008D ; val 30 ; cycl 0
Trace 1 CLOSING FTP CHANNEL
Trace 1 Cloding the FTP connection…
Trace 1 [WIP] closing TCPCLIENT 0x1088348
Trace 25 FCM Snd Data 3 40 : 0
Trace 21 Rel Mem 01088348
Trace 1 [WIP] closing WRAPPER 0x1088314
Trace 21 Rel Mem 01088314
Trace 1 [WIP] closing FTP_CONTROL 0x1087e94
Trace 1 [FTP<=] QUIT

Trace 25 FCM Snd Data 3 46 : 0
Trace 21 Rel Mem 0108807C
Trace 21 Rel Mem 01087E94
Trace 1 [WIP] closing TCPCLIENT 0x1088004
Trace 25 FCM Snd Data 3 40 : 0
Trace 21 Rel Mem 01088004
Trace 1 In DataSend_Tmrhdlr
Trace 25 FCM Snd Data 3 40 : 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 25 FCM Snd Data 3 40 : 0
Trace 1 In DataSend_Tmrhdlr
Trace 1 In DataSend_Tmrhdlr
Trace 1 Bearer Stopped in Bear_Stop_TmrHdl…
Trace 1 [GPRS]: stop: FCM close -> DISCONNECTING
Trace 1 [GPRS]: FCM unsubscribe (3)
Trace DATA 1 CloseFlow :: Unknown Flow Mbox: 0x0
Trace 1 Unable to find the string of the remote trace in the file (ID = 5877)