Hi to all,
I'm developing a LabVIEW program for a long term monitoring
application of serial (RS232) devices. On the target system the
program runs as executable. At start-up everything runs fine. After
several hours (usually 1..3) the application crashes with an access
violation. I did a lot of "debugging" on executable level, because the
error seems not to occur in the development environment. I found out,
that the fault has nothing to do with the serial communication,
because it occurs also in a "demo mode", where no communication with
devices is performed. I studied the Dr.Watson log files and found out,
that the fault occurs always at the same code position. (See below for
details.) The fault occurs under LabVIEW 6.0, 6.0.2 and also 6.1,
(resp. the according runtime). At the moment The Dr.Watson log
suggests, that the LabVIEW internal function "CancelOnOccur" performs
a jump to address 0x00000000, what of course will cause a GPF. The
symbol for this function can be found in the runtime DLL's as well as
the LabVIEW.exe. The development system and the target are Win2k
machines with all available patches/updates including SP4. Here are
some interesting parts from the Dr.Watson Log (sorry its in german):
Anwendungsausnahme aufgetreten:
Anwendung: (pid=832)
Wann: 27.03.2004 @ 12:02:28.522
Ausnahmenummer: c0000005 (Zugriffsverletzung)
*----> Systeminformationen <----*
Computername: - removed for privacy -
Benutzername: - removed for privacy -
Prozessoranzahl: 1
Prozessortyp: x86 Family 6 Model 8 Stepping 6
Windows 2000-Version: 5.0
Aktuelles Build: 2195
Service Pack: 4
Aktueller Typ: Uniprocessor Free
Firma: - removed for privacy -
Besitzer: - removed for privacy -
.....
Statusabbild für Threadkennung 0x4a0
eax=00ca6830 ebx=00000003 ecx=00014988 edx=00ca6830 esi=00000000
edi=f1d00001
eip=00000000 esp=01fcff14 ebp=01fcff30 iopl=0 nv up ei ng nz
ac po nc
cs=001b ss=0023 ds=0023 es=0023 fs=0038 gs=0000
efl=00000296
Funktion: <nosymbols>
FEHLER ->00000000 ???
00000001 ???
00000002 ???
00000003 ???
*----> Stack Back Trace <----*
FramePtr ReturnAd Param#1 Param#2 Param#3 Param#4 Function Name
01FCFF10 3023F32E F1D00001 00000001 00D30368 00000000 !<nosymbols>
01FCFF30 300797D2 7FB84F88 7FE5AEA8 00000001 7FEC01B8 !CancelOnOccur
01FCFF50 300C5AAC 7FE5B0D8 00000001 7FEC01B8 00000001 !GetSetLVInfo
01FCFF88 30075DEE 7FEC01B8 00000001 77E9BFF2 00CC0DF8 !ImaqReturnIDs
01FCFFA0 3026E759 7FEC01B8 30352068 0012E0EC 01FCFFEC !ConfigExec
01FCFFB4 77E7B382 00CC0DF8 30352068 0012E0EC 00CC0DF8 !GetTextRect
01FCFFEC 00000000 3026E730 00CC0DF8 00000000 00505A4D
kernel32!lstrcmpiW
*----> Raw Stack Dump <----*
01fcff14 2e f3 23 30 01 00 d0 f1 - 01 00 00 00 68 03 d3 00
..#0........h...
01fcff24 00 00 00 00 30 68 ca 00 - 88 67 93 7f 50 ff fc 01
....0h...g..P...
01fcff34 d2 97 07 30 88 4f b8 7f - a8 ae e5 7f 01 00 00 00
...0.O..........
01fcff44 b8 01 ec 7f 00 00 00 00 - 01 00 00 00 88 ff fc 01
................
01fcff54 ac 5a 0c 30 d8 b0 e5 7f - 01 00 00 00 b8 01 ec 7f
.Z.0............
01fcff64 01 00 00 00 b8 01 ec 7f - f8 0d cc 00 10 2d cb 7f
.............-..
01fcff74 94 3d c4 7f 00 00 00 00 - 00 00 00 00 00 00 00 00
.=..............
01fcff84 00 00 00 00 a0 ff fc 01 - ee 5d 07 30 b8 01 ec 7f
.........].0....
01fcff94 01 00 00 00 f2 bf e9 77 - f8 0d cc 00 b4 ff fc 01
.......w........
01fcffa4 59 e7 26 30 b8 01 ec 7f - 68 20 35 30 ec e0 12 00 Y.&0....h
50....
01fcffb4 ec ff fc 01 82 b3 e7 77 - f8 0d cc 00 68 20 35 30
.......w....h 50
01fcffc4 ec e0 12 00 f8 0d cc 00 - 00 80 fd 7f 05 00 00 c0
................
01fcffd4 c0 ff fc 01 60 fb fc 01 - ff ff ff ff b4 1b ec 77
....`..........w
01fcffe4 f0 2a e7 77 00 00 00 00 - 00 00 00 00 00 00 00 00
.*.w............
01fcfff4 30 e7 26 30 f8 0d cc 00 - 00 00 00 00 4d 5a 50 00
0.&0........MZP.
01fd0004 02 00 00 00 04 00 0f 00 - ff ff 00 00 b8 00 00 00
................
01fd0014 00 00 00 00 40 00 1a 00 - 00 00 00 00 00 00 00 00
[EMAIL PROTECTED]
01fd0024 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00
................
01fd0034 00 00 00 00 00 00 00 00 - 00 01 00 00 ba 10 00 0e
................
01fd0044 1f b4 09 cd 21 b8 01 4c - cd 21 90 90 54 68 69 73
....!..L.!..This
Any ideas fromm other users?
Is there someone at NI who can support this issue?
If there is more information needed, I can provide it.
Thanks in advance!
Best Regards
