[fpc-pascal] Need help with a backtrace from fpc 2.6.4

[Dimitrios Chr. Ioannidis]

Hi all,


   i have an app, that is running at approx. 300 pc's with os's varying 
from xp to win 10 ( all windows ).

   All ( almost ) the pc's are controlled by the company I work for and 
their installation is a simply img transfer to a new hdd ( preconfigured 
windows images bundle).

   Now, I have 2 or 3 installations with win xp ( I know that xp is old 
but the customer wants what the customer wants ) which the app ( a 
windows service ), doesn't behave correctly. The support people even 
reinstalled the os, check with other similar xp installations the 
settings to be identical etc.

   So I installed the debug build of the app ( FYI it's a windows service 
), transfer gdb to the client pc and took a backtrace to see what is 
wrong. I don't understand why in one pc with win xp same locale, 
codepage, etc works and in those machines chokes here :

[fpc 2.6.4 fixes branch, lazarus 1.6.1 rev: 52282, windows xp sp 3 greek 
locale ]


#0  DOENCODEDATE (YEAR=64001, MONTH=64176, DAY=1)
     at ../objpas/sysutils/dati.inc:29
         result = 127269377
         DOENCODEDATE = 127269377
         RESULT = 127269377
         D = 42538
#1  0x004302eb in SYSTEMTIMETODATETIME (SYSTEMTIME=...)
     at ../objpas/sysutils/dati.inc:223
         result = 42538
         SYSTEMTIMETODATETIME = 42538
         RESULT = 42538
#2  0x004303b1 in NOW () at ../objpas/sysutils/dati.inc:263
         result = 42538
         NOW = 42538
         RESULT = 42538
         SYSTEMTIME = {WYEAR = 2016, WMONTH = 6, WDAYOFWEEK = 5, WDAY = 
17,
           WHOUR = 13, WMINUTE = 54, WSECOND = 44, WMILLISECONDS = 474,
           YEAR = 2016, MONTH = 6, DAYOFWEEK = 5, DAY = 17, HOUR = 13,
           MINUTE = 54, SECOND = 44, MILLISECOND = 474}
#3  0x0053bf1f in TIDENTITYHEADERINFO__PROCESSHEADERS (
     this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Pro
tocols/IdHTTPHeaderInfo.pas:452
         LSECS = 546620041212591096
         LVALUE = 0x0
         LCRANGE = 0x0
         LILENGTH = 0x0
#4  0x0053df19 in TIDREQUESTHEADERINFO__PROCESSHEADERS (
     this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Pro
tocols/IdHTTPHeaderInfo.pas:935
No locals.
#5  0x00518785 in TIDCUSTOMHTTPSERVER__DOEXECUTE (ACONTEXT=0x185365c,
     this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Pro
tocols/IdCustomHTTPServer.pas:1291
         ACONTEXT = 0x185365c
         result = false
         LREQUESTINFO = 0x185c434
         LRESPONSEINFO = 0x185c7b4
         I = 6
         S = 0x185cb64 '1'
         LINPUTLINE = 0x185cb7c 'GET /'
         LRAWHTTPCOMMAND = 0x185c3bc 'GET / HTTP/1.1'
         LCMD = 0x0
         LCONTENTTYPE = 0x0
         LAUTHTYPE = 0x0
         LURI = 0x41a708
         LCONTINUEPROCESSING = true
         LCLOSECONNECTION = true
         LCONN = 0x1853444
---Type <return> to continue, or q <return> to quit---
         LENCODING = {<IUNKNOWN> = {}, }
         DOEXECUTE = false
         RESULT = false
#6  0x0051d5f5 in TIDCONTEXT__RUN (this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Cor
e/IdContext.pas:185
         result = 224
         RUN = 224
         RESULT = 224
#7  0x00540104 in TIDTASK__DORUN (this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Cor
e/IdTask.pas:136
         result = 68
         DORUN = 68
         RESULT = 68
#8  0x00537e94 in TIDTHREADWITHTASK__RUN (this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Cor
e/IdThread.pas:697
No locals.
#9  0x005373b2 in TIDTHREAD__EXECUTE (this=<error reading variable>)
     at C:/Users/dimitris/Programming/Projects/R_1.2.4/3rdparty/indy/Cor
e/IdThread.pas:428
No locals.
#10 0x0041da48 in THREADPROC (THREADOBJPTR=0x1852934)
     at ../objpas/classes/classes.inc:97
         result = 25502716
         THREADPROC = 25502716
         RESULT = 25502716
         FREETHREAD = 248
         THREAD = 0x1852934
#11 0x00410222 in THREADMAIN (PARAM=0x795fa01) at ../win/systhrd.inc:228
         result = 127269377
         THREADMAIN = 127269377
         RESULT = 127269377
         TI = {F = {function  (POINTER) : LONGINT} 0x795ffa8, P = 
0x1852934,
           STKLEN = 4194304}
#12 0x7c80b729 in KERNEL32!GetModuleFileNameA ()
    from C:\WINDOWS\system32\kernel32.dll
No symbol table info available.
#13 0x00000000 in ?? ()
No symbol table info available.
(gdb)


Any hint ?

regards,

-- 
Dimitrios Chr. Ioannidis