acethomasacethomas 2005.07.04 15:34 

Hello,

I'm exploring various functions in MQL4 and found that the "ArraySort()" function would SOMETIMES cause memory crash, I've tried to use local array, global array, with or without size initialization, the function just crashes out of control !! (I got a memory dump screen with forced me to quit MT4 , and the last function called is ArraySort() everytime)

It seems that the memory allocation or garbage collection is designed with mistakes (in fact, I can't find any documentation about array memory allocation or garbage collection). May the development term put this issue in the next patch.

Thanks so much

acethomasacethomas 2005.07.04 18:07 

sorry, what u mean by "fixed"? is it coming in build 176 ?

SlawaSlawa 2005.07.04 23:04 

download from our site updated version

acethomasacethomas 2005.07.06 07:16 

oh sorry, the bug was fixed, but now it appears again !!!! maybe it paste the crash dump here :

There has been a critical error
Time : 2005.07.06 11:10
Program : Client Terminal
Version : 4.00 (build: 175, Jul 4 2005)
Owner : MetaQuotes Software Corp. (MetaTrader)
OS : Windows XP Professional 5.1 Service Pack 2 (Build 2600)
Processors : 1, type 586, level 6
Memory : 523760/281276 kb
Exception : C0000005
Address : 00F6F3E1
Access Type : write
Access Addr : 40F310F4

Registers : EAX=00000001 CS=001b EIP=00F6F3E1 EFLGS=00010246
: EBX=00F6F3E0 SS=0023 ESP=001283C0 EBP=001284D0
: ECX=00F6F3D8 DS=0023 ESI=00F6F3E0 FS=003b
: EDX=00F6F2B8 ES=0023 EDI=00F6F3D8 GS=0000

Stack Trace : 0044EE29 00455B7D 004704EA 0046DAF7
: 00461C50 0049CA92 004AE364 0042A90C
: 0041C5A1 00419D7C 00424689 004D6CC2
: 73DD1EB6 73DD1B9B 73DD1B05 73DD2C9C
Modules :
1 : 00400000 002C2000 C:\Program Files\MetaTrader 4\terminal.exe
2 : 20000000 002C5000 C:\WINDOWS\system32\xpsp2res.dll
3 : 5AD70000 00038000 C:\WINDOWS\system32\uxtheme.dll
4 : 5FD00000 00009000 C:\WINDOWS\system32\MFC42LOC.DLL
5 : 629C0000 00009000 C:\WINDOWS\system32\LPK.DLL
6 : 71AA0000 00008000 C:\WINDOWS\system32\WS2HELP.dll
7 : 71AB0000 00017000 C:\WINDOWS\system32\WS2_32.dll
8 : 73DD0000 000FE000 C:\WINDOWS\system32\MFC42.DLL
9 : 74720000 0004B000 C:\WINDOWS\system32\MSCTF.dll
10 : 74D90000 0006B000 C:\WINDOWS\system32\USP10.dll
11 : 755C0000 0002E000 C:\WINDOWS\system32\msctfime.ime
12 : 76380000 00005000 C:\WINDOWS\system32\MSIMG32.dll
13 : 76390000 0001D000 C:\WINDOWS\system32\IMM32.DLL
14 : 763B0000 00049000 C:\WINDOWS\system32\comdlg32.dll
15 : 76B40000 0002D000 C:\WINDOWS\system32\WINMM.dll
16 : 77120000 0008C000 C:\WINDOWS\system32\OLEAUT32.dll
17 : 773D0000 00102000 C:\WINDOWS\WinSxS\X86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\COMCTL32.dll
18 : 774E0000 0013D000 C:\WINDOWS\system32\ole32.dll
19 : 77C10000 00058000 C:\WINDOWS\system32\msvcrt.dll
20 : 77D40000 00090000 C:\WINDOWS\system32\USER32.dll
21 : 77DD0000 0009B000 C:\WINDOWS\system32\ADVAPI32.dll
22 : 77E70000 00091000 C:\WINDOWS\system32\RPCRT4.dll
23 : 77F10000 00046000 C:\WINDOWS\system32\GDI32.dll
24 : 77F60000 00076000 C:\WINDOWS\system32\SHLWAPI.dll
25 : 7C800000 000F4000 C:\WINDOWS\system32\kernel32.dll
26 : 7C900000 000B0000 C:\WINDOWS\system32\ntdll.dll
27 : 7C9C0000 00814000 C:\WINDOWS\system32\SHELL32.dll

Call stack :
0044EA3A:03EF [0044EE29] ?FuncArraySort@CExpertInterior
00454000:1B7D [00455B7D] ?DoFunction@CExpertInterior
0046CF80:356A [004704EA] ?ExecuteStaticAsm@CExpertInterior
0046CF80:0B77 [0046DAF7] ?ExecuteStaticAsm@CExpertInterior
00461A46:020A [00461C50] ?RunExpertInt@CExpertInterior
0049C6CE:03C4 [0049CA92] ?Calculate@CIndCustom
004AE25B:0109 [004AE364] ?Calculate@CIndMain
0042A878:0094 [0042A90C] ?IndicatorCalculate@CChartWin
0041C56F:0032 [0041C5A1] ?IndicatorCalculate@CChart
00418D03:1079 [00419D7C] ?Load@CChart
00424580:0109 [00424689] ?OnInitialUpdate@CChartView
004D6CB3:000F [004D6CC2] ?OnInitialUpdate@CMetaTraderView
004CB2C6:02A6 [004CB56C] ?ReloadProfile@CMainFrame
004D4484:09CB [004D4E4F] ?InitInstance@CMetaTraderApp
7C816D06:0049 [7C816D4F] RegisterWaitForInputIdle [C:\WINDOWS\system32\kernel32.dll]

acethomasacethomas 2005.07.06 14:54 

sent already, thanks again

acethomasacethomas 2005.07.08 03:21 

thanks a lot

I have tried EUR/USD M5 H1 and GBP/USD M5 , and they crashed occationally on one of my computers

do u think it's the conflicts of dlls ? refering to the posted memory dump, is kernel32.dll conflicts with other dll ?