[False?] leak reports on MessageBox #60
Comments
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From bruen...@google.com on July 14, 2011 07:32:30 Issue 426 has been merged into this issue. |
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From bruen...@google.com on July 14, 2011 12:39:46 1st UNINIT is issue #492 |
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From bruen...@google.com on July 15, 2011 12:32:31 all uninits are gone after issue #96 and issue #484 leaving open for leaks: Error Error Error Error Error Summary: False leak reports on MessageBox |
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From timurrrr@google.com on July 21, 2011 05:35:04 I disagree, I still see a dozen of uninits and one UNADDDRs on this test as of r405 including these ones: ... Error [XP32 w/o symbols] ... Error Summary: False reports on MessageBox |
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From timurrrr@google.com on July 21, 2011 05:40:06 On W7, there are 5 leaks and one UNADDR [maybe that was a recent regression?] [W7 w/o symbols] |
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From bruen...@google.com on July 21, 2011 10:17:58 xp32 is not a primary target for me, can you check the usp10.dll uninits there and see if they require per-bit and if so update the issue #493 default suppressions I will look at WNDCLASSEXW.lpszClassName Owner: timurrrr@google.com |
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From bruen...@google.com on July 21, 2011 11:05:04 WNDCLASSEXW.lpszClassName is split as issue #505 |
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From timurrrr@google.com on July 22, 2011 02:16:09 OK, splitting the USP10 uninits into issue #493 Summary: [False?] leak reports on MessageBox |
From timurrrr@google.com on September 29, 2010 11:39:12
As of r57 , the following code:
===test.c===
#include <windows.h>
#pragma comment(lib, "user32.lib")
int main(void) {
MessageBox(NULL, "Test", "Caption", MB_OK);
return 0;
}
(compiled with "cl /Zi /MTd")
gives 63 uninits + 1 unaddr reports like:
Error
#1: UNINITIALIZED READ: reading 0x0012f9e4-0x0012f9e5 1 byte(s)@0:00:02.141 in thread 3664
0x74dcabc3 <USP10.dll+0x3abc3> USP10.dll!UspFreeMem
??:0
0x74da49cd <USP10.dll+0x149cd> USP10.dll!ScriptIsComplex
??:0
0x629c32bf <LPK.dll+0x32bf> LPK.dll!LpkGetTextExtentExPoint
??:0
0x77f175f9 <GDI32.dll+0x75f9> GDI32.dll!CreateCompatibleBitmap
??:0
0x77f16b25 <GDI32.dll+0x6b25> GDI32.dll!GetTextExtentPointW
??:0
0x7e43a462 <USER32.dll+0x2a462> USER32.dll!SoftModalMessageBox
??:0
0x7e43a2bc <USER32.dll+0x2a2bc> USER32.dll!MessageBoxIndirectA
??:0
0x7e4663fd <USER32.dll+0x563fd> USER32.dll!MessageBoxTimeoutW
??:0
0x7e4664a2 <USER32.dll+0x564a2> USER32.dll!MessageBoxTimeoutA
??:0
0x7e450877 <USER32.dll+0x40877> USER32.dll!MessageBoxExA
??:0
0x7e45082f <USER32.dll+0x4082f> USER32.dll!MessageBoxA
??:0
0x00401027 <test.exe+0x1027> test.exe!main
z:\dr-sandbox\issues\msgbox\test.c:6
...
Error
#9: UNINITIALIZED READ: reading register cx@0:00:02.798 in thread 3664
0x7c80aa24 <KERNEL32.dll+0xaa24> KERNEL32.dll!GetLocalTime
??:0
0x7c80aa8c <KERNEL32.dll+0xaa8c> KERNEL32.dll!lstrcmpW
??:0
0x74da74db <USP10.dll+0x174db> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da75e2 <USP10.dll+0x175e2> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da82ea <USP10.dll+0x182ea> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da506a <USP10.dll+0x1506a> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da581a <USP10.dll+0x1581a> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da5a8e <USP10.dll+0x15a8e> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da5ea3 <USP10.dll+0x15ea3> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da5f8b <USP10.dll+0x15f8b> USP10.dll!ScriptApplyDigitSubstitution
??:0
0x74da4186 <USP10.dll+0x14186> USP10.dll!ScriptStringAnalyse
??:0
0x629c48f8 <LPK.dll+0x48f8> LPK.dll!LpkTabbedTextOut
??:0
0x629c4651 <LPK.dll+0x4651> LPK.dll!LpkTabbedTextOut
??:0
0x629c1269 <LPK.dll+0x1269> LPK.dll!LpkDrawTextEx
??:0
0x7e44e667 <USER32.dll+0x3e667> USER32.dll!DeregisterShellHookWindow
??:0
0x7e42bae3 <USER32.dll+0x1bae3> USER32.dll!DrawTextExW
??:0
0x7e42b5a1 <USER32.dll+0x1b5a1> USER32.dll!DrawTextExW
??:0
0x7e42b433 <USER32.dll+0x1b433> USER32.dll!DrawTextExW
??:0
0x7e43a566 <USER32.dll+0x2a566> USER32.dll!SoftModalMessageBox
??:0
0x7e43a2bc <USER32.dll+0x2a2bc> USER32.dll!MessageBoxIndirectA
??:0
...
Original issue: http://code.google.com/p/drmemory/issues/detail?id=60
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