c++ windows memory-leaks heap windbg

c++ - ¿Cuál es el significado de "interno" en la salida "! Heap-h" en windbg?



windows memory-leaks (1)

TL; DR: los bloques Heap marcados como "internos" tienen una bandera especial en _HEAP_ENTRY.Flags

[edit] revisó mi respuesta anterior con una respuesta adecuada.

Aquí está mi intento de adivinar su pregunta.

De acuerdo con la ayuda windbg, el código de comando "! Heap" se encuentra en exts.dll (es decir, / winxp / exts.dll).

Ponga esta DLL en IDA y descargue símbolos para ella. Solo hay una aparición de "Internal" en la DLL, dentro de la función DumpHeapEntry ():

.text:0192463D movzx eax, byte_1963152 .text:01924644 test eax, eax .text:01924646 jz short loc_1924656 .text:01924648 push offset aInternal ; " Internal " .text:0192464D call _ExtensionApis.lpOutputRoutine ; some sort of printf routine

La salida de "Internal" está, por lo tanto, condicionada por el valor de byte_1963152: si byte_1963152 no es 0, se imprime "Internal". Solo ocurre una vez que ocurre el valor de escritura con cualquier cosa que no sea 0 (en ReadHeapEntry () que se llama al inicio de DumpHeapEntry ()):

.text:0191F025 movzx eax, [ebp+var_B] .text:0191F029 and eax, 8 .text:0191F02C jz short loc_191F035 .text:0191F02E mov byte_1963152, 1

Esto se traduce a:

if((UINT)var_B & 8) byte_1963152 = 1;

var_B se establece aquí:

text:0191EFF7 mov eax, [ebp+var_18] .text:0191EFFA mov edx, [ebp+var_14] .text:0191EFFD mov cl, 10h ; shift right by 0x10 bits .text:0191EFFF call __aullshr .text:0191F004 mov [ebp+var_B], al

__aullshr significa "Aritmética Unsigned Long Long Shift Right". En el código anterior eax es la parte baja de 32 bits de un largo largo sin signo de 64 bits, mientras que edx es la parte más alta de 32 bits. Observe que var_B es una cantidad de 8 bits (se usa el registro ''al'').

Por lo tanto:

// where var_14_18 is a combination (64-bit) of var_14 and var_18 var_B = (char)(var_14_18 >> 0x10 );

var_14 y var_18 se establecen aquí:

.text:0191EF01 push 0 .text:0191EF03 push offset aAgregatecode ; "AgregateCode" .text:0191EF08 push 0 .text:0191EF0A push 0 .text:0191EF0C call _GetShortField@16 ; GetShortField(x,x,x,x) .text:0191EF11 mov [ebp+var_18], eax ; high part .text:0191EF14 mov [ebp+var_14], edx ; low part ; cut .text:0191EF28 mov ecx, [ebp+var_18] .text:0191EF2B and ecx, _EncodeFlagMask ; from HEAP.EncodeFlagMask .text:0191EF31 jz short loc_191EF75 .text:0191EF33 mov edx, [ebp+var_18] .text:0191EF36 xor edx, _CrtHeapCode ; from HEAP.Encoding.Code1 .text:0191EF3C mov eax, [ebp+var_14] .text:0191EF3F xor eax, dword_1963194 ; from HEAP.Encoding.Code2 .text:0191EF45 mov [ebp+var_18], edx .text:0191EF48 mov [ebp+var_14], eax

Entonces, windbg usa la función GetShortField () en "AgregateCode" y establece las dos variables antes mencionadas (que también es un único valor largo sin signo). Tenga en cuenta que también utiliza HEAP.Encoding.Code1 y HEAP.Encoding.Code2 a XOR tanto del valor (HEAP es el montón actual del cual la entrada del montón es una parte).

"AgregateCode" es un campo de ambas estructuras HEAP_ENTRY y HEAP_FREE_ENTRY (de Win 8.1 x86):

0:000> dt _heap_entry -r2 ntdll!_HEAP_ENTRY +0x000 Size : Uint2B +0x002 Flags : UChar +0x003 SmallTagIndex : UChar +0x000 SubSegmentCode : Uint4B +0x004 PreviousSize : Uint2B +0x006 SegmentOffset : UChar +0x006 LFHFlags : UChar +0x007 UnusedBytes : UChar +0x000 FunctionIndex : Uint2B +0x002 ContextValue : Uint2B +0x000 InterceptorValue : Uint4B +0x004 UnusedBytesLength : Uint2B +0x006 EntryOffset : UChar +0x007 ExtendedBlockSignature : UChar +0x000 Code1 : Uint4B +0x004 Code2 : Uint2B +0x006 Code3 : UChar +0x007 Code4 : UChar +0x004 Code234 : Uint4B +0x000 AgregateCode : Uint8B

Esto traducido a C, da:

typedef struct _HEAP_ENTRY // 20 elements, 0x8 bytes (sizeof) { union // 6 elements, 0x8 bytes (sizeof) { struct // 3 elements, 0x8 bytes (sizeof) { /*0x000*/ UINT16 Size; /*0x002*/ UINT8 Flags; /*0x003*/ UINT8 SmallTagIndex; /*0x004*/ UINT8 _PADDING0_[0x4]; }; struct // 4 elements, 0x8 bytes (sizeof) { /*0x000*/ ULONG32 SubSegmentCode; /*0x004*/ UINT16 PreviousSize; union // 2 elements, 0x1 bytes (sizeof) { /*0x006*/ UINT8 SegmentOffset; /*0x006*/ UINT8 LFHFlags; }; /*0x007*/ UINT8 UnusedBytes; }; struct // 2 elements, 0x8 bytes (sizeof) { /*0x000*/ UINT16 FunctionIndex; /*0x002*/ UINT16 ContextValue; /*0x004*/ UINT8 _PADDING1_[0x4]; }; struct // 4 elements, 0x8 bytes (sizeof) { /*0x000*/ ULONG32 InterceptorValue; /*0x004*/ UINT16 UnusedBytesLength; /*0x006*/ UINT8 EntryOffset; /*0x007*/ UINT8 ExtendedBlockSignature; }; struct // 2 elements, 0x8 bytes (sizeof) { /*0x000*/ ULONG32 Code1; union // 2 elements, 0x4 bytes (sizeof) { struct // 3 elements, 0x4 bytes (sizeof) { /*0x004*/ UINT16 Code2; /*0x006*/ UINT8 Code3; /*0x007*/ UINT8 Code4; }; /*0x004*/ ULONG32 Code234; }; }; /*0x000*/ UINT64 AgregateCode; }; }HEAP_ENTRY, *PHEAP_ENTRY;

Por lo tanto, tenemos el siguiente pseudocódigo (menos algunos otros controles):

high_part, low_part = GetShortField(0,0,"AgregateCode", 0); high_part ^= HEAP.Encoding.Code1; low_part ^= HEAP.Encoding.Code2; AgregateCode = Make64BitFromTwo32Bit(high_part, low_part); char var_B = (char)(AgregateCode >> 0x10); if(var_B & 8) printf("Internal");

Dado que "Códigocompleto" es ... bueno, un agregado de Código1 al Código 4:

struct // 2 elements, 0x8 bytes (sizeof) { /*0x000*/ ULONG32 Code1; union // 2 elements, 0x4 bytes (sizeof) { struct // 3 elements, 0x4 bytes (sizeof) { /*0x004*/ UINT16 Code2; /*0x006*/ UINT8 Code3; /*0x007*/ UINT8 Code4; }; /*0x004*/ ULONG32 Code234; }; }; /*0x000*/ UINT64 AgregateCode;

Si cambias 0x10 y AND 8 al campo de Código Completo terminas finalmente probando el 11º bit (empieza a contar a 0) de Code1.

Como la estructura es una gran unión, finalmente terminas probando: _HEAP_ENTRY.Flags

Sucede que una bandera de montón ya tiene el valor 8, su nombre es: HEAP_ENTRY_VIRTUAL_ALLOC

http://doxygen.reactos.org/da/ddb/heap_8h_source.html#l00044

https://os-design.googlecode.com/svn/trunk/ntos/inc/heap.h

Parece que este indicador se usa para administrar grandes asignaciones, aunque esos bloques son utilizados internamente por el sistema y no están disponibles directamente para el usuario final.

Normalmente, dichos bloques internos tienen el elemento Flags establecido en 9: HEAP_ENTRY_VIRTUAL_ALLOC | HEAP_ENTRY_BUSY

[editar] Ejemplo:

Digamos que tengo un montón en 0x005b0000:

0:004> !heap -h Index Address Name Debugging options enabled 1: 005b0000

Este montón (_HEAP) tiene un HEAP_ENTRY marcado como "Interno" en 0x005b8d00:

0:004> !heap -h 005b0000 Index Address Name Debugging options enabled 1: 005b0000 Segment at 005b0000 to 006b0000 (0009d000 bytes committed) Flags: 00000002 ForceFlags: 00000000 Granularity: 8 bytes Segment Reserve: 00100000 Segment Commit: 00002000 DeCommit Block Thres: 00000800 DeCommit Total Thres: 00002000 Total Free Size: 00001ae8 Max. Allocation Size: 7ffdefff Lock Variable at: 005b0138 Next TagIndex: 0000 Maximum TagIndex: 0000 Tag Entries: 00000000 PsuedoTag Entries: 00000000 Virtual Alloc List: 005b00a0 Uncommitted ranges: 005b0090 FreeList[ 00 ] at 005b00c4: 0063fbc0 . 00633060 (7 blocks) Heap entries for Segment00 in Heap 005b0000 005b0000: 00000 . 00588 [101] - busy (587) //[cut] 005b8d00: 03d20 . 378b0 [101] - busy (378a8) Internal

Una vista detallada de la estructura HEAP (nótese la estructura "Codificación" (_HEAP_ENTRY) en desplazamiento 0x50 que ayuda a decodificar la entrada montón codificada con un XOR):

0:004> dt _heap 005b0000 -r1 ntdll!_HEAP +0x000 Entry : _HEAP_ENTRY +0x000 Size : 0xbe38 +0x002 Flags : 0xf5 '''' +0x003 SmallTagIndex : 0xff '''' +0x000 SubSegmentCode : 0xfff5be38 +0x004 PreviousSize : 0xcf53 +0x006 SegmentOffset : 0 '''' +0x006 LFHFlags : 0 '''' +0x007 UnusedBytes : 0x1 '''' +0x000 FunctionIndex : 0xbe38 +0x002 ContextValue : 0xfff5 +0x000 InterceptorValue : 0xfff5be38 +0x004 UnusedBytesLength : 0xcf53 +0x006 EntryOffset : 0 '''' +0x007 ExtendedBlockSignature : 0x1 '''' +0x000 Code1 : 0xfff5be38 +0x004 Code2 : 0xcf53 +0x006 Code3 : 0 '''' +0x007 Code4 : 0x1 '''' +0x000 AgregateCode : 0x100cf53`fff5be38 +0x008 SegmentSignature : 0xffeeffee +0x00c SegmentFlags : 0 +0x010 SegmentListEntry : _LIST_ENTRY [ 0x5b00a8 - 0x5b00a8 ] +0x000 Flink : 0x005b00a8 _LIST_ENTRY [ 0x5b0010 - 0x5b0010 ] +0x004 Blink : 0x005b00a8 _LIST_ENTRY [ 0x5b0010 - 0x5b0010 ] +0x018 Heap : 0x005b0000 _HEAP +0x000 Entry : _HEAP_ENTRY +0x008 SegmentSignature : 0xffeeffee +0x00c SegmentFlags : 0 +0x010 SegmentListEntry : _LIST_ENTRY [ 0x5b00a8 - 0x5b00a8 ] +0x018 Heap : 0x005b0000 _HEAP +0x01c BaseAddress : 0x005b0000 +0x020 NumberOfPages : 0x100 +0x024 FirstEntry : 0x005b0588 _HEAP_ENTRY +0x028 LastValidEntry : 0x006b0000 _HEAP_ENTRY +0x02c NumberOfUnCommittedPages : 0x63 +0x030 NumberOfUnCommittedRanges : 1 +0x034 SegmentAllocatorBackTraceIndex : 0 +0x036 Reserved : 0 +0x038 UCRSegmentList : _LIST_ENTRY [ 0x64cff0 - 0x64cff0 ] +0x040 Flags : 2 +0x044 ForceFlags : 0 +0x048 CompatibilityFlags : 0 +0x04c EncodeFlagMask : 0x100000 +0x050 Encoding : _HEAP_ENTRY +0x058 PointerKey : 0x75c3a7b +0x05c Interceptor : 0 +0x060 VirtualMemoryThreshold : 0xfe00 +0x064 Signature : 0xeeffeeff +0x068 SegmentReserve : 0x100000 +0x06c SegmentCommit : 0x2000 +0x070 DeCommitFreeBlockThreshold : 0x800 +0x074 DeCommitTotalFreeThreshold : 0x2000 +0x078 TotalFreeSize : 0x1ae8 +0x07c MaximumAllocationSize : 0x7ffdefff +0x080 ProcessHeapsListIndex : 1 +0x082 HeaderValidateLength : 0x138 +0x084 HeaderValidateCopy : (null) +0x088 NextAvailableTagIndex : 0 +0x08a MaximumTagIndex : 0 +0x08c TagEntries : (null) +0x090 UCRList : _LIST_ENTRY [ 0x64cfe8 - 0x64cfe8 ] +0x098 AlignRound : 0xf +0x09c AlignMask : 0xfffffff8 +0x0a0 VirtualAllocdBlocks : _LIST_ENTRY [ 0x5b00a0 - 0x5b00a0 ] +0x0a8 SegmentList : _LIST_ENTRY [ 0x5b0010 - 0x5b0010 ] +0x0b0 AllocatorBackTraceIndex : 0 +0x0b4 NonDedicatedListLength : 0 +0x0b8 BlocksIndex : 0x005b0150 +0x0bc UCRIndex : 0x005b0590 +0x0c0 PseudoTagEntries : (null) +0x0c4 FreeLists : _LIST_ENTRY [ 0x633060 - 0x63fbc0 ] +0x0cc LockVariable : 0x005b0138 _HEAP_LOCK +0x0d0 CommitRoutine : 0x075c3a7b long +75c3a7b +0x0d4 FrontEndHeap : 0x005b8d08 +0x0d8 FrontHeapLockCount : 0 +0x0da FrontEndHeapType : 0x2 '''' +0x0dc Counters : _HEAP_COUNTERS +0x130 TuningParameters : _HEAP_TUNING_PARAMETERS +0x01c BaseAddress : 0x005b0000 +0x020 NumberOfPages : 0x100 +0x024 FirstEntry : 0x005b0588 _HEAP_ENTRY +0x000 Size : 0xbec1 +0x002 Flags : 0xf5 '''' +0x003 SmallTagIndex : 0x6 '''' +0x000 SubSegmentCode : 0x06f5bec1 +0x004 PreviousSize : 0xcfe2 +0x006 SegmentOffset : 0 '''' +0x006 LFHFlags : 0 '''' +0x007 UnusedBytes : 0x1 '''' +0x000 FunctionIndex : 0xbec1 +0x002 ContextValue : 0x6f5 +0x000 InterceptorValue : 0x6f5bec1 +0x004 UnusedBytesLength : 0xcfe2 +0x006 EntryOffset : 0 '''' +0x007 ExtendedBlockSignature : 0x1 '''' +0x000 Code1 : 0x6f5bec1 +0x004 Code2 : 0xcfe2 +0x006 Code3 : 0 '''' +0x007 Code4 : 0x1 '''' +0x000 AgregateCode : 0x100cfe2`06f5bec1 +0x028 LastValidEntry : 0x006b0000 _HEAP_ENTRY +0x000 Size : 0xeff8 +0x002 Flags : 0xe7 '''' +0x003 SmallTagIndex : 0xff '''' +0x000 SubSegmentCode : 0xffe7eff8 +0x004 PreviousSize : 0xd3df +0x006 SegmentOffset : 0xc7 '''' +0x006 LFHFlags : 0xc7 '''' +0x007 UnusedBytes : 0xff '''' +0x000 FunctionIndex : 0xeff8 +0x002 ContextValue : 0xffe7 +0x000 InterceptorValue : 0xffe7eff8 +0x004 UnusedBytesLength : 0xd3df +0x006 EntryOffset : 0xc7 '''' +0x007 ExtendedBlockSignature : 0xff '''' +0x000 Code1 : 0xffe7eff8 +0x004 Code2 : 0xd3df +0x006 Code3 : 0xc7 '''' +0x007 Code4 : 0xff '''' +0x000 AgregateCode : 0xffc7d3df`ffe7eff8 +0x02c NumberOfUnCommittedPages : 0x63 +0x030 NumberOfUnCommittedRanges : 1 +0x034 SegmentAllocatorBackTraceIndex : 0 +0x036 Reserved : 0 +0x038 UCRSegmentList : _LIST_ENTRY [ 0x64cff0 - 0x64cff0 ] +0x000 Flink : 0x0064cff0 _LIST_ENTRY [ 0x5b0038 - 0x5b0038 ] +0x004 Blink : 0x0064cff0 _LIST_ENTRY [ 0x5b0038 - 0x5b0038 ] +0x040 Flags : 2 +0x044 ForceFlags : 0 +0x048 CompatibilityFlags : 0 +0x04c EncodeFlagMask : 0x100000 +0x050 Encoding : _HEAP_ENTRY +0x000 Size : 0xbe89 +0x002 Flags : 0xf4 '''' +0x003 SmallTagIndex : 0x4f ''O'' +0x000 SubSegmentCode : 0x4ff4be89 +0x004 PreviousSize : 0xcf53 +0x006 SegmentOffset : 0 '''' +0x006 LFHFlags : 0 '''' +0x007 UnusedBytes : 0 '''' +0x000 FunctionIndex : 0xbe89 +0x002 ContextValue : 0x4ff4 +0x000 InterceptorValue : 0x4ff4be89 +0x004 UnusedBytesLength : 0xcf53 +0x006 EntryOffset : 0 '''' +0x007 ExtendedBlockSignature : 0 '''' +0x000 Code1 : 0x4ff4be89 +0x004 Code2 : 0xcf53 +0x006 Code3 : 0 '''' +0x007 Code4 : 0 '''' +0x000 AgregateCode : 0xcf53`4ff4be89 +0x058 PointerKey : 0x75c3a7b +0x05c Interceptor : 0 +0x060 VirtualMemoryThreshold : 0xfe00 +0x064 Signature : 0xeeffeeff +0x068 SegmentReserve : 0x100000 +0x06c SegmentCommit : 0x2000 +0x070 DeCommitFreeBlockThreshold : 0x800 +0x074 DeCommitTotalFreeThreshold : 0x2000 +0x078 TotalFreeSize : 0x1ae8 +0x07c MaximumAllocationSize : 0x7ffdefff +0x080 ProcessHeapsListIndex : 1 +0x082 HeaderValidateLength : 0x138 +0x084 HeaderValidateCopy : (null) +0x088 NextAvailableTagIndex : 0 +0x08a MaximumTagIndex : 0 +0x08c TagEntries : (null) +0x090 UCRList : _LIST_ENTRY [ 0x64cfe8 - 0x64cfe8 ] +0x000 Flink : 0x0064cfe8 _LIST_ENTRY [ 0x5b0090 - 0x5b0090 ] +0x004 Blink : 0x0064cfe8 _LIST_ENTRY [ 0x5b0090 - 0x5b0090 ] +0x098 AlignRound : 0xf +0x09c AlignMask : 0xfffffff8 +0x0a0 VirtualAllocdBlocks : _LIST_ENTRY [ 0x5b00a0 - 0x5b00a0 ] +0x000 Flink : 0x005b00a0 _LIST_ENTRY [ 0x5b00a0 - 0x5b00a0 ] +0x004 Blink : 0x005b00a0 _LIST_ENTRY [ 0x5b00a0 - 0x5b00a0 ] +0x0a8 SegmentList : _LIST_ENTRY [ 0x5b0010 - 0x5b0010 ] +0x000 Flink : 0x005b0010 _LIST_ENTRY [ 0x5b00a8 - 0x5b00a8 ] +0x004 Blink : 0x005b0010 _LIST_ENTRY [ 0x5b00a8 - 0x5b00a8 ] +0x0b0 AllocatorBackTraceIndex : 0 +0x0b4 NonDedicatedListLength : 0 +0x0b8 BlocksIndex : 0x005b0150 +0x0bc UCRIndex : 0x005b0590 +0x0c0 PseudoTagEntries : (null) +0x0c4 FreeLists : _LIST_ENTRY [ 0x633060 - 0x63fbc0 ] +0x000 Flink : 0x00633060 _LIST_ENTRY [ 0x632fc8 - 0x5b00c4 ] +0x004 Blink : 0x0063fbc0 _LIST_ENTRY [ 0x5b00c4 - 0x633390 ] +0x0cc LockVariable : 0x005b0138 _HEAP_LOCK +0x000 Lock : <unnamed-tag> +0x0d0 CommitRoutine : 0x075c3a7b long +75c3a7b +0x0d4 FrontEndHeap : 0x005b8d08 +0x0d8 FrontHeapLockCount : 0 +0x0da FrontEndHeapType : 0x2 '''' +0x0dc Counters : _HEAP_COUNTERS +0x000 TotalMemoryReserved : 0x100000 +0x004 TotalMemoryCommitted : 0x9d000 +0x008 TotalMemoryLargeUCR : 0 +0x00c TotalSizeInVirtualBlocks : 0 +0x010 TotalSegments : 1 +0x014 TotalUCRs : 1 +0x018 CommittOps : 0x19 +0x01c DeCommitOps : 0 +0x020 LockAcquires : 0xd37 +0x024 LockCollisions : 0 +0x028 CommitRate : 0x24 +0x02c DecommittRate : 0xb +0x030 CommitFailures : 0 +0x034 InBlockCommitFailures : 0 +0x038 CompactHeapCalls : 0 +0x03c CompactedUCRs : 0 +0x040 AllocAndFreeOps : 0 +0x044 InBlockDeccommits : 0 +0x048 InBlockDeccomitSize : 0 +0x04c HighWatermarkSize : 0x9cde0 +0x050 LastPolledSize : 0x8f9c8 +0x130 TuningParameters : _HEAP_TUNING_PARAMETERS +0x000 CommittThresholdShift : 4 +0x004 MaxPreCommittThreshold : 0xfe000

Ahora una vista detallada de la _HEAP_ENTRY (marcado como interno). Esta es una estructura codificada, que puede ser decodificado por XORing con miembro de _HEAP.Encoding:

0:004> dt _heap_entry 005b8d00 ntdll!_HEAP_ENTRY +0x000 Size : 0xd19f +0x002 Flags : 0xfd '''' +0x003 SmallTagIndex : 0x3f ''?'' +0x000 SubSegmentCode : 0x3ffdd19f +0x004 PreviousSize : 0xc8f7 +0x006 SegmentOffset : 0 '''' +0x006 LFHFlags : 0 '''' +0x007 UnusedBytes : 0x8 '''' +0x000 FunctionIndex : 0xd19f +0x002 ContextValue : 0x3ffd +0x000 InterceptorValue : 0x3ffdd19f +0x004 UnusedBytesLength : 0xc8f7 +0x006 EntryOffset : 0 '''' +0x007 ExtendedBlockSignature : 0x8 '''' +0x000 Code1 : 0x3ffdd19f +0x004 Code2 : 0xc8f7 +0x006 Code3 : 0 '''' +0x007 Code4 : 0x8 '''' +0x000 AgregateCode : 0x800c8f7`3ffdd19f

Ahora el código comentado:

1) Fetch forma agregada HEAP_ENTRY
2) Decode HEAP_ENTRY (XOR) con HEAP.Encoding miembro
resultado 3) Shift para obtener _HEAP_ENTRY.Flags
4) y el resultado con HEAP_ENTRY_VIRTUAL_ALLOC (8) para ver si es un bloque interno

CPU Disasm Address Command Comments 730AEF01 PUSH 0 ; /Arg4 = 0 730AEF03 PUSH ??_C@_0N@BCMFEPJJ@AgregateCode?$AA@ ; |Arg3 = ASCII "AgregateCode" 730AEF08 PUSH 0 ; |Arg2 = 0 730AEF0A PUSH 0 ; |Arg1 = 0 730AEF0C CALL GetShortField ; /exts.GetShortField 730AEF11 MOV DWORD PTR SS:[LOCAL.6],EAX ; low part = 0x3FFDD19F (_HEAP_ENTRY.Code1) 730AEF14 MOV DWORD PTR SS:[LOCAL.5],EDX ; high part = 0x0800C8F7 730AEF17 MOV EDX,DWORD PTR SS:[LOCAL.6] 730AEF1A MOV DWORD PTR DS:[730F3158],EDX 730AEF20 MOV EAX,DWORD PTR SS:[LOCAL.5] 730AEF23 MOV DWORD PTR DS:[730F315C],EAX 730AEF28 MOV ECX,DWORD PTR SS:[LOCAL.6] ; 0x3FFDD19F 730AEF2B AND ECX,DWORD PTR DS:[EncodeFlagMask] ; ecx = 0x3FFDD19F ^ 0x00100000 = 0x00100000 730AEF31 JE SHORT 730AEF75 730AEF33 MOV EDX,DWORD PTR SS:[LOCAL.6] ; edx = 0x3FFDD19F 730AEF36 XOR EDX,DWORD PTR DS:[CrtHeapCode] ; edx = 0x3FFDD19F ^ 0x4FF4BE89 = 0x70096F16 730AEF3C MOV EAX,DWORD PTR SS:[LOCAL.5] ; eax = 0x0800C8F7 730AEF3F XOR EAX,DWORD PTR DS:[730F3194] ; eax = 0x0800C8F7 ^ 0xCF53 = 0x080007A4 730AEF45 MOV DWORD PTR SS:[LOCAL.6],EDX ; edx = 0x70096F16 730AEF48 MOV DWORD PTR SS:[LOCAL.5],EAX ; eax = 0x080007A4 ;[...] 730AEFEE MOVZX EAX,WORD PTR SS:[LOCAL.6] 730AEFF2 MOV DWORD PTR DS:[CrtHeapEntry],EAX ; entry = 0x6f16 730AEFF7 MOV EAX,DWORD PTR SS:[LOCAL.6] ; low part = 0x70096F16 730AEFFA MOV EDX,DWORD PTR SS:[LOCAL.5] ; high part = 0x080007A4 730AEFFD MOV CL,10 730AEFFF CALL _aullshr 730AF004 MOV BYTE PTR SS:[LOCAL.3+1],AL ; 0x00000800:07A47009 -> al = 9 730AF007 MOVZX ECX,BYTE PTR SS:[LOCAL.3+1] 730AF00B AND ECX,FFFFFFE6 730AF00E OR ECX,DWORD PTR DS:[730F3148] 730AF014 MOV DWORD PTR DS:[730F3148],ECX 730AF01A MOV EDX,DWORD PTR DS:[730F3148] 730AF020 AND EDX,00000001 730AF023 JE SHORT 730AF035 730AF025 MOVZX EAX,BYTE PTR SS:[LOCAL.3+1] ; eax = 9 730AF029 AND EAX,00000008 ; 9 & 8 = 1 730AF02C JE SHORT 730AF035 730AF02E MOV BYTE PTR DS:[730F3152],1 ; set "Internal" flag

¡Espero eso ayude!

Estoy siguiendo esta publicación de stackoverflow ¿Qué representan las diferentes columnas en el comando windbg "! Heap -flt -s xxxx"

Intento entender la información impresa para uno de los montones que consume mucha memoria.

Puedo entender la mayoría de las columnas pero en mi windbg, veo una columna adicional. La mayoría de mis entradas están marcadas como Internas . Me pregunto qué significa eso. ¡He hecho !gflags +ust . Entonces, puedo ver la pila de llamadas para hacer la asignación de memoria. Puedo hacerlo en la mayoría de las entradas, excepto las marcadas como Internas .

¿Qué significa Internal ? ¿Es algo relacionado con la implementación de LFH? Si esta es la implementación interna de LFH, ¿cómo y cuándo regresarán estas entradas de Heap interno a la lista libre? Está reteniendo mi memoria sin ningún motivo ahora.

Aquí está la salida de !heap -h 0000000002330000 para su referencia.

Index Address Name Debugging options enabled 8: 02330000 Segment at 0000000002330000 to 0000000002340000 (00010000 bytes committed) Segment at 00000000032b0000 to 00000000033b0000 (00100000 bytes committed) Segment at 00000000065a0000 to 00000000067a0000 (00200000 bytes committed) Segment at 00000000067a0000 to 0000000006ba0000 (00400000 bytes committed) Segment at 0000000006d80000 to 0000000007580000 (006f2000 bytes committed) Flags: 08001002 ForceFlags: 00000000 Granularity: 16 bytes Segment Reserve: 01000000 Segment Commit: 00002000 DeCommit Block Thres: 00000400 DeCommit Total Thres: 00001000 Total Free Size: 0000274d Max. Allocation Size: 000007fffffdefff Lock Variable at: 00000000023301f8 Next TagIndex: 0000 Maximum TagIndex: 0000 Tag Entries: 00000000 PsuedoTag Entries: 00000000 Virtual Alloc List: 02330118 Uncommitted ranges: 023300f8 FreeList[ 00 ] at 0000000002330158: 0000000007454600 . 00000000032e3de0 (24 blocks) Heap entries for Segment00 in Heap 0000000002330000 0000000002330000: 00000 . 00a70 [101] - busy (a6f) 0000000002330a70: 00a70 . 00860 [101] - busy (85f) 00000000023312d0: 00860 . 038b0 [101] - busy (38af) 0000000002334b80: 038b0 . 00330 [100] 0000000002334eb0: 00330 . 00b60 [101] - busy (b34) 0000000002335a10: 00b60 . 00160 [101] - busy (134) 0000000002335b70: 00160 . 00090 [101] - busy (5c) 0000000002335c00: 00090 . 00090 [101] - busy (5c) 0000000002335c90: 00090 . 00040 [100] 0000000002335cd0: 00040 . 00090 [101] - busy (5c) 0000000002335d60: 00090 . 00020 [100] 0000000002335d80: 00020 . 00130 [101] - busy (104) 0000000002335eb0: 00130 . 00080 [101] - busy (53) 0000000002335f30: 00080 . 00090 [101] - busy (65) 0000000002335fc0: 00090 . 01060 [101] - busy (1034) 0000000002337020: 01060 . 01020 [101] - busy (ff0) Internal 0000000002338040: 01020 . 00420 [101] - busy (3f0) Internal 0000000002338460: 00420 . 00090 [101] - busy (64) 00000000023384f0: 00090 . 00260 [101] - busy (234) 0000000002338750: 00260 . 00090 [101] - busy (5c) 00000000023387e0: 00090 . 00080 [101] - busy (54) 0000000002338860: 00080 . 00080 [101] - busy (4c) 00000000023388e0: 00080 . 00030 [100] 0000000002338910: 00030 . 00090 [101] - busy (5c) 00000000023389a0: 00090 . 00090 [101] - busy (64) 0000000002338a30: 00090 . 00260 [101] - busy (234) 0000000002338c90: 00260 . 00060 [101] - busy (35) 0000000002338cf0: 00060 . 00160 [101] - busy (134) 0000000002338e50: 00160 . 00260 [101] - busy (234) 00000000023390b0: 00260 . 00160 [101] - busy (134) 0000000002339210: 00160 . 000c0 [101] - busy (94) 00000000023392d0: 000c0 . 00080 [101] - busy (4c) 0000000002339350: 00080 . 000c0 [101] - busy (84) 0000000002339410: 000c0 . 000c0 [101] - busy (84) 00000000023394d0: 000c0 . 000c0 [101] - busy (94) 0000000002339590: 000c0 . 000c0 [101] - busy (94) 0000000002339650: 000c0 . 000a0 [101] - busy (6c) 00000000023396f0: 000a0 . 000c0 [101] - busy (94) 00000000023397b0: 000c0 . 000a0 [101] - busy (6c) 0000000002339850: 000a0 . 000a0 [101] - busy (6c) 00000000023398f0: 000a0 . 02020 [101] - busy (1ff0) Internal 000000000233b910: 02020 . 000a0 [101] - busy (74) 000000000233b9b0: 000a0 . 00060 [101] - busy (35) 000000000233ba10: 00060 . 02020 [101] - busy (1ff0) Internal 000000000233da30: 02020 . 000a0 [101] - busy (6c) 000000000233dad0: 000a0 . 000c0 [101] - busy (94) 000000000233db90: 000c0 . 000a0 [101] - busy (6c) 000000000233dc30: 000a0 . 00060 [100] 000000000233dc90: 00060 . 001c0 [101] - busy (194) 000000000233de50: 001c0 . 00260 [101] - busy (234) 000000000233e0b0: 00260 . 000b0 [101] - busy (80) 000000000233e160: 000b0 . 00020 [100] 000000000233e180: 00020 . 000c0 [101] - busy (94) 000000000233e240: 000c0 . 000a0 [101] - busy (6c) 000000000233e2e0: 000a0 . 000a0 [101] - busy (74) 000000000233e380: 000a0 . 001c0 [101] - busy (194) 000000000233e540: 001c0 . 00020 [100] 000000000233e560: 00020 . 000c0 [101] - busy (84) 000000000233e620: 000c0 . 000c0 [101] - busy (84) 000000000233e6e0: 000c0 . 000c0 [101] - busy (94) 000000000233e7a0: 000c0 . 000c0 [101] - busy (94) 000000000233e860: 000c0 . 00260 [101] - busy (234) 000000000233eac0: 00260 . 000b0 [101] - busy (82) 000000000233eb70: 000b0 . 00350 [100] 000000000233eec0: 00350 . 00330 [101] - busy (2fc) 000000000233f1f0: 00330 . 00440 [101] - busy (40c) 000000000233f630: 00440 . 00420 [101] - busy (3f0) Internal 000000000233fa50: 00420 . 00460 [100] 000000000233feb0: 00460 . 000b0 [101] - busy (80) 000000000233ff60: 000b0 . 00060 [100] 000000000233ffc0: 00060 . 00040 [111] - busy (3d) 0000000002340000: 00000000 - uncommitted bytes. Heap entries for Segment01 in Heap 0000000002330000 00000000032b0000: 00000 . 00070 [101] - busy (6f) 00000000032b0070: 00070 . 0c470 [101] - busy (c440) Internal 00000000032bc4e0: 0c470 . 00280 [101] - busy (254) 00000000032bc760: 00280 . 000a0 [101] - busy (70) 00000000032bc800: 000a0 . 00080 [101] - busy (4c) 00000000032bc880: 00080 . 00080 [101] - busy (58) 00000000032bc900: 00080 . 00070 [101] - busy (48) 00000000032bc970: 00070 . 00080 [101] - busy (4b) 00000000032bc9f0: 00080 . 00070 [101] - busy (42) 00000000032bca60: 00070 . 00080 [101] - busy (4d) 00000000032bcae0: 00080 . 000a0 [101] - busy (72) 00000000032bcb80: 000a0 . 00080 [101] - busy (51) 00000000032bcc00: 00080 . 000b0 [101] - busy (7c) 00000000032bccb0: 000b0 . 00070 [101] - busy (46) 00000000032bcd20: 00070 . 00080 [101] - busy (4c) 00000000032bcda0: 00080 . 00080 [101] - busy (4f) 00000000032bce20: 00080 . 00080 [101] - busy (52) 00000000032bcea0: 00080 . 00090 [101] - busy (5d) 00000000032bcf30: 00090 . 00080 [101] - busy (4b) 00000000032bcfb0: 00080 . 00070 [101] - busy (43) 00000000032bd020: 00070 . 00080 [101] - busy (4a) 00000000032bd0a0: 00080 . 00080 [101] - busy (49) 00000000032bd120: 00080 . 00070 [101] - busy (48) 00000000032bd190: 00070 . 00070 [101] - busy (44) 00000000032bd200: 00070 . 000a0 [101] - busy (69) 00000000032bd2a0: 000a0 . 00070 [101] - busy (46) 00000000032bd310: 00070 . 00070 [101] - busy (3c) 00000000032bd380: 00070 . 000c0 [101] - busy (8c) 00000000032bd440: 000c0 . 00070 [101] - busy (3c) 00000000032bd4b0: 00070 . 00090 [101] - busy (5c) 00000000032bd540: 00090 . 00090 [101] - busy (5c) 00000000032bd5d0: 00090 . 00090 [101] - busy (5c) 00000000032bd660: 00090 . 000a0 [101] - busy (5c) 00000000032bd700: 000a0 . 00070 [101] - busy (44) 00000000032bd770: 00070 . 00090 [101] - busy (5c) 00000000032bd800: 00090 . 00070 [101] - busy (3c) 00000000032bd870: 00070 . 00050 [100] 00000000032bd8c0: 00050 . 00260 [101] - busy (234) 00000000032bdb20: 00260 . 00070 [101] - busy (3c) 00000000032bdb90: 00070 . 00090 [101] - busy (5c) 00000000032bdc20: 00090 . 00070 [101] - busy (3c) 00000000032bdc90: 00070 . 00070 [101] - busy (3c) 00000000032bdd00: 00070 . 00090 [101] - busy (5c) 00000000032bdd90: 00090 . 00070 [101] - busy (3c) 00000000032bde00: 00070 . 00070 [101] - busy (3c) 00000000032bde70: 00070 . 00090 [101] - busy (5c) 00000000032bdf00: 00090 . 00070 [101] - busy (3c) 00000000032bdf70: 00070 . 00cc0 [100] 00000000032bec30: 00cc0 . 00330 [101] - busy (2fc) 00000000032bef60: 00330 . 00440 [101] - busy (40a) 00000000032bf3a0: 00440 . 00220 [100] 00000000032bf5c0: 00220 . 00330 [101] - busy (2fc) 00000000032bf8f0: 00330 . 04020 [101] - busy (3ff0) Internal 00000000032c3910: 04020 . 02020 [101] - busy (1ff0) Internal 00000000032c5930: 02020 . 00210 [100] 00000000032c5b40: 00210 . 01020 [101] - busy (ff0) Internal 00000000032c6b60: 01020 . 01020 [101] - busy (ff0) Internal 00000000032c7b80: 01020 . 00440 [101] - busy (40c) 00000000032c7fc0: 00440 . 00440 [101] - busy (40a) 00000000032c8400: 00440 . 00430 [101] - busy (3f0) Internal 00000000032c8830: 00430 . 02020 [101] - busy (1ff0) Internal 00000000032ca850: 02020 . 02020 [101] - busy (1ff0) Internal 00000000032cc870: 02020 . 01020 [101] - busy (ff0) Internal 00000000032cd890: 01020 . 00420 [101] - busy (3f0) Internal 00000000032cdcb0: 00420 . 00420 [101] - busy (3f0) Internal 00000000032ce0d0: 00420 . 00420 [101] - busy (3f0) Internal 00000000032ce4f0: 00420 . 003a0 [100] 00000000032ce890: 003a0 . 02020 [101] - busy (1ff0) Internal 00000000032d08b0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000032d28d0: 02020 . 01020 [101] - busy (ff0) Internal 00000000032d38f0: 01020 . 00420 [101] - busy (3f0) Internal 00000000032d3d10: 00420 . 00420 [101] - busy (3f0) Internal 00000000032d4130: 00420 . 003a0 [100] 00000000032d44d0: 003a0 . 00420 [101] - busy (3f0) Internal 00000000032d48f0: 00420 . 01020 [101] - busy (ff0) Internal 00000000032d5910: 01020 . 04020 [101] - busy (3ff0) Internal 00000000032d9930: 04020 . 01020 [101] - busy (ff0) Internal 00000000032da950: 01020 . 04020 [101] - busy (3ff0) Internal 00000000032de970: 04020 . 01020 [101] - busy (ff0) Internal 00000000032df990: 01020 . 04020 [101] - busy (3ff0) Internal 00000000032e39b0: 04020 . 00420 [101] - busy (3f0) Internal 00000000032e3dd0: 00420 . 00020 [100] 00000000032e3df0: 00020 . 04020 [101] - busy (3ff0) Internal 00000000032e7e10: 04020 . 02020 [101] - busy (1ff0) Internal 00000000032e9e30: 02020 . 01020 [101] - busy (ff0) Internal 00000000032eae50: 01020 . 02020 [101] - busy (1ff0) Internal 00000000032ece70: 02020 . 01020 [101] - busy (ff0) Internal 00000000032ede90: 01020 . 000f0 [100] 00000000032edf80: 000f0 . 01020 [101] - busy (ff0) Internal 00000000032eefa0: 01020 . 01020 [101] - busy (ff0) Internal 00000000032effc0: 01020 . 02020 [101] - busy (1ff0) Internal 00000000032f1fe0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000032f4000: 02020 . 00420 [101] - busy (3f0) Internal 00000000032f4420: 00420 . 00160 [100] 00000000032f4580: 00160 . 02020 [101] - busy (1ff0) Internal 00000000032f65a0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000032f85c0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000032fa5e0: 02020 . 08020 [101] - busy (7ff0) Internal 0000000003302600: 08020 . 02020 [101] - busy (1ff0) Internal 0000000003304620: 02020 . 01020 [101] - busy (ff0) Internal 0000000003305640: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003307660: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003309680: 02020 . 08020 [101] - busy (7ff0) Internal 00000000033116a0: 08020 . 02020 [101] - busy (1ff0) Internal 00000000033136c0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033156e0: 02020 . 01020 [101] - busy (ff0) Internal 0000000003316700: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003318720: 02020 . 02020 [101] - busy (1ff0) Internal 000000000331a740: 02020 . 02020 [101] - busy (1ff0) Internal 000000000331c760: 02020 . 02020 [101] - busy (1ff0) Internal 000000000331e780: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033207a0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033227c0: 02020 . 01020 [101] - busy (ff0) Internal 00000000033237e0: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003325800: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003327820: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003329840: 02020 . 01020 [101] - busy (ff0) Internal 000000000332a860: 01020 . 02020 [101] - busy (1ff0) Internal 000000000332c880: 02020 . 01020 [101] - busy (ff0) Internal 000000000332d8a0: 01020 . 02020 [101] - busy (1ff0) Internal 000000000332f8c0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033318e0: 02020 . 08020 [101] - busy (7ff0) Internal 0000000003339900: 08020 . 01020 [101] - busy (ff0) Internal 000000000333a920: 01020 . 02020 [101] - busy (1ff0) Internal 000000000333c940: 02020 . 02020 [101] - busy (1ff0) Internal 000000000333e960: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003340980: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033429a0: 02020 . 01020 [101] - busy (ff0) Internal 00000000033439c0: 01020 . 02020 [101] - busy (1ff0) Internal 00000000033459e0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003347a00: 02020 . 01020 [101] - busy (ff0) Internal 0000000003348a20: 01020 . 02020 [101] - busy (1ff0) Internal 000000000334aa40: 02020 . 02020 [101] - busy (1ff0) Internal 000000000334ca60: 02020 . 02020 [101] - busy (1ff0) Internal 000000000334ea80: 02020 . 01020 [101] - busy (ff0) Internal 000000000334faa0: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003351ac0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003353ae0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003355b00: 02020 . 01020 [101] - busy (ff0) Internal 0000000003356b20: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003358b40: 02020 . 02020 [101] - busy (1ff0) Internal 000000000335ab60: 02020 . 02000 [100] 000000000335cb60: 02000 . 02020 [101] - busy (1ff0) Internal 000000000335eb80: 02020 . 04020 [101] - busy (3ff0) Internal 0000000003362ba0: 04020 . 02020 [101] - busy (1ff0) Internal 0000000003364bc0: 02020 . 01020 [101] - busy (ff0) Internal 0000000003365be0: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003367c00: 02020 . 01020 [101] - busy (ff0) Internal 0000000003368c20: 01020 . 04020 [101] - busy (3ff0) Internal 000000000336cc40: 04020 . 02020 [101] - busy (1ff0) Internal 000000000336ec60: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003370c80: 02020 . 01020 [101] - busy (ff0) Internal 0000000003371ca0: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003373cc0: 02020 . 01020 [101] - busy (ff0) Internal 0000000003374ce0: 01020 . 02020 [101] - busy (1ff0) Internal 0000000003376d00: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003378d20: 02020 . 02020 [101] - busy (1ff0) Internal 000000000337ad40: 02020 . 04020 [101] - busy (3ff0) Internal 000000000337ed60: 04020 . 02020 [101] - busy (1ff0) Internal 0000000003380d80: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003382da0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003384dc0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003386de0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003388e00: 02020 . 02020 [101] - busy (1ff0) Internal 000000000338ae20: 02020 . 02020 [101] - busy (1ff0) Internal 000000000338ce40: 02020 . 02020 [101] - busy (1ff0) Internal 000000000338ee60: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003390e80: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003392ea0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003394ec0: 02020 . 02020 [101] - busy (1ff0) Internal 0000000003396ee0: 02020 . 08020 [101] - busy (7ff0) Internal 000000000339ef00: 08020 . 02020 [101] - busy (1ff0) Internal 00000000033a0f20: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033a2f40: 02020 . 02020 [101] - busy (1ff0) Internal 00000000033a4f60: 02020 . 08020 [101] - busy (7ff0) Internal 00000000033acf80: 08020 . 02020 [101] - busy (1ff0) Internal 00000000033aefa0: 02020 . 00420 [101] - busy (3f0) Internal 00000000033af3c0: 00420 . 00420 [101] - busy (3f0) Internal 00000000033af7e0: 00420 . 00420 [101] - busy (3f0) Internal 00000000033afc00: 00420 . 003c0 [100] 00000000033affc0: 003c0 . 00040 [111] - busy (3d) 00000000033b0000: 00000000 - uncommitted bytes. Heap entries for Segment02 in Heap 0000000002330000 00000000065a0000: 00000 . 00070 [101] - busy (6f) 00000000065a0070: 00070 . 04020 [101] - busy (3ff0) Internal 00000000065a4090: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065a80b0: 04020 . 02020 [101] - busy (1ff0) Internal 00000000065aa0d0: 02020 . 02020 [101] - busy (1ff0) Internal 00000000065ac0f0: 02020 . 08020 [101] - busy (7ff0) Internal 00000000065b4110: 08020 . 02020 [101] - busy (1ff0) Internal 00000000065b6130: 02020 . 04020 [101] - busy (3ff0) Internal 00000000065ba150: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065be170: 04020 . 08020 [101] - busy (7ff0) Internal 00000000065c6190: 08020 . 04020 [101] - busy (3ff0) Internal 00000000065ca1b0: 04020 . 02020 [101] - busy (1ff0) Internal 00000000065cc1d0: 02020 . 04020 [101] - busy (3ff0) Internal 00000000065d01f0: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065d4210: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065d8230: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065dc250: 04020 . 02020 [101] - busy (1ff0) Internal 00000000065de270: 02020 . 08020 [101] - busy (7ff0) Internal 00000000065e6290: 08020 . 04020 [101] - busy (3ff0) Internal 00000000065ea2b0: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065ee2d0: 04020 . 08020 [101] - busy (7ff0) Internal 00000000065f62f0: 08020 . 04020 [101] - busy (3ff0) Internal 00000000065fa310: 04020 . 04020 [101] - busy (3ff0) Internal 00000000065fe330: 04020 . 08020 [101] - busy (7ff0) Internal 0000000006606350: 08020 . 04020 [101] - busy (3ff0) Internal 000000000660a370: 04020 . 04020 [101] - busy (3ff0) Internal 000000000660e390: 04020 . 04020 [101] - busy (3ff0) Internal 00000000066123b0: 04020 . 10020 [101] - busy (fff0) Internal 00000000066223d0: 10020 . 04020 [101] - busy (3ff0) Internal 00000000066263f0: 04020 . 04020 [101] - busy (3ff0) Internal 000000000662a410: 04020 . 04020 [101] - busy (3ff0) Internal 000000000662e430: 04020 . 04020 [101] - busy (3ff0) Internal 0000000006632450: 04020 . 10020 [101] - busy (fff0) Internal 0000000006642470: 10020 . 04020 [101] - busy (3ff0) Internal 0000000006646490: 04020 . 04020 [101] - busy (3ff0) Internal 000000000664a4b0: 04020 . 04020 [101] - busy (3ff0) Internal 000000000664e4d0: 04020 . 04020 [101] - busy (3ff0) Internal 00000000066524f0: 04020 . 08020 [101] - busy (7ff0) Internal 000000000665a510: 08020 . 08020 [101] - busy (7ff0) Internal 0000000006662530: 08020 . 04020 [101] - busy (3ff0) Internal 0000000006666550: 04020 . 04020 [101] - busy (3ff0) Internal 000000000666a570: 04020 . 10020 [101] - busy (fff0) Internal 000000000667a590: 10020 . 04020 [101] - busy (3ff0) Internal 000000000667e5b0: 04020 . 08020 [101] - busy (7ff0) Internal 00000000066865d0: 08020 . 08020 [101] - busy (7ff0) Internal 000000000668e5f0: 08020 . 10020 [101] - busy (fff0) Internal 000000000669e610: 10020 . 04020 [101] - busy (3ff0) Internal 00000000066a2630: 04020 . 10020 [101] - busy (fff0) Internal 00000000066b2650: 10020 . 08020 [101] - busy (7ff0) Internal 00000000066ba670: 08020 . 02020 [101] - busy (1ff0) Internal 00000000066bc690: 02020 . 08020 [101] - busy (7ff0) Internal 00000000066c46b0: 08020 . 08020 [101] - busy (7ff0) Internal 00000000066cc6d0: 08020 . 10020 [101] - busy (fff0) Internal 00000000066dc6f0: 10020 . 08020 [101] - busy (7ff0) Internal 00000000066e4710: 08020 . 08020 [101] - busy (7ff0) Internal 00000000066ec730: 08020 . 08020 [101] - busy (7ff0) Internal 00000000066f4750: 08020 . 10020 [101] - busy (fff0) Internal 0000000006704770: 10020 . 08020 [101] - busy (7ff0) Internal 000000000670c790: 08020 . 10020 [101] - busy (fff0) Internal 000000000671c7b0: 10020 . 08020 [101] - busy (7ff0) Internal 00000000067247d0: 08020 . 08020 [101] - busy (7ff0) Internal 000000000672c7f0: 08020 . 20020 [101] - busy (1fff0) Internal 000000000674c810: 20020 . 08020 [101] - busy (7ff0) Internal 0000000006754830: 08020 . 08020 [101] - busy (7ff0) Internal 000000000675c850: 08020 . 08020 [101] - busy (7ff0) Internal 0000000006764870: 08020 . 08020 [101] - busy (7ff0) Internal 000000000676c890: 08020 . 20020 [101] - busy (1fff0) Internal 000000000678c8b0: 20020 . 08020 [101] - busy (7ff0) Internal 00000000067948d0: 08020 . 08020 [101] - busy (7ff0) Internal 000000000679c8f0: 08020 . 02020 [101] - busy (1ff0) Internal 000000000679e910: 02020 . 016b0 [100] 000000000679ffc0: 016b0 . 00040 [111] - busy (3d) 00000000067a0000: 00000000 - uncommitted bytes. 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EDITAR 10/26/2012

Finalmente descubrí el lugar que causaba la fuga, al inspeccionar el contenido de la memoria dentro de la entrada del Heap interno . Contiene una cantidad de asignación de memoria causada por el mismo operator new . No sé por qué están todos combinados en una sola entrada de almacenamiento dinámico, pero al mirar el contenido, logré encontrar el código que causaba la fuga. Tal vez, es una función CRT para combinar todos los datos similares en una entrada de montón? ¿O no entiendo completamente el significado de la entrada en el montón?