windbg script learn

从需求出发:

定位一个句柄占用导致的文件无法删除的问题:

#include 
#include 
#include 
#include 
std::wstring getlineFromConsole()
{
	std::wstring strRet;
	std::getline(std::wcin, strRet);
	return strRet;
}
void ErrorWork(const std::wstring strPath)
{
	auto hFile = CreateFile(strPath.c_str(),
		GENERIC_READ,
		FILE_SHARE_READ | FILE_SHARE_WRITE,// 不共享删除
		NULL,
		OPEN_ALWAYS,
		FILE_ATTRIBUTE_NORMAL,
		NULL);
	if (hFile == NULL || hFile == INVALID_HANDLE_VALUE) {
		std::wcout << L"open [" << strPath << L"] error with gle[" << GetLastError() << L"]" << std::endl;
	}
}
int main()
{
	auto filePath = getlineFromConsole();
	while(!std::filesystem::exists(filePath)) {
		std::wcout << L"[" << filePath << L"] not exis" << std::endl;
		filePath = getlineFromConsole();
	}
	ErrorWork(filePath);
	std::error_code ecode;
	if (!std::filesystem::remove(filePath, ecode)) {
		std::wcout << "del [" << filePath << L"] error with[" << ecode << L"]" << std::endl;
	}
	else {
		std::wcout << "del [" << filePath << L"] success" << std::endl;
	}

	return 0;

}

https://docs.microsoft.com/en-us/windows-hardware/drivers/debugger/-htrace

 

0:004> !htrace -diff
Handle tracing information snapshot successfully taken.
0x28 new stack traces since the previous snapshot.
Ignoring handles that were already closed...
Outstanding handles opened since the previous snapshot:
--------------------------------------
Handle = 0x00000130 - OPEN
Thread ID = 0x00005030, Process ID = 0x00001b90

0x7c864f50: +0x7c864f50
0x7c864688: +0x7c864688
0x7c3d3c18: +0x7c3d3c18
0x9911c724: +0x9911c724
0x98d7513a: +0x98d7513a
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e20ac: ntdll!NtOpenFile+0x0000000c
0x776f632d: ntdll!RtlProcessFlsData+0x000000cd
--------------------------------------
Handle = 0x000000e8 - OPEN
Thread ID = 0x00005030, Process ID = 0x00001b90

0x7c8be19c: +0x7c8be19c
0x7c8be01d: +0x7c8be01d
0x7c8c003f: +0x7c8c003f
0x7c3d3c18: +0x7c3d3c18
0x9911e414: +0x9911e414
0x98d76532: +0x98d76532
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e7c: ntdll!ZwOpenKey+0x0000000c
--------------------------------------
Handle = 0x000000e4 - OPEN
Thread ID = 0x00005030, Process ID = 0x00001b90

0x7c864f50: +0x7c864f50
0x7c864719: +0x7c864719
0x7c3d3c18: +0x7c3d3c18
0x9911cb64: +0x9911cb64
0x98d74dc5: +0x98d74dc5
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e22cc: ntdll!NtCreateFile+0x0000000c
0x770a217d: KERNELBASE!CreateFileW+0x0000034d
--------------------------------------
Handle = 0x000000b4 - OPEN
Thread ID = 0x00005030, Process ID = 0x00001b90

0x7c8be19c: +0x7c8be19c
0x7c8be01d: +0x7c8be01d
0x7c8c003f: +0x7c8c003f
0x7c3d3c18: +0x7c3d3c18
0x9911e414: +0x9911e414
0x98d76532: +0x98d76532
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e7c: ntdll!ZwOpenKey+0x0000000c
--------------------------------------

大多数时候,当我们发现了问题,已经知道了当前有问题的句柄是什么,就直接只看目标的句柄的堆栈即可:

0:004> !htrace 0xe4
--------------------------------------
Handle = 0x000000e4 - OPEN
Thread ID = 0x00005030, Process ID = 0x00001b90

0x7c864f50: +0x7c864f50
0x7c864719: +0x7c864719
0x7c3d3c18: +0x7c3d3c18
0x9911cb64: +0x9911cb64
0x98d74dc5: +0x98d74dc5
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e22cc: ntdll!NtCreateFile+0x0000000c
0x770a217d: KERNELBASE!CreateFileW+0x0000034d

--------------------------------------

可以看到,这里的堆栈显然是残缺的,导致我们只能看到很少的信息,需要想办法将信息拿更全一些:

想到的办法是:通过python 脚本,抽取出来最底层的调用点,并下断点:

#/usr/bin/env python
# -*- coding: UTF-8 -*-

import os
import sys
print(sys.argv)
import time

def get_break_from_line(line):
    first_find = line.find(': ')
    second_find = line.find('+')
    if second_find != -1:
        return 'bu ' + line[first_find + 2:second_find] + ' "kp;g;";'
    else:
        return ''

def get_lines_from_file(file_path):
    with open(file_path,'rt',encoding='utf-8') as f:
        try:
            data = f.readlines()
        except Exception as e:
            with open(file_path,'rt',encoding='gbk') as f:
                data = f.readlines()

        return data

def get_map_dat(file_path):
    out_put = {}
    data = get_lines_from_file(file_path)
    if len(data) != 0:
        modeopen = 0
        modeclose = 1;
        currentmode = 3
        preline = ''
        for line in data:
            if line == '\r' or line == '\n' or line == '\r\n':
                continue
            if line.find('- OPEN') != -1:
                #print(line)
                currentmode = modeopen;
            elif line.find('- CLOSE') != -1:
                #print(line)
                currentmode = modeclose
            elif line.find('Thread ID =') != -1:
                #print(line)
                if currentmode == modeopen:
                    if not line in out_put:
                        out_put[line] = 0
                    out_put[line] = out_put[line] + 1
                elif currentmode == modeclose:
                    if not line in out_put:
                        out_put[line] = 0
                    out_put[line] = out_put[line] - 1
                else:
                    error
            elif line.find('--------------------------------------') != -1:
                #print('pre line',preline)
                if currentmode == modeopen:
                    if not preline in out_put:
                        out_put[preline] = 0
                    out_put[preline] = out_put[preline] + 1
                elif currentmode == modeclose:
                    if not preline in out_put:
                        out_put[preline] = 0
                    out_put[preline] = out_put[preline] - 1
            preline = line
    print('final result')
    for item in out_put:
        if out_put[item] > 0:
            print(item,out_put[item])
    for item in out_put:
        if out_put[item] < 0:
            print(item,out_put[item])        

    dbg_line = ''
    for item in out_put:
        if out_put[item] > 0:
            dbg_line = dbg_line + get_break_from_line(item)
    print('dbg_line')
    print(dbg_line)
get_map_dat(sys.argv[1])

输出为:

E:\wds_learn>python windbg_log_an.py runlog.txt
['windbg_log_an.py', 'runlog.txt']
final result
Thread ID = 0x00005030, Process ID = 0x00001b90
 1
0x770a217d: KERNELBASE!CreateFileW+0x0000034d
 1
dbg_line
bu KERNELBASE!CreateFileW "kp;g;";

上面的做法,就是为了缩小范围,在复杂的多线程执行环境下,常常一堆线程在做open 和 close 操作,我们把那些打开了却不释放的线程列出来,另外,我们这里假定windbg获取的调用栈是比较全的,由此调用栈顶部的未知的open 和 close 也应该配对,否则,我们也统计出来。

为了解决最上面的,!htrace 0xec 获取的堆栈不太全的问题,我们需要获取一个windbg 断点的列表,并在函数执行的时候就输出其调用栈,然后,继续执行,效果如下:

0:000> !htrace -enable
Handle tracing enabled.
Handle tracing information snapshot successfully taken.
0:000> bu KERNELBASE!CreateFileW "kp;g;";
0:000> g
*** WARNING: Unable to verify checksum for cppLeakHandle.exe
 # ChildEBP RetAddr  
WARNING: Stack unwind information not available. Following frames may be wrong.
00 012ff6c4 0011d6b1 KERNELBASE!CreateFileW
01 012ff7dc 001268a3 cppLeakHandle!ErrorWork(class std::basic_string,std::allocator > strPath = "e:\wds_learn\temp.txt")+0x71 [E:\wds_learn\cppLeakHandle\cppLeakHandle\main.cpp @ 13] 
02 012ff9e4 0012a2c3 cppLeakHandle!main(void)+0x163 [E:\wds_learn\cppLeakHandle\cppLeakHandle\main.cpp @ 31] 
03 012ffa04 0012a117 cppLeakHandle!invoke_main(void)+0x33 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 78] 
04 012ffa60 00129fad cppLeakHandle!__scrt_common_main_seh(void)+0x157 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 288] 
05 012ffa68 0012a348 cppLeakHandle!__scrt_common_main(void)+0xd [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 331] 
06 012ffa70 771c6359 cppLeakHandle!mainCRTStartup(void)+0x8 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp @ 17] 
07 012ffa80 776d7b74 KERNEL32!BaseThreadInitThunk+0x19
08 012ffadc 776d7b44 ntdll!RtlGetAppContainerNamedObjectPath+0xe4
09 012ffaec 00000000 ntdll!RtlGetAppContainerNamedObjectPath+0xb4
 # ChildEBP RetAddr  
WARNING: Stack unwind information not available. Following frames may be wrong.
00 012ff5c8 0012922d KERNELBASE!CreateFileW
01 012ff600 0012720c cppLeakHandle!__std_fs_open_handle(__std_fs_file_handle * _Handle = 0x012ff6c0, wchar_t * _File_name = 0x014657c8 "e:\wds_learn\temp.txt", __std_access_rights _Desired_access = _Delete (0n65536), __std_fs_file_flags _Flags = 0n35651584 (No matching enumerant))+0x3d [d:\agent\_work\6\s\src\vctools\crt\github\stl\src\filesystem.cpp @ 291] 
02 012ff61c 00129466 cppLeakHandle!std::_Fs_file::_Fs_file(wchar_t * _File_name = 0x014657c8 "e:\wds_learn\temp.txt", __std_access_rights _Desired_access = _Delete (0n65536), __std_fs_file_flags _Flags = 0n35651584 (No matching enumerant), __std_win_error * _Err = 0x012ff6c8)+0x1c [d:\agent\_work\6\s\src\vctools\crt\github\stl\inc\xfilesystem_abi.h @ 326] 
03 012ff6d8 001237c5 cppLeakHandle!__std_fs_remove(wchar_t * _Target = 0x014657c8 "e:\wds_learn\temp.txt")+0xf6 [d:\agent\_work\6\s\src\vctools\crt\github\stl\src\filesystem.cpp @ 651] 
04 012ff7f0 0012691b cppLeakHandle!std::error_code::category()+0x35 [D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.24.28314\include\filesystem @ 3572] 
05 012ff9e4 0012a2c3 cppLeakHandle!main(void)+0x1db [E:\wds_learn\cppLeakHandle\cppLeakHandle\main.cpp @ 35] 
06 012ffa04 0012a117 cppLeakHandle!invoke_main(void)+0x33 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 78] 
07 012ffa60 00129fad cppLeakHandle!__scrt_common_main_seh(void)+0x157 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 288] 
08 012ffa68 0012a348 cppLeakHandle!__scrt_common_main(void)+0xd [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_common.inl @ 331] 
09 012ffa70 771c6359 cppLeakHandle!mainCRTStartup(void)+0x8 [d:\agent\_work\6\s\src\vctools\crt\vcstartup\src\startup\exe_main.cpp @ 17] 
0a 012ffa80 776d7b74 KERNEL32!BaseThreadInitThunk+0x19
0b 012ffadc 776d7b44 ntdll!RtlGetAppContainerNamedObjectPath+0xe4
0c 012ffaec 00000000 ntdll!RtlGetAppContainerNamedObjectPath+0xb4

当然,实际情况,比这个更加复杂,可能从导致问题的点,到该隐藏的问题开始影响程序正常执行,已经过了很久很久。这个时候,文件操作将有特别特别多。我们不能在所有情况下都输出调用栈。

比如,我们通过ui 程序来重写我们的测试程序:

mfc 工程如下:


// MfcHandleLeakDlg.cpp : implementation file
//

#include "pch.h"
#include "framework.h"
#include "MfcHandleLeak.h"
#include "MfcHandleLeakDlg.h"
#include "afxdialogex.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// CAboutDlg dialog used for App About

class CAboutDlg : public CDialogEx
{
public:
	CAboutDlg();

// Dialog Data
#ifdef AFX_DESIGN_TIME
	enum { IDD = IDD_ABOUTBOX };
#endif

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV support

// Implementation
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialogEx(IDD_ABOUTBOX)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialogEx)
END_MESSAGE_MAP()


// CMfcHandleLeakDlg dialog



CMfcHandleLeakDlg::CMfcHandleLeakDlg(CWnd* pParent /*=nullptr*/)
	: CDialogEx(IDD_MFCHANDLELEAK_DIALOG, pParent)
	, m_targetFilePath(_T(""))
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CMfcHandleLeakDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialogEx::DoDataExchange(pDX);
	DDX_Text(pDX, IDC_EDIT_FILE_PATH, m_targetFilePath);
}

BEGIN_MESSAGE_MAP(CMfcHandleLeakDlg, CDialogEx)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BUTTON3, &CMfcHandleLeakDlg::OnBnClickedButton3)
	ON_BN_CLICKED(IDC_BUTTON1, &CMfcHandleLeakDlg::OnBnClickedButton1)
	ON_BN_CLICKED(IDC_BUTTON2, &CMfcHandleLeakDlg::OnBnClickedButton2)
	ON_BN_CLICKED(IDC_BUTTON_NORMAL_OP, &CMfcHandleLeakDlg::OnBnClickedButtonNormalOp)
END_MESSAGE_MAP()


// CMfcHandleLeakDlg message handlers

BOOL CMfcHandleLeakDlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();

	// Add "About..." menu item to system menu.

	// IDM_ABOUTBOX must be in the system command range.
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != nullptr)
	{
		BOOL bNameValid;
		CString strAboutMenu;
		bNameValid = strAboutMenu.LoadString(IDS_ABOUTBOX);
		ASSERT(bNameValid);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// Set the icon for this dialog.  The framework does this automatically
	//  when the application's main window is not a dialog
	SetIcon(m_hIcon, TRUE);			// Set big icon
	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here
	m_targetFilePath = LR"(E:\wds_learn\temp.txt)";
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CMfcHandleLeakDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialogEx::OnSysCommand(nID, lParam);
	}
}

// If you add a minimize button to your dialog, you will need the code below
//  to draw the icon.  For MFC applications using the document/view model,
//  this is automatically done for you by the framework.

void CMfcHandleLeakDlg::OnPaint()
{
	if (IsIconic())
	{
		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast(dc.GetSafeHdc()), 0);

		// Center icon in client rectangle
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// Draw the icon
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialogEx::OnPaint();
	}
}

// The system calls this function to obtain the cursor to display while the user drags
//  the minimized window.
HCURSOR CMfcHandleLeakDlg::OnQueryDragIcon()
{
	return static_cast(m_hIcon);
}



void CMfcHandleLeakDlg::OnBnClickedButton3()
{
	BOOL isOpen = TRUE;		//是否打开(否则为保存)
	CString defaultDir = LR"(E:\wds_learn)";	//默认打开的文件路径
	CString fileName = L"";			//默认打开的文件名
	CFileDialog openFileDlg(isOpen, defaultDir, fileName, OFN_HIDEREADONLY | OFN_READONLY, nullptr, NULL);
	INT_PTR result = openFileDlg.DoModal();
	
	if (result == IDOK) {
		m_targetFilePath = openFileDlg.GetPathName();
		UpdateData(FALSE);
	}
}
#include 
#include 
void ErrorWork(CString strPath)
{
	auto hFile = CreateFile(strPath.GetBuffer(),
		GENERIC_READ,
		FILE_SHARE_READ | FILE_SHARE_WRITE,// 不共享删除
		NULL,
		OPEN_ALWAYS,
		FILE_ATTRIBUTE_NORMAL,
		NULL);
	if (hFile == NULL || hFile == INVALID_HANDLE_VALUE) {
		std::wcout << L"open [" << strPath << L"] error with gle[" << GetLastError() << L"]" << std::endl;
	}
}
void CMfcHandleLeakDlg::OnBnClickedButton1()
{
	UpdateData(TRUE);
	std::thread t1(ErrorWork, m_targetFilePath);
	t1.join();
}
#include 
void delOP(CString strPath)
{
	std::error_code ecode;
	if (!std::filesystem::remove(strPath.GetString(), ecode)) {
		std::wcout << "del [" << strPath.GetString() << L"] error with[";
		std::cout << ecode.message();
		std::wcout << L"]" << std::endl;
	}
}
void CMfcHandleLeakDlg::OnBnClickedButton2()
{
	UpdateData(TRUE);
	std::thread t1(delOP, m_targetFilePath);
	t1.join();
}
#include 
void NormalOp(CString strPath)
{
	std::wifstream fileObj{ std::wstring(strPath.GetString()) };
	if (!fileObj.bad()) {
		std::wcout << fileObj.rdbuf();
		fileObj.close();
	}
}
void CMfcHandleLeakDlg::OnBnClickedButtonNormalOp()
{
	UpdateData(TRUE);
	std::thread t1(NormalOp, m_targetFilePath);
	t1.join();
}

重复上面的操作如下:

 

0:025> !htrace 0x268
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c8a2c3a: +0x7c8a2c3a
0x7c8a2940: +0x7c8a2940
0x7c3d3c18: +0x7c3d3c18
0x9911ca04: +0x9911ca04
0x98d7555b: +0x98d7555b
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e221c: ntdll!NtCreateSection+0x0000000c
0x770a0779: KERNELBASE!CreateFileMappingNumaW+0x000000b9
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
0x98f2566f: +0x98f2566f
0x98f211dc: +0x98f211dc
0x98f0929d: +0x98f0929d
0x98e74880: +0x98e74880
0x7c3d3c18: +0x7c3d3c18
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c864f50: +0x7c864f50
0x7c864719: +0x7c864719
0x7c3d3c18: +0x7c3d3c18
0x9911cb64: +0x9911cb64
0x98d74dc5: +0x98d74dc5
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
0x98f2566f: +0x98f2566f
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
0x98f2566f: +0x98f2566f
0x98f211dc: +0x98f211dc
0x98f0929d: +0x98f0929d
0x98e74880: +0x98e74880
0x7c3d3c18: +0x7c3d3c18
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c8be19c: +0x7c8be19c
0x7c8be01d: +0x7c8be01d
0x7c8c003f: +0x7c8c003f
0x7c3d3c18: +0x7c3d3c18
0x9911e414: +0x9911e414
0x98d77c9c: +0x98d77c9c
0x98d7714f: +0x98d7714f
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
0x98f2566f: +0x98f2566f
0x98f211dc: +0x98f211dc
0x98f0929d: +0x98f0929d
0x98e74880: +0x98e74880
0x7c3d3c18: +0x7c3d3c18
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c8be19c: +0x7c8be19c
0x7c8be01d: +0x7c8be01d
0x7c8c003f: +0x7c8c003f
0x7c3d3c18: +0x7c3d3c18
0x9911e414: +0x9911e414
0x98d77c9c: +0x98d77c9c
0x98d7714f: +0x98d7714f
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d8856d: +0x98d8856d
0x97192709: +0x97192709
0x9911fe34: +0x9911fe34
0x7c88eab5: +0x7c88eab5
0x98e1a4f8: +0x98e1a4f8
0x98f25be6: +0x98f25be6
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00004744, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x990f196b: +0x990f196b
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e4c: ntdll!NtClose+0x0000000c
0x776c97dd: ntdll!RtlSetThreadWorkOnBehalfTicket+0x0000059d
0x776baed4: ntdll!RtlOpenCurrentUser+0x000002b4
0x776a4dc6: ntdll!RtlRbInsertNodeEx+0x00000686
0x776c7f59: ntdll!TpCallbackIndependent+0x000029d9
0x776c6adc: ntdll!TpCallbackIndependent+0x0000155c
0x771c6359: KERNEL32!BaseThreadInitThunk+0x00000019
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00004744, Process ID = 0x00004b08

0x7c8a2c3a: +0x7c8a2c3a
0x7c8a2940: +0x7c8a2940
0x7c3d3c18: +0x7c3d3c18
0x9911ca04: +0x9911ca04
0x98d7555b: +0x98d7555b
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x990f196b: +0x990f196b
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e221c: ntdll!NtCreateSection+0x0000000c
0x776c9789: ntdll!RtlSetThreadWorkOnBehalfTicket+0x00000549
0x776baed4: ntdll!RtlOpenCurrentUser+0x000002b4
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e4c: ntdll!NtClose+0x0000000c
0x770a24ba: KERNELBASE!CloseHandle+0x0000004a
0x69db2b31: thumbcache!CreateMutexWithUserSecurity+0x00000151
0x69db2989: thumbcache!CThumbnailCacheIndex::GetDataFileSize+0x000000f9
0x69db2173: thumbcache!CThumbnailCache::_GetCurrentCacheSize+0x00000503
0x69db09a9: thumbcache!CThumbnailCache::_CheckIfResizingOfCacheFilesNeeded+0x0000004c
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c8a9e35: +0x7c8a9e35
0x7c8a9803: +0x7c8a9803
0x7c3d3c18: +0x7c3d3c18
0x9911c584: +0x9911c584
0x98d7ba94: +0x98d7ba94
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1fdc: ntdll!NtOpenProcess+0x0000000c
0x770a0e28: KERNELBASE!OpenProcess+0x00000048
--------------------------------------
Handle = 0x00000268 - CLOSE
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c3d3c18: +0x7c3d3c18
0x77661cbc: +0x77661cbc
0x77661c7b: +0x77661c7b
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e4c: ntdll!NtClose+0x0000000c
0x771d95ed: KERNEL32!CreateToolhelp32Snapshot+0x00003cdd
0x771c351d: KERNEL32!CreateActCtxWWorker+0x0000166d
0x771c32a6: KERNEL32!CreateActCtxWWorker+0x000013f6
0x771c2263: KERNEL32!CreateActCtxWWorker+0x000003b3
0x6adc70f1: COMCTL32!GetWindowSubclass+0x00000321
--------------------------------------
Handle = 0x00000268 - OPEN
Thread ID = 0x00002fbc, Process ID = 0x00004b08

0x7c8be19c: +0x7c8be19c
0x7c8be01d: +0x7c8be01d
0x7c8c003f: +0x7c8c003f
0x7c3d3c18: +0x7c3d3c18
0x9911e414: +0x9911e414
0x98d76532: +0x98d76532
0x98d77123: +0x98d77123
0x77661783: +0x77661783
0x77661199: +0x77661199
0x98d7c77a: +0x98d7c77a
0x98d7c637: +0x98d7c637
0x99153ff3: +0x99153ff3
0x99141df5: +0x99141df5
0x990f1853: +0x990f1853
0x990f17fe: +0x990f17fe
0x776e1e7c: ntdll!ZwOpenKey+0x0000000c

--------------------------------------
Parsed 0x6111 stack traces.
Dumped 0xD stack traces.

分析日志结果为:

E:\wds_learn>python windbg_log_an.py runlog.txt
['windbg_log_an.py', 'runlog.txt']
final result
Thread ID = 0x00002fbc, Process ID = 0x00004b08
 1
0x770a0779: KERNELBASE!CreateFileMappingNumaW+0x000000b9
 1
0x98f2566f: +0x98f2566f
 1
0x98f25be6: +0x98f25be6
 2
0x776baed4: ntdll!RtlOpenCurrentUser+0x000002b4
 1
0x770a0e28: KERNELBASE!OpenProcess+0x00000048
 1
0x776e1e7c: ntdll!ZwOpenKey+0x0000000c
 1
0x7c3d3c18: +0x7c3d3c18
 -3
0x771c6359: KERNEL32!BaseThreadInitThunk+0x00000019
 -1
0x69db09a9: thumbcache!CThumbnailCache::_CheckIfResizingOfCacheFilesNeeded+0x0000004c
 -1
0x6adc70f1: COMCTL32!GetWindowSubclass+0x00000321
 -1
dbg_line
bu KERNELBASE!CreateFileMappingNumaW "kp;g;";bu  "kp;g;";bu  "kp;g;";bu ntdll!RtlOpenCurrentUser "kp;g;";bu KERNELBASE!OpenProcess "kp;g;";bu ntdll!ZwOpenKey "kp;g;";

只有一个线程id 异常,且泄露了一次,基本就比较靠谱了,实际工作中,我们可以结合这个线程的角色,做进一步的分析,另外,我们看到,这里面有很多不是文件相关的,我们可以直接去除就好,另外还有直接是纯地址,一点符号都没有的,这种情况,我估计是符号不全。有符号了,就会好一点。尝试设置符号路径:

-------------未完待续,,,不完整,待补充

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