我们有一个旧的代码库，我们使用Windows XP SP3下的C ++ Qt框架（v4.6.3）开发。使用该代码库构建的应用程序在Windows XP下无需解决问题。
根据客户要求，我们将应用程序部署到Windows 7 x64计算机上。之后，当我们尝试启动应用程序时，我们在发布版本中遇到了随机崩溃问题。崩溃时，应用程序消耗近2GB的内存。如果我们将应用程序兼容性更改为Windows XP SP3，则崩溃问题就会消失。在调试模式下也不会发生崩溃。
我们收集了一些关于崩溃问题的日志。下面给出了日志：
1.应用程序崩溃后的Windows日志。
Problem signature:
Problem Event Name: APPCRASH
Application Name: kmclient3.exe
Application Version: 0.0.0.0
Application Timestamp: 55b72d4f
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.1.7601.18409
Fault Module Timestamp: 53159a86
Exception Code: e06d7363
Exception Offset: 0000c42d
OS Version: 6.1.7601.2.1.0.256.48
Locale ID: 1055
Additional Information 1: 9c29
Additional Information 2: 9c2952f45ffd526b51f7caf2e8b92e02
Additional Information 3: e72c
Additional Information 4: e72c8eab1d594c6991d297d4615a53d6
2.在应用程序崩溃后附加调试程序时的.WinDbg日志。
** wait with pending attach
Symbol search path is: E:\Symbols
Executable search path is:
ModLoad: 01220000 014f7000 E:\YERLISINYAL09\YAZILIM\build\TKM_crash_test\kmclient3.exe
ModLoad: 76dd0000 76f79000 C:\Windows\SYSTEM32\ntdll.dll
ModLoad: 76fb0000 77130000 ntdll.dll
ModLoad: 00000000`748f0000 00000000`7492f000 C:\Windows\SYSTEM32\wow64.dll
ModLoad: 00000000`74890000 00000000`748ec000 C:\Windows\SYSTEM32\wow64win.dll
ModLoad: 00000000`74880000 00000000`74888000 C:\Windows\SYSTEM32\wow64cpu.dll
ModLoad: 00000000`769f0000 00000000`76b00000 KERNEL32.dll
ModLoad: 00000000`74c30000 00000000`74c77000 KERNELBASE.dll
ModLoad: 00000000`596e0000 00000000`5971e000 UMEngx86.dll
ModLoad: 00000000`67000000 00000000`67211000 QtCore4.dll
ModLoad: 00000000`74ad0000 00000000`74bd0000 USER32.dll
ModLoad: 00000000`75310000 00000000`753a0000 GDI32.dll
ModLoad: 00000000`75100000 00000000`7510a000 LPK.dll
ModLoad: 00000000`75a60000 00000000`75afd000 USP10.dll
ModLoad: 00000000`76920000 00000000`769cc000 msvcrt.dll
ModLoad: 00000000`74c90000 00000000`74d30000 ADVAPI32.dll
ModLoad: 00000000`76760000 00000000`76779000 SECHOST.dll
ModLoad: 00000000`75220000 00000000`75310000 RPCRT4.dll
ModLoad: 00000000`74950000 00000000`749b0000 SspiCli.dll
ModLoad: 00000000`74940000 00000000`7494c000 CRYPTBASE.dll
ModLoad: 00000000`754c0000 00000000`7561c000 ole32.dll
ModLoad: 00000000`757b0000 00000000`757e5000 WS2_32.dll
ModLoad: 00000000`74c80000 00000000`74c86000 NSI.dll
ModLoad: 00000000`5a5a0000 00000000`5a62e000 MSVCP90.dll
ModLoad: 00000000`737f0000 00000000`73893000 MSVCR90.dll
ModLoad: 00000000`65000000 00000000`657a7000 QtGui4.dll
ModLoad: 00000000`749b0000 00000000`74a2b000 COMDLG32.dll
ModLoad: 00000000`757f0000 00000000`75847000 SHLWAPI.dll
ModLoad: 00000000`5ce00000 00000000`5ce84000 COMCTL32.dll
ModLoad: 00000000`75b00000 00000000`7674a000 SHELL32.dll
ModLoad: 00000000`76b10000 00000000`76b9f000 OLEAUT32.dll
ModLoad: 00000000`74bd0000 00000000`74c30000 IMM32.dll
ModLoad: 00000000`75120000 00000000`751ec000 MSCTF.dll
ModLoad: 00000000`5a560000 00000000`5a592000 WINMM.dll
ModLoad: 00000000`74810000 00000000`74861000 WINSPOOL.DRV
ModLoad: 00000000`61000000 00000000`61055000 QtXml4.dll
ModLoad: 00000000`66000000 00000000`66045000 QtSvg4.dll
ModLoad: 00000000`64000000 00000000`640ea000 QtNetwork4.dll
ModLoad: 00000000`62000000 00000000`62031000 QtSql4.dll
ModLoad: 00000000`70c40000 00000000`70cc0000 UxTheme.dll
ModLoad: 00000000`70c20000 00000000`70c33000 dwmapi.dll
ModLoad: 00000000`753a0000 00000000`75423000 CLBCatQ.DLL
ModLoad: 00000000`59540000 00000000`5969d000 inkobj.dll
ModLoad: 00000000`72110000 00000000`72124000 ATL.DLL
ModLoad: 00000000`00e90000 00000000`01020000 gdiplus.dll
ModLoad: 00000000`732c0000 00000000`732d6000 CRYPTSP.dll
ModLoad: 00000000`73270000 00000000`732ab000 RSAENH.dll
ModLoad: 00000000`72f30000 00000000`72f3e000 RpcRtRemote.dll
ModLoad: 00000000`59530000 00000000`5953d000 TpcPS.DLL
ModLoad: 00000000`10000000 00000000`10011000 qsqlmysql4.dll
ModLoad: 00000000`550e0000 00000000`55677000 libmysql.dll
ModLoad: 00000000`735f0000 00000000`735f8000 Secur32.dll
ModLoad: 00000000`72f90000 00000000`72fa0000 nlaapi.dll
ModLoad: 00000000`72f60000 00000000`72f70000 NAPINSP.dll
ModLoad: 00000000`72f40000 00000000`72f52000 PNRPNSP.dll
ModLoad: 00000000`734c0000 00000000`734fc000 MSWSOCK.dll
ModLoad: 00000000`72ee0000 00000000`72f24000 DNSAPI.dll
ModLoad: 00000000`72ed0000 00000000`72ed8000 WINRNR.dll
ModLoad: 00000000`6de50000 00000000`6de56000 rasadhlp.dll
ModLoad: 00000000`734b0000 00000000`734b5000 WSHTCPIP.dll
Break-in sent, waiting 30 seconds...
WARNING: Break-in timed out, suspending.
This is usually caused by another thread holding the loader lock
(1a2c.106c): Wake debugger - code 80000007 (first chance)
*** ERROR: Symbol file could not be found. Defaulted to export symbols for KERNELBASE.dll -
KERNELBASE!RaiseException+0x58:
74c3c42d c9 leave
0:000:x86> g
** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\SYSTEM32\ntdll.dll -
ntdll!NtWaitForWorkViaWorkerFactory+0xa:
00000000`76e22bba c3 ret
0:004> g
^ No runnable debuggees error in 'g'
3.打开崩溃转储时的.WinDbg日志。
Loading Dump File [C:\Users\onur.ozcelik.BILISIM\Desktop\kmclient3.DMP]
User Mini Dump File with Full Memory: Only application data is available
Symbol search path is: E:\Symbols
Executable search path is:
Windows 7 Version 7601 (Service Pack 1) MP (12 procs) Free x86 compatible
Product: WinNt, suite: SingleUserTS
Machine Name:
Debug session time: Tue Jul 28 10:46:30.000 2015 (GMT+3)
System Uptime: 0 days 2:42:56.184
Process Uptime: 0 days 0:02:46.000
........................................................
*** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdll.dll -
eax=00000002 ebx=0000000b ecx=00000000 edx=00000000 esi=00000002 edi=00407c58
eip=76fd1f46 esp=036ffac4 ebp=036ffc24 iopl=0 nv up ei pl zr na pe nc
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00000246
ntdll!NtWaitForWorkViaWorkerFactory+0x12:
76fd1f46 83c404 add esp,4
0:000> g
^ No runnable debuggees error in 'g'
导致崩溃问题的原因是什么？ 任何想法或建议？
答案 0 :(得分：1)
这只是意味着您的程序中存在错误。没有看到代码很难分辨到哪里。我建议使用cout或printf或qDebug()来检测代码运行良好的最后一行。这将为您提供发生错误的区域。这就是我在多线程程序中解决我的bug的方法。我还建议你阅读this。