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用过windbg工具的请进来，指点一下？

2013-06-28 10:41:48 3.2k 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

ponydph 墨衍会员 · AI 创作全网分发关注 + 加入社区

Windbg与LiveKd对比：内核调试工具选型建议深入比较Windbg和LiveKd在内核调试中的实际表现，结合windbg的全面功能与适用场景，帮助开发者选择更合适的调试工具，提升问题定位效率。阅读详情

我最近开发的一个Release程序总是退出，后来在输出的时候生成pdb文件以及其调试文件，

我自己触发的一个异常，能够通过windbg找到错误代码的位置，但是将程序发布到客户机器上产生的异常文件，dmp文件，再拷贝到开发机器上，跟踪的时候，总是提示找不到相关的模块，
以下是分析的结果，哪位可以看出错误的位置？
.............................................................
This dump file has an exception of interest stored in it.
The stored exception information can be accessed via .ecxr.
(8a4.734): Access violation - code c0000005 (first/second chance not available)
*** WARNING: Unable to verify timestamp for ntdll.dll
*** ERROR: Module load completed but symbols could not be loaded for ntdll.dll
eax=012e0000 ebx=0018ecb0 ecx=00000007 edx=7c95845c esi=0018ec88 edi=0018ece0
eip=7c95845c esp=0012e8d8 ebp=0012e8e8 iopl=0 nv up ei pl zr na pe nc
cs=001b ss=0023 ds=0023 es=0023 fs=003b gs=0000 efl=00000246
ntdll+0x2845c:
7c95845c c3 ret
0:000> !analyze -v
*******************************************************************************
* *
* Exception Analysis *
* *
*******************************************************************************

***** OS symbols are WRONG. Please fix symbols to do analysis.

Unable to load image C:\WINDOWS\system32\kernel32.dll, Win32 error 0n2
*** WARNING: Unable to verify timestamp for kernel32.dll
*** ERROR: Module load completed but symbols could not be loaded for kernel32.dll
Unable to load image C:\WINDOWS\system32\ole32.dll, Win32 error 0n2
*** WARNING: Unable to verify timestamp for ole32.dll
*** ERROR: Module load completed but symbols could not be loaded for ole32.dll
*** WARNING: Unable to verify timestamp for comsvcs.dll
*** ERROR: Module load completed but symbols could not be loaded for comsvcs.dll
Unable to load image C:\WINDOWS\system32\user32.dll, Win32 error 0n2
*** WARNING: Unable to verify timestamp for user32.dll
*** ERROR: Module load completed but symbols could not be loaded for user32.dll
*** WARNING: Unable to verify timestamp for ComServer.exe
*** ERROR: Module load completed but symbols could not be loaded for ComServer.exe
*** WARNING: Unable to verify timestamp for winmm.dll
*** ERROR: Module load completed but symbols could not be loaded for winmm.dll
Unable to load image C:\WINDOWS\system32\rpcrt4.dll, Win32 error 0n2
*** WARNING: Unable to verify timestamp for rpcrt4.dll
*** ERROR: Module load completed but symbols could not be loaded for rpcrt4.dll

FAULTING_IP:
mfc42+27502
75507502 ?? ???

EXCEPTION_RECORD: ffffffff -- (.exr 0xffffffffffffffff)
ExceptionAddress: 75507502 (mfc42+0x00027502)
ExceptionCode: c0000005 (Access violation)
ExceptionFlags: 00000000
NumberParameters: 2
Parameter[0]: 00000000
Parameter[1]: 00000001
Attempt to read from address 00000001

DEFAULT_BUCKET_ID: WRONG_SYMBOLS

PROCESS_NAME: ComServer.exe

ADDITIONAL_DEBUG_TEXT:
You can run '.symfix; .reload' to try to fix the symbol path and load symbols.

MODULE_NAME: mfc42

FAULTING_MODULE: 7c930000 ntdll

DEBUG_FLR_IMAGE_TIMESTAMP: 4d79d59a

ERROR_CODE: (NTSTATUS) 0xc0000005 - "0x%08lx"

EXCEPTION_CODE: (NTSTATUS) 0xc0000005 - "0x%08lx"

EXCEPTION_PARAMETER1: 00000000

EXCEPTION_PARAMETER2: 00000001

READ_ADDRESS: 00000001

FOLLOWUP_IP:
mfc42+27502
75507502 ?? ???

FAILED_INSTRUCTION_ADDRESS:
mfc42+27502
75507502 ?? ???

APP: comserver.exe

PRIMARY_PROBLEM_CLASS: WRONG_SYMBOLS

BUGCHECK_STR: APPLICATION_FAULT_WRONG_SYMBOLS

LAST_CONTROL_TRANSFER: from 00000000 to 75507502

STACK_TEXT:
0012f92c 00000000 7c82bf97 0012f9a0 755e1a10 mfc42+0x27502

STACK_COMMAND: ~0s; .ecxr ; kb

SYMBOL_STACK_INDEX: 0

SYMBOL_NAME: mfc42+27502

FOLLOWUP_NAME: MachineOwner

IMAGE_NAME: mfc42.dll

BUCKET_ID: WRONG_SYMBOLS

FAILURE_BUCKET_ID: WRONG_SYMBOLS_c0000005_mfc42.dll!Unknown

WATSON_STAGEONE_URL: http://watson.microsoft.com/StageOne/ComServer_exe/1_0_0_1/51cbf2f6/mfc42_dll/6_6_8064_0/4d79d59a/c0000005/00027502.htm?Retriage=1

Followup: MachineOwner
---------

...全文

ArcGIS-裁剪遥感影像及dem图像 6、选择【工具箱】-【数据管理工具】-【栅格】-【裁剪】。在【输入栅格】里选择要裁剪的dem，在【输出范围】里选择刚创建的裁剪范围。选择一个输出路径，其他参数保存默认。2、起一个名称，要素类型选择【面】。点击【编辑】选择与要裁剪的dem一致的地理坐标系。1、创建需要裁剪区域的面层shp，右击选择【新建】-【shapefile】3、点击编辑器，选择开始编辑。4、选择【裁剪范围】，点击确定。5、画出想要裁剪的范围并保存。阅读详情

ponydph

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切换为时间正序

ponydph 2013-07-08

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多谢。。。。。

BeanJoy 2013-07-05

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使用windbg调试时，需要注意的是pdb的版本与产生dump的exe或dll版本必须一致（保证是同一时间编译后生成的）。有时候只加载自己的pdb还看不出问题所在，需要加载微软的pdb：在symbols输入框里，除了自己pdb的路径外，还应输入“srv*sym*http://msdl.microsoft.com/download/symbols”，自动加载系统模块所需的dll。输入pdb路径后，最好再用命令reload -f强制加载pdb。另外，一般不通过命令行来分析，因为windbg有各种窗口。我一般打开进程窗口、堆栈窗口和源代码窗口进行分析。

ponydph 2013-07-05

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看不懂。。。？

赵4老师 2013-06-28

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有时不写日志到文件中是无论如何也发现不了问题在哪里的，包括捕获各种异常、写日志到屏幕、单步或设断点或生成core文件、……这些方法都不行！写日志到文件参考下面：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
    #include <windows.h>
    #include <io.h>
#else
    #include <unistd.h>
    #include <sys/time.h>
    #include <pthread.h>
    #define  CRITICAL_SECTION   pthread_mutex_t
    #define  _vsnprintf         vsnprintf
#endif
//Log{
#define MAXLOGSIZE 20000000
#define MAXLINSIZE 16000
#include <time.h>
#include <sys/timeb.h>
#include <stdarg.h>
char logfilename1[]="MyLog1.log";
char logfilename2[]="MyLog2.log";
static char logstr[MAXLINSIZE+1];
char datestr[16];
char timestr[16];
char mss[4];
CRITICAL_SECTION cs_log;
FILE *flog;
#ifdef WIN32
void Lock(CRITICAL_SECTION *l) {
    EnterCriticalSection(l);
}
void Unlock(CRITICAL_SECTION *l) {
    LeaveCriticalSection(l);
}
#else
void Lock(CRITICAL_SECTION *l) {
    pthread_mutex_lock(l);
}
void Unlock(CRITICAL_SECTION *l) {
    pthread_mutex_unlock(l);
}
#endif
void LogV(const char *pszFmt,va_list argp) {
    struct tm *now;
    struct timeb tb;

    if (NULL==pszFmt||0==pszFmt[0]) return;
    _vsnprintf(logstr,MAXLINSIZE,pszFmt,argp);
    ftime(&tb);
    now=localtime(&tb.time);
    sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday);
    sprintf(timestr,"%02d:%02d:%02d",now->tm_hour     ,now->tm_min  ,now->tm_sec );
    sprintf(mss,"%03d",tb.millitm);
    printf("%s %s.%s %s",datestr,timestr,mss,logstr);
    flog=fopen(logfilename1,"a");
    if (NULL!=flog) {
        fprintf(flog,"%s %s.%s %s",datestr,timestr,mss,logstr);
        if (ftell(flog)>MAXLOGSIZE) {
            fclose(flog);
            if (rename(logfilename1,logfilename2)) {
                remove(logfilename2);
                rename(logfilename1,logfilename2);
            }
        } else {
            fclose(flog);
        }
    }
}
void Log(const char *pszFmt,...) {
    va_list argp;

    Lock(&cs_log);
    va_start(argp,pszFmt);
    LogV(pszFmt,argp);
    va_end(argp);
    Unlock(&cs_log);
}
//Log}
int main(int argc,char * argv[]) {
    int i;
#ifdef WIN32
    InitializeCriticalSection(&cs_log);
#else
    pthread_mutex_init(&cs_log,NULL);
#endif
    for (i=0;i<10000;i++) {
        Log("This is a Log %04d from FILE:%s LINE:%d\n",i, __FILE__, __LINE__);
    }
#ifdef WIN32
    DeleteCriticalSection(&cs_log);
#else
    pthread_mutex_destroy(&cs_log);
#endif
    return 0;
}
//1-78行添加到你带main的.c或.cpp的那个文件的最前面
//81-85行添加到你的main函数开头
//89-93行添加到你的main函数结束前
//在要写LOG的地方仿照第87行的写法写LOG到文件MyLog1.log中

例如

//循环向a函数每次发送200个字节长度（这个是固定的）的buffer,
//a函数中需要将循环传进来的buffer，组成240字节（也是固定的）的新buffer进行处理，
//在处理的时候每次从新buffer中取两个字节打印
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <windows.h>
#include <process.h>
#include <io.h>
//Log{
#define MAXLOGSIZE 20000000
#define MAXLINSIZE 16000
#include <time.h>
#include <sys/timeb.h>
#include <stdarg.h>
char logfilename1[]="MyLog1.log";
char logfilename2[]="MyLog2.log";
static char logstr[MAXLINSIZE+1];
char datestr[16];
char timestr[16];
char mss[4];
CRITICAL_SECTION cs_log;
FILE *flog;
void Lock(CRITICAL_SECTION *l) {
    EnterCriticalSection(l);
}
void Unlock(CRITICAL_SECTION *l) {
    LeaveCriticalSection(l);
}
void LogV(const char *pszFmt,va_list argp) {
    struct tm *now;
    struct timeb tb;

    if (NULL==pszFmt||0==pszFmt[0]) return;
    _vsnprintf(logstr,MAXLINSIZE,pszFmt,argp);
    ftime(&tb);
    now=localtime(&tb.time);
    sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday);
    sprintf(timestr,"%02d:%02d:%02d",now->tm_hour     ,now->tm_min  ,now->tm_sec );
    sprintf(mss,"%03d",tb.millitm);
    printf("%s %s.%s %s",datestr,timestr,mss,logstr);
    flog=fopen(logfilename1,"a");
    if (NULL!=flog) {
        fprintf(flog,"%s %s.%s %s",datestr,timestr,mss,logstr);
        if (ftell(flog)>MAXLOGSIZE) {
            fclose(flog);
            if (rename(logfilename1,logfilename2)) {
                remove(logfilename2);
                rename(logfilename1,logfilename2);
            }
        } else {
            fclose(flog);
        }
    }
}
void Log(const char *pszFmt,...) {
    va_list argp;

    Lock(&cs_log);
    va_start(argp,pszFmt);
    LogV(pszFmt,argp);
    va_end(argp);
    Unlock(&cs_log);
}
//Log}
#define ASIZE    200
#define BSIZE    240
#define CSIZE      2
char Abuf[ASIZE];
char Cbuf[CSIZE];
CRITICAL_SECTION cs_HEX ;
CRITICAL_SECTION cs_BBB ;
struct FIFO_BUFFER {
    int  head;
    int  tail;
    int  size;
    char data[BSIZE];
} BBB;
int No_Loop=0;
void HexDump(int cn,char *buf,int len) {
    int i,j,k;
    char binstr[80];

    Lock(&cs_HEX);
    for (i=0;i<len;i++) {
        if (0==(i%16)) {
            sprintf(binstr,"%03d %04x -",cn,i);
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        } else if (15==(i%16)) {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
            sprintf(binstr,"%s  ",binstr);
            for (j=i-15;j<=i;j++) {
                sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
            }
            Log("%s\n",binstr);
        } else {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        }
    }
    if (0!=(i%16)) {
        k=16-(i%16);
        for (j=0;j<k;j++) {
            sprintf(binstr,"%s   ",binstr);
        }
        sprintf(binstr,"%s  ",binstr);
        k=16-k;
        for (j=i-k;j<i;j++) {
            sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
        }
        Log("%s\n",binstr);
    }
    Unlock(&cs_HEX);
}
int GetFromRBuf(int cn,CRITICAL_SECTION *cs,FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    lent=0;
    Lock(cs);
    if (fbuf->size>=len) {
        lent=len;
        if (fbuf->head+lent>BSIZE) {
            len1=BSIZE-fbuf->head;
            memcpy(buf     ,fbuf->data+fbuf->head,len1);
            len2=lent-len1;
            memcpy(buf+len1,fbuf->data           ,len2);
            fbuf->head=len2;
        } else {
            memcpy(buf     ,fbuf->data+fbuf->head,lent);
            fbuf->head+=lent;
        }
        fbuf->size-=lent;
    }
    Unlock(cs);
    return lent;
}
void thdB(void *pcn) {
    char        *recv_buf;
    int          recv_nbytes;
    int          cn;
    int          wc;
    int          pb;

    cn=(int)pcn;
    Log("%03d thdB              thread begin...\n",cn);
    while (1) {
        Sleep(10);
        recv_buf=(char *)Cbuf;
        recv_nbytes=CSIZE;
        wc=0;
        while (1) {
            pb=GetFromRBuf(cn,&cs_BBB,&BBB,recv_buf,recv_nbytes);
            if (pb) {
                Log("%03d recv %d bytes\n",cn,pb);
                HexDump(cn,recv_buf,pb);
                Sleep(1);
            } else {
                Sleep(1000);
            }
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
}
int PutToRBuf(int cn,CRITICAL_SECTION *cs,FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    Lock(cs);
    lent=len;
    if (fbuf->size+lent>BSIZE) {
        lent=BSIZE-fbuf->size;
    }
    if (fbuf->tail+lent>BSIZE) {
        len1=BSIZE-fbuf->tail;
        memcpy(fbuf->data+fbuf->tail,buf     ,len1);
        len2=lent-len1;
        memcpy(fbuf->data           ,buf+len1,len2);
        fbuf->tail=len2;
    } else {
        memcpy(fbuf->data+fbuf->tail,buf     ,lent);
        fbuf->tail+=lent;
    }
    fbuf->size+=lent;
    Unlock(cs);
    return lent;
}
void thdA(void *pcn) {
    char        *send_buf;
    int          send_nbytes;
    int          cn;
    int          wc;
    int           a;
    int          pa;

    cn=(int)pcn;
    Log("%03d thdA              thread begin...\n",cn);
    a=0;
    while (1) {
        Sleep(100);
        memset(Abuf,a,ASIZE);
        a=(a+1)%256;
        if (16==a) {No_Loop=1;break;}//去掉这句可以让程序一直循环直到按Ctrl+C或Ctrl+Break或当前目录下存在文件No_Loop
        send_buf=(char *)Abuf;
        send_nbytes=ASIZE;
        Log("%03d sending %d bytes\n",cn,send_nbytes);
        HexDump(cn,send_buf,send_nbytes);
        wc=0;
        while (1) {
            pa=PutToRBuf(cn,&cs_BBB,&BBB,send_buf,send_nbytes);
            Log("%03d sent %d bytes\n",cn,pa);
            HexDump(cn,send_buf,pa);
            send_buf+=pa;
            send_nbytes-=pa;
            if (send_nbytes<=0) break;//
            Sleep(1000);
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
}
int main() {
    InitializeCriticalSection(&cs_log );
    Log("Start===========================================================\n");
    InitializeCriticalSection(&cs_HEX );
    InitializeCriticalSection(&cs_BBB );

    BBB.head=0;
    BBB.tail=0;
    BBB.size=0;

    _beginthread((void(__cdecl *)(void *))thdA,0,(void *)1);
    _beginthread((void(__cdecl *)(void *))thdB,0,(void *)2);

    if (!access("No_Loop",0)) {
        remove("No_Loop");
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    while (1) {
        Sleep(1000);
        if (No_Loop) break;//
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    Sleep(3000);
    DeleteCriticalSection(&cs_BBB );
    DeleteCriticalSection(&cs_HEX );
    Log("End=============================================================\n");
    DeleteCriticalSection(&cs_log );
    return 0;
}

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用过windbg工具的请进来，指点一下？

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