0 Replies Latest reply on Dec 6, 2012 3:51 AM by mhi

    CodeAnalyst access violation


      I'm trying to use CodeAnalyst timer-based analysis on a substantial Windows application written mainly in C++. If I turn off CSS (call stack sampling), it works fine and I have already started to improve my application's performance. I'd like to use CSS, but when I turn it on, even with the stack depth reduced to 2, CodeAnalyst crashes trying to analyse the data when the sampling session ends. If I use CodeAnalyst within Visual Studio, it crashes Visual Studio. Here are some of the details. Let me know what I can do to help identify (even fix) the problem.


      Using Visual Studio 2010, CodeAnalyst 3.8.1203.1066, Windows Vista 64-bit, with a 64-bit application to test.


      Unhandled exception at 0x000007feeef18bc1 (CAK86Disasm.dll) in CodeAnalyst.exe: 0xC0000005: Access violation reading location 0x0000000004840000.


      >    CAK86Disasm.dll!CDisassembler::GetPrefixBytesString()  + 0x31 bytes   

           [Frames below may be incorrect and/or missing, no symbols loaded for CAK86Disasm.dll]   

           CAK86Disasm.dll!CDisassembler::Disassemble()  + 0x31 bytes   

           CAK86Disasm.dll!CDisassembler::Disassemble()  + 0x20 bytes   

           CAK86Disasm.dll!CK86Disasm::UIDisassemble()  + 0x7e bytes   

           ModAnalyzer.dll!CModAnalyzer::CallSiteAnalysis()  + 0x1bf bytes   

           CADataTranslation.dll!CDataTranslator::processCSSData()  + 0x573 bytes   

           CADataTranslation.dll!CDataTranslator::ThreadtranslateDataPrdFile()  + 0x48a bytes   

           CADataTranslation.dll!CDataTranslator::ThreadtranslateDataPrdFile()  + 0x1106 bytes   

           CACommon.dll!CThreadPool::threadExecute()  + 0x5b bytes   

           kernel32.dll!BaseThreadInitThunk()  + 0xd bytes   

           ntdll.dll!RtlUserThreadStart()  + 0x21 bytes


      000007FEEEF18BBD  cmp     ebx,eax
      000007FEEEF18BBF  jae     CDisassembler::GetPrefixBytesString+55h (7FEEEF18BE5h)
      000007FEEEF18BC1  cmp     byte ptr [rsi],0F0h  *** Exception address here ***
      000007FEEEF18BC4  jne     CDisassembler::GetPrefixBytesString+3Fh (7FEEEF18BCFh)
      000007FEEEF18BC6  test    dword ptr [rdi+24h],8000h


      The exception seems repeatable, but I'm afraid the application is large and closed-source, so I can't copy it here.


      Advice to avoid the problem? Or where should I send more information, who should I contact?


      Added: system information box reads...


      Vendor: AMD, Family: AMD Athlon™ 64 Processor

      Family 15 Model 15 Stepping 2

      Approximate core frequency is 2000 MHz

      Onboard local APIC detected.

      2 Processors Installed


      Computer Name: *Redacted*

      Windows Vista Version 6.0 Build 6002

      Service Pack 2



      Percentage of Memory is in use: 56

      Total physical memory: 6027512 KB

      Free physical memory: 2603788 KB

      Total size of paging file : 12264928 KB

      Free size of paging file: 7496812 KB

      Total virtual memory: 8589934464 KB

      Free virtual memory: 8589602280 KB


      Screen display: 1920 X 1080 pixels