EPrivilege 的 Exception 是如何發生的呢? |
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dllee
站務副站長   發表：321 回覆：2519 積分：1711 註冊：2002-04-15 發送簡訊給我 |
最近在測試程式時，發生一個以前沒有遇到過的 Exception, Exception! ClassName=EPrivilege, Message=EPrivilege 查了一下 BCB 的 Online Help，
EPrivilege is the exception class for processor privilege violations. Unit sysutils Description EPrivilege is thrown when an application tries to execute a processor instruction that is invalid for the current processor privilege level. As a descendant of EExternal, EPrivilege saves the Windows exception record (if there is one) in its ExceptionRecord data structure.對我而言，實在是很難想像，原本都可以 RUN 的 CODE ，現在會出現此 Exception?! 處理器是有什麼優先權的指令嗎? 我們在寫程式時要如何避免呢? 沒空更新的網頁... http://dllee.ktop.com.tw C及指標教學,計算機概論,資訊管理導論... http://dllee.adsldns.org 介紹Shells,LiteStep,GeoShell....
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dllee
站務副站長 發表：321 回覆：2519 積分：1711 註冊：2002-04-15 發送簡訊給我 |
老問題又發生了
 還是不知道原因也不知道如何解決 EPrivilege 的 Exception!!!找到幾篇相關的問題有人回應的網路文章： http://www.tek-tips.com/viewthread.cfm?qid=497533
Hallo. I have a piece of code that has been working fine - like a dream, in fact. I was very pleased. All of a sudden, after a couple of totally unrelated alterations to another class, I start getting EPrivilege & sometimes EStackOverflow exceptions. I cannot for the life of me figure out why! Has anyone else out there come accross something similar? & found a workaround, or something? PLEASE lemme know if you have! Cheers, Douglas J Livesey
months ago i had the same problem than you, so i solve it changing the place where I declare the variables. I don't know why but 2 variables were using the same memory position. Check it with the debugger. In a moment I'll tell you how to know if this happen ----------------------- ok, sorry for too late when you declare 2 variables for example int X int Y will take diferent memory position if you declare the same variables but in diferente order (I don't know why) int Y // you can add code here if you want another block int X but how to know what memory block are this values? when u are debugging your aplicattion open the evaluate and Modify window (pressing ctrl F7) ther u can check teh memory position and its values. ======================= http://topic.csdn.net/t/20030514/08/1780192.htm 5 楼sun_is_shining（流云）回复于 2003-05-14 19:47:23 得分 0说详细一点，就是线程优先级不够（我的理解），某些特殊的指令不能运行(out dx al)。也就是有没有办法在win2000profession版下编程修改程序的优先级------ dllee: 可是我在程式中沒用到 Out 的組語, 如果是 VCL 用到, 那... 我也不知道是那個用到??? ======================= 找到好多是看不懂的文字  ...原本我的系統也跑了很多年了，但最近回報機台發生 Exception，回傳 Log 才發現又是 EPrivilege 的 Exception... ■ VMASK - ViewMove Automation Software Kernel ■ VMIO-Server/SECS/GEM ■ dllee's blog ■ dllee's StatPlus ■
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