Debugging in the (Very) Large: Ten Years of Implementation And
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Hang Analysis: Fighting Responsiveness Bugs
Hang Analysis: Fighting Responsiveness Bugs Xi Wang† Zhenyu Guo‡ Xuezheng Liu‡ Zhilei Xu† Haoxiang Lin‡ Xiaoge Wang† Zheng Zhang‡ †Tsinghua University ‡Microsoft Research Asia Abstract return to life. However, during the long wait, the user can neither Soft hang is an action that was expected to respond instantly but in- cancel the operation nor close the application. The user may have stead drives an application into a coma. While the application usu- to kill the application or even reboot the computer. ally responds eventually, users cannot issue other requests while The problem of “not responding” is widespread. In our expe- waiting. Such hang problems are widespread in productivity tools rience, hang has occurred in everyday productivity tools, such as such as desktop applications; similar issues arise in server programs office suites, web browsers and source control clients. The actions as well. Hang problems arise because the software contains block- that trigger the hang issues are often the ones that users expect to re- ing or time-consuming operations in graphical user interface (GUI) turn instantly, such as opening a file or connecting to a printer. As and other time-critical call paths that should not. shown in Figure 1(a), TortoiseSVN repository browser becomes unresponsive when a user clicks to expand a directory node of a This paper proposes HANGWIZ to find hang bugs in source code, which are difficult to eliminate before release by testing, remote source repository. The causes of “not responding” bugs may be complicated. An as they often depend on a user’s environment. HANGWIZ finds hang bugs by finding hang points: an invocation that is expected erroneous program that becomes unresponsive may contain dead- to complete quickly, such as a GUI action, but calls a blocking locks (Engler and Ashcraft 2003; Williams et al. -
Latest X64dbg Version Supports Non-English Languges Through a Generic Algorithm That May Or May Not Work Well in Your Language
x64dbg Documentation Release 0.1 x64dbg Jul 05, 2021 Contents 1 Suggested reads 1 1.1 What is x64dbg?.............................................1 1.2 Introduction...............................................1 1.3 GUI manual............................................... 15 1.4 Commands................................................ 31 1.5 Developers................................................ 125 1.6 Licenses................................................. 261 2 Indices and tables 277 i ii CHAPTER 1 Suggested reads If you came here because someone told you to read the manual, start by reading all sections of the introduction. Contents: 1.1 What is x64dbg? This is a x64/x32 debugger that is currently in active development. The debugger (currently) has three parts: • DBG • GUI • Bridge DBG is the debugging part of the debugger. It handles debugging (using TitanEngine) and will provide data for the GUI. GUI is the graphical part of the debugger. It is built on top of Qt and it provides the user interaction. Bridge is the communication library for the DBG and GUI part (and maybe in the future more parts). The bridge can be used to work on new features, without having to update the code of the other parts. 1.2 Introduction This section explains the basics of x64dbg. Make sure to fully read this! Contents: 1 x64dbg Documentation, Release 0.1 1.2.1 Features This program is currently under active development. It supports many basic and advanced features to ease debugging on Windows. Basic features • Full-featured debugging of DLL and EXE files (TitanEngine Community Edition) • 32-bit and 64-bit Windows support from Windows XP to Windows 10 • Built-in assembler (XEDParse/Keystone/asmjit) • Fast disassembler (Zydis) • C-like expression parser • Logging • Notes • Memory map view • Modules and symbols view • Source code view • Thread view • Content-sensitive register view • Call stack view • SEH view • Handles, privileges and TCP connections enumeration. -
What Is an Operating System III 2.1 Compnents II an Operating System
Page 1 of 6 What is an Operating System III 2.1 Compnents II An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function. Memory management Among other things, a multiprogramming operating system kernel must be responsible for managing all system memory which is currently in use by programs. This ensures that a program does not interfere with memory already in use by another program. Since programs time share, each program must have independent access to memory. Cooperative memory management, used by many early operating systems, assumes that all programs make voluntary use of the kernel's memory manager, and do not exceed their allocated memory. This system of memory management is almost never seen any more, since programs often contain bugs which can cause them to exceed their allocated memory. If a program fails, it may cause memory used by one or more other programs to be affected or overwritten. Malicious programs or viruses may purposefully alter another program's memory, or may affect the operation of the operating system itself. With cooperative memory management, it takes only one misbehaved program to crash the system. Memory protection enables the kernel to limit a process' access to the computer's memory. Various methods of memory protection exist, including memory segmentation and paging. All methods require some level of hardware support (such as the 80286 MMU), which doesn't exist in all computers. -
Guidelines for Designing Embedded Systems with Windows 10 Iot Enterprise
Guidelines for Designing Embedded Systems with Windows 10 IoT Enterprise Version 2.0 Published July 15, 2016 Guidelines for designing embedded systems 1 CONFIDENTIAL Contents Overview .................................................................................................................................................................................................... 4 Building a task-specific experience ............................................................................................................................................ 4 General Group Policy settings ....................................................................................................................................................... 4 Application control ................................................................................................................................................................................ 5 Application boot options ................................................................................................................................................................. 5 Auto-boot Universal Windows apps ...................................................................................................................................... 5 Auto-boot Classic Windows apps ........................................................................................................................................... 5 Limit application access with AppLocker ............................................................................................................................... -
Mac OS X: an Introduction for Support Providers
Mac OS X: An Introduction for Support Providers Course Information Purpose of Course Mac OS X is the next-generation Macintosh operating system, utilizing a highly robust UNIX core with a brand new simplified user experience. It is the first successful attempt to provide a fully-functional graphical user experience in such an implementation without requiring the user to know or understand UNIX. This course is designed to provide a theoretical foundation for support providers seeking to provide user support for Mac OS X. It assumes the student has performed this role for Mac OS 9, and seeks to ground the student in Mac OS X using Mac OS 9 terms and concepts. Author: Robert Dorsett, manager, AppleCare Product Training & Readiness. Module Length: 2 hours Audience: Phone support, Apple Solutions Experts, Service Providers. Prerequisites: Experience supporting Mac OS 9 Course map: Operating Systems 101 Mac OS 9 and Cooperative Multitasking Mac OS X: Pre-emptive Multitasking and Protected Memory. Mac OS X: Symmetric Multiprocessing Components of Mac OS X The Layered Approach Darwin Core Services Graphics Services Application Environments Aqua Useful Mac OS X Jargon Bundles Frameworks Umbrella Frameworks Mac OS X Installation Initialization Options Installation Options Version 1.0 Copyright © 2001 by Apple Computer, Inc. All Rights Reserved. 1 Startup Keys Mac OS X Setup Assistant Mac OS 9 and Classic Standard Directory Names Quick Answers: Where do my __________ go? More Directory Names A Word on Paths Security UNIX and security Multiple user implementation Root Old Stuff in New Terms INITs in Mac OS X Fonts FKEYs Printing from Mac OS X Disk First Aid and Drive Setup Startup Items Mac OS 9 Control Panels and Functionality mapped to Mac OS X New Stuff to Check Out Review Questions Review Answers Further Reading Change history: 3/19/01: Removed comment about UFS volumes not being selectable by Startup Disk. -
Intel® Inspector 2020 Update 2 Release Notes Intel® Inspector 2020 Update 2 to Learn More About This Product, See
Intel® Inspector 2020 Update 2 Release Notes 16 July 2020 Intel® Inspector 2020 Update 2 Customer Support For technical support, including answers to questions not addressed in this product, visit the technical support forum, FAQs, and other support information at: • https://software.intel.com/en-us/inspector/support/ • http://www.intel.com/software/products/support/ • https://software.intel.com/en-us/inspector Please remember to register your product at https://registrationcenter.intel.com/ by providing your email address. Registration entitles you to free technical support, product updates and upgrades for the duration of the support term. It also helps Intel recognize you as a valued customer in the support forum. NOTE: If your distributor provides technical support for this product, please contact them for support rather than Intel. Contents 1 Introduction 2 2 What’s New 3 3 System Requirements 3 4 Where to Find the Release 5 5 Installation Notes 5 6 Known Issues 7 7 Attributions 13 8 Legal Information 13 1 Introduction Intel® Inspector helps developers identify and resolve memory and threading correctness issues in their C, C++ and Fortran applications on Windows* and Linux*. Additionally, on Windows platforms, the tool allows the analysis of the unmanaged portion of mixed managed and unmanaged programs and identifies threading correctness issues in managed .NET C# applications. Intel Inspector is a dynamic error checking tool for developing multithreaded applications on Windows or Linux operating systems. Intel Inspector maximizes code quality and reliability by quickly detecting memory, threading, and source code security errors during the development cycle. You can also use the Intel Inspector to visualize and manage Static Analysis results created by Intel® compilers in various suite products. -
Demarinis Kent Williams-King Di Jin Rodrigo Fonseca Vasileios P
sysfilter: Automated System Call Filtering for Commodity Software Nicholas DeMarinis Kent Williams-King Di Jin Rodrigo Fonseca Vasileios P. Kemerlis Department of Computer Science Brown University Abstract This constant stream of additional functionality integrated Modern OSes provide a rich set of services to applications, into modern applications, i.e., feature creep, not only has primarily accessible via the system call API, to support the dire effects in terms of security and protection [1, 71], but ever growing functionality of contemporary software. How- also necessitates a rich set of OS services: applications need ever, despite the fact that applications require access to part of to interact with the OS kernel—and, primarily, they do so the system call API (to function properly), OS kernels allow via the system call (syscall) API [52]—in order to perform full and unrestricted use of the entire system call set. This not useful tasks, such as acquiring or releasing memory, spawning only violates the principle of least privilege, but also enables and terminating additional processes and execution threads, attackers to utilize extra OS services, after seizing control communicating with other programs on the same or remote of vulnerable applications, or escalate privileges further via hosts, interacting with the filesystem, and performing I/O and exploiting vulnerabilities in less-stressed kernel interfaces. process introspection. To tackle this problem, we present sysfilter: a binary Indicatively, at the time of writing, the Linux -
VSI Openvms Version 8.4-1H1 Installation and Upgrade Manual
VSI OpenVMS Version 8.4-1H1 Installation and Upgrade Manual VSI OpenVMS Version 8.4-1H1 Installation and Upgrade Manual: Software Version: VSI OpenVMS Version 8.4-1H1 for HP Integrity Servers Publication date 5-May-2015 - Release Version 1.0 Copyright © 2015 VMS Software, Inc., (VSI), Bolton Massachusetts, USA Legal Notice Confidential computer software. Valid license from VSI required for possession, use or copying. Consistent with FAR 12.211 and 12.212, Commercial Computer Software, Computer Software Documentation, and Technical Data for Commercial Items are licensed to the U.S. Government under vendor's standard commercial license. The information contained herein is subject to change without notice. The only warranties for VSI products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. VSI shall not be liable for technical or editorial errors or omissions contained herein. HP, HP Integrity, HP Alpha, Proliant and Superdome are trademarks or registered trademarks of Hewlett Packard Development Company, L.P. Intel, Itanium and IA64 are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Java, the coffee cup logo, and all Java based marks are trademarks or registered trademarks of Oracle Corporation in the United States or other countries. Kerberos is a trademark of the Massachusetts Institute of Technology. Microsoft, Windows, Windows-NT and Microsoft XP are U.S. registered trademarks of Microsoft Corporation. Microsoft Vista is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries. -
Building Custom Applications on MMA9550L/MMA9551L By: Fengyi Li Applications Engineer
Freescale Semiconductor Document Number: AN4129 Application Note Rev. 0, 01/2012 Building Custom Applications on MMA9550L/MMA9551L by: Fengyi Li Applications Engineer 1Introduction Contents 1 Introduction . 1 The Freescale MMA955xL Xtrinsic family of devices 2 Architecture . 2 are high-precision, intelligent accelerometers built on the 2.1 Top-level diagram . 2 2.2 Memory space. 3 Freescale ColdFire version 1 core. 3 Tools to build custom projects . 6 3.1 MMA955xL template . 6 The MMA955xL family’s microcontroller core enables 3.2 Sensor Toolbox kit. 29 the development of custom applications in the built-in 3.3 MMA955xL reference manuals . 33 4 Template contents . 34 FLASH memory. Programming and debugging tasks are 4.1 Custom applications on the Freescale platform . 34 supported by Freescale’s CodeWarrior Development 4.2 Define RAM memory for custom applications . 36 Studio for Microcontrollers (Eclipse based IDE). 4.3 Set the custom application run rate. 38 4.4 Access accelerometer data . 39 4.5 Gesture functions . 40 The MMA9550L/MMA9551L firmware platform is 4.6 Stream data to FIFO . 43 specifically designed to ease custom application 4.7 Stream events to FIFO . 46 integration. Building custom applications on the built-in 5 Summary . 48 firmware platform provides an organized and more code-efficient sensing system to monitor development tasks, which reduces the application development cycle. This document introduces the code architecture required for creating a custom application, the instructions for binding it with the Freescale firmware platform, and the available tools that support the custom application development on the MMA955xL family of devices. © 2012 Freescale Semiconductor, Inc. -
Copyrighted Material
Index Numerics Address Resolution Protocol (ARP), 1052–1053 admin password, SOHO network, 16-bit Windows applications, 771–776, 985, 1011–1012 900, 902 Administrative Tools window, 1081–1083, 32-bit (x86) architecture, 124, 562, 769 1175–1176 64-bit (x64) architecture, 124, 562, 770–771 administrative tools, Windows, 610 administrator account, 1169–1170 A Administrators group, 1171 ADSL (Asynchronous Digital Subscriber Absolute Software LoJack feature, 206 Line), 1120 AC (alternating current), 40 Advanced Attributes window, NTFS AC adapters, 311–312, 461, 468–469 partitions, 692 Accelerated Graphics Port (AGP), 58 Advanced Computing Environment (ACE) accelerated video cards (graphics initiative, 724 accelerator cards), 388 Advanced Confi guration and Power access points, wireless, 996, 1121 Interface (ACPI) standard, 465 access time, hard drive, 226 Advanced Graphics Port (AGP) card, access tokens, 1146–1147 391–392 Account Operators group, 1172 Advanced Graphics Port (AGP) port, 105 ACE (Advanced Computing Environment) Advanced Host Controller Interface (AHCI), initiative, 724 212–213 ACPI (Advanced Confi guration and Power Advanced Micro Devices (AMD), 141–144 Interface) standard, 465 Advanced Packaging Tool (APT), 572 Action Center, 1191–1192 Advanced Power Management (APM) Active Directory Database, 1145–1146, 1183 standard, 465 active heat sink, 150 Advanced Programmable Interrupt active matrix display, LCD (thin-fi lm Controller (APIC), 374 transistor (TFT) display), 470 Advanced RISC Computing Specifi cation active partition, 267, -
State of the Art :: Desktop Wallpapers
State of the Art :: Desktop Wallpapers William Jon McCann 2008-05-29 About this Series About this Article Each article in this series will observe an aspect of design In this article we will observe the desktop wallpapers in contemporary graphical operating system products. (backgrounds) that are included by default in a selection of The intention is for these observations to serve as a well known products. baseline for discussion and facilitate consideration of the relationships between products. It is specifically not the aim of this series to provide analysis or make recommendations for action directly. Microsoft® Windows Windows ® XP – October 2001 Wallpapers Ascent Autumn Azul Bliss Crystal Follow Friend Home Moon Flower Power Purple Flower Radiance Red moon desert Ripple Stonehenge Tulips Vortec Space Wind Windows XP Notes: Location C:\WINDOWS\Web\Wallpaper Format JPEG, BMP Dimensions 800 × 600 License Proprietary Sources and Methods ● http://www.vanityfair.com/ontheweb/features/2007/02/autumn200702?printable=true¤tPage=all ● http://en.wikipedia.org/wiki/Bliss_(image) Windows Vista ® – January 2007 Windows Wallpapers Black and White img1 img2 img3 img4 ©Peter deLory ©Nicholas Veasey ©Jean-Francois Gate ©Alan Kearney The Image Bank Photographer's Choice Stone Taxi Getty Images Getty Images Getty Images Getty Images Light Auras img25 img26 img27 img28 img29 ©Microsoft 2006 ©Microsoft 2006 ©Microsoft 2006 ©Microsoft 2006 ©Microsoft 2006 Paintings img12 img13 img14 img15 ©Corbis ©Corbis ©Corbis ©Corbis Textures img8 img9 img5 img6 img7 ©Microsoft 2006 ©Chuck Kuhn Photography ©Microsoft Corp ©Microsoft Corp ©Darrell Gulin/Corbis The Image Bank Getty Images img10 img11 ©Rosemary Calvert ©Dana Menussi Stone Stone+ Getty Images Getty Images Vistas i i mg16 mg17 img18 img19 img20 ©Walter Bibikow ©Dr. -
Challenges and Issues of Mining Crash Reports
Challenges and Issues of Mining Crash Reports Le An, Foutse Khomh SWAT, Polytechnique Montreal,´ Quebec,´ Canada fle.an, [email protected] Abstract—Automatic crash reporting tools built in many soft- In the rest of this paper, we describe the structure of a ware systems allow software practitioners to understand the crash report before presenting some analytic techniques to origin of field crashes and help them prioritise field crashes mine implicit information from crash reports. For each of the or bugs, locate erroneous files, and/or predict bugs and crash occurrences in subsequent versions of the software systems. In techniques, we discuss its challenges and issues. After giving this paper, after illustrating the structure of crash reports in an overview of the related work, we conclude the paper with Mozilla, we discuss some techniques for mining information from suggestions for future studies. crash reports, and highlight the challenges and issues of these techniques. Our aim is to raise the awareness of the research II. STRUCTURE OF CRASH REPORTS community about issues that may bias research results obtained In this section, we take crash reports from Mozilla Socorro from crash reports and provide some guidelines to address certain server (Mozilla’s crash collecting database) [4] as an example challenges related to mining crash reports. Index Terms—Crash report, bug report, mining software to describe the typical crash collecting system. repositories. Mozilla delivers its applications with a built-in automatic crash reporting tool: Mozilla Crash Reporter, which sends a crash report to the Mozilla Socorro server, once end users I. INTRODUCTION encounter an unexpected halt of the application.