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  • Is there a way to display navmesh agent path in Unity?

    - by Antoine Guillien
    I'm currently making a prototype for a game I plan to develop. As far as I did, I managed to set up the navigation mesh and my navmeshagents. I would like to display the path they are following when setDestination() is fired. I did some researches but didn't find anything about it. EDIT 1 : So I instantiate an empty object with a LineRenderer and I have a line bewteen my agent and the destination. Still I've not all the points when the path has to avoid an obstacle. Furthermore, I wonder if the agent.path does reflect the real path that the agent take as I noticed that it actually follow a "smoothier" path. Here is the code so far : GameObject container = new GameObject(); container.transform.parent = agent.gameObject.transform; LineRenderer ligne = container.AddComponent<LineRenderer>(); ligne.SetColors(Color.white,Color.white); ligne.SetWidth(0.1f,0.1f); //Get def material ligne.gameObject.renderer.material.color = Color.white; ligne.gameObject.renderer.material.shader = Shader.Find("Sprites/Default"); ligne.gameObject.AddComponent<LineScript>(); ligne.SetVertexCount(agent.path.corners.Length+1); int i = 0; foreach(Vector3 v in p.corners) { ligne.SetPosition(i,v); //Debug.Log("position agent"+g.transform.position); //Debug.Log("position corner = "+v); i++; } ligne.SetPosition(p.corners.Length,agent.destination); ligne.gameObject.tag = "ligne"; So How can I get the real coordinates my agent is going to walk throught ?

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  • Flash player stops working in Firefox

    - by Alin
    First of all please be merciful as I am a 2 days ubuntu user. I've only used Windows OSs before. Hardware configuration -Quad Core Q6600 CPU -4 GB RAM -Geforce 8800GT 512 MB RAM -Seagate 320GB Harddisk I installed ubuntu x64 and everything went smooth. I had Adoble flash player installed from Ubuntu Software Center. The problem is that the flash videos on youtube (basically on all pages) looked pixelate. I use Firefox 3.6 that came with ubuntu by default. After reading around here I saw something about overriding hardware acceleration but that didn't work either. Or maybe I just didn't do it correctly. The problem was that if I opened 2-3 youtube tabs, when closing one of them, in 95% of the cases, the flash plugin would crash in remaining tabs and a black screen was instead of the video. After doing some more search I discovered the FlashAid extension for Firefox. I installed it and it made an update of flash plugin. Now the videos look good but now each time I watch a video, when switching to another one the flash plugin crashes and I can see insead of the vide the firefox message with Plugin has crasshed, refresh the page. Basically this is what I miss to have a complete pleasant ubuntu experience. Any ideas how to fix this? Thank you

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  • Retrieve the full ASP.NET Form Buffer as a String

    - by Rick Strahl
    Did it again today: For logging purposes I needed to capture the full Request.Form data as a string and while it’s pretty easy to retrieve the buffer it always takes me a few minutes to remember how to do it. So I finally wrote a small helper function to accomplish this since this comes up rather frequently especially in debugging scenarios or in the immediate window. Here’s the quick function to get the form buffer as string: /// <summary> /// Returns the content of the POST buffer as string /// </summary> /// <returns></returns> public static string FormBufferToString() { HttpRequest Request = HttpContext.Current.Request; if (Request.TotalBytes > 0) return Encoding.Default.GetString(Request.BinaryRead(Request.TotalBytes)); return string.Empty; } Clearly a simple task, but handy to have in your library for reuse. You probably don’t want to call this if you have a massive inbound form buffer, or if the data you’re retrieving is binary. It’s probably a good idea to check the inbound content type before calling this function with something like this: var formBuffer = string.Empty; if (Request.ContentType.StartsWith("text/") || Request.ContentType == "application/x-www-form-urlencoded") ) { formBuffer = FormBufferToString(); } to ensure you’re working only on content types you can actually view as text. Now if I can only remember the name of this function in my library – it’s part of the static WebUtils class in the West Wind Web Toolkit if you want to check out a number of other useful Web helper functions.© Rick Strahl, West Wind Technologies, 2005-2011Posted in ASP.NET  

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  • What are the advantages of Maven when it comes to single man, educational projects

    - by Leron
    I've spend a few hours playing around with Maven + reading some stuff on the apache official site and also a few random googled articles. By this I mean that I really tried to find the answers myself - both by reading and by doing things on my own. Also maybe worth to mention that I installed the m2e plugin so most of the time I've tried things out from Eclipse and not using the command line too much. However aside from the generated project that for example prevent me from using the default package I didn't see that much of a difference with the standard way I've created my projects before try Maven. In fact I've almost decided to skip Maven for now and move on to the other technology I wanted to learn more in-depth - Hibernate, but when I start with opening the official page the first thing I've read was the recommendation to use Hibernate with Maven. That get me confused and made me taking a step back and trying once more to find what I'm obviously missing right now. As it's said in the maven.apache.. site, the true strength of Maven is shown when you work on large projects with other people, but I lack the option to see how Maven is really used in this scenario, still i think that there are maybe advantages even when it comes to working with small projects alone, but I really have difficulties to point them out. So what do you think are the advantages of Maven when it's used for small projects writing from a single person. What are the things that I should be aware of and try to exploit (I mean features offered by Maven) that can come in handy in this situations?

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  • HP DL180 G6 P410 8x SATA 1TB, what is the optimal configuration?

    - by Oneiroi
    I have a HP DL180 G6 with a P410 raid controller. Presently this runs using 4x 1TB Samsung Spinpoint SATA drives, in a RAID10 configuration using default settings. I am about to add a backplane to increase the drive capacity from 4 to 12 drives, and I plan to install 4 more 1TB SATA Drives. The drives are matched and have close serial numbers (They arrived together in the Manufacturers pallet). Model HD103UJ 1000GB/7200rpm/32M Rated for 3GB/s I will also be installing RHEL 6.1 x86_64. My question is what would be the optimal RAID settings (stripe etc.) for this configuration? To recap: 8x Model HD103UJ 1000GB/7200rpm/32M Rated for 3GB/s RAID 10 configuration. Thanks in advance. Update for role: Server is to become an iscsi target for an internal openstack deployment currently underway. (Glance) Will also provide virtualisation through KVM

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  • Creating self-signed SSL on IIS - Remote access problem

    - by ile
    I followed these instructions to create self-signed ssl: http://www.visualwin.com/SelfSSL/ (I opened SelfSSL and typed selfssl /T) When I access https: //localhost/ than it works, but when I try to access it remotely (i set up my router to port forward to localhost), for example https: //myip the page does not load. Also, I noticed one other thing. When I access localhost locally then I am asked to enter user/pass, but if I access remotely the I get the following warning: Under Construction The site you were trying to reach does not currently have a default page. It may be in the process of being upgraded and configured. ... I don't know if it is related with this but I hope someone know the answer. Thanks, Ile

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  • Ngingx wont start with fastcgi_split_path_info" error

    - by Ke
    Hi, I heard that nginx is faster and since im on a VPS with low ram i thought id try it out. I got through this tutorial http://www.howtoforge.com/installing-php-5.3-nginx-and-php-fpm-on-ubuntu-debian But I now get the following error: unknown directive "fastcgi_split_path_info" in /etc/nginx/sites-enabled/default:28 Anyone know what might be causing the problem? I cant find any reference to the problem on Google Also I have heard conflicting things about Nginx vs Apache. Some say use one, some say the other. Im using allsorts such as rewrite rules, proxies etc. Am I setting myself up for a fall by using Nginx? If I go for apache, does anyone know of anyway to tweak it so that it performs better on a low ram VPS? Cheers Ke

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  • Ngingx wont start with fastcgi_split_path_info" error

    - by Ke
    Hi, I heard that nginx is faster and since im on a VPS with low ram i thought id try it out. I got through this tutorial http://www.howtoforge.com/installing-php-5.3-nginx-and-php-fpm-on-ubuntu-debian But I now get the following error: unknown directive "fastcgi_split_path_info" in /etc/nginx/sites-enabled/default:28 Anyone know what might be causing the problem? I cant find any reference to the problem on Google Also I have heard conflicting things about Nginx vs Apache. Some say use one, some say the other. Im using allsorts such as rewrite rules, proxies etc. Am I setting myself up for a fall by using Nginx? If I go for apache, does anyone know of anyway to tweak it so that it performs better on a low ram VPS? Cheers Ke

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  • CodePlex Daily Summary for Thursday, October 10, 2013

    CodePlex Daily Summary for Thursday, October 10, 2013Popular ReleasesDynamics AX 2012 R2 Kitting: First Beta release of Kitting: First Beta release of Kitting Install by using XPO or Models.C# Intellisense for Notepad++: Release v1.0.8.0: - fixed document formatting artifacts To avoid the DLLs getting locked by OS use MSI file for the installation.CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.8.0: - fixed document formatting artifacts To avoid the DLLs getting locked by OS use MSI file for the installation.Generic Unit of Work and Repositories Framework: v2.0: Async methods for Repostiories - Ivan (@ifarkas) OData Async - Ivan (@ifarkas) Glimpse MVC4 workig with MVC5 Glimpse EF6 Northwind.Repostiory Project (layer) best practices for extending the Repositories Northwind.Services Project (layer), best practices for implementing business facade Live Demo: http://longle.azurewebsites.net/Spa/Product#/list Documentation: http://blog.longle.net/2013/10/09/upgrading-to-async-with-entity-framework-mvc-odata-asyncentitysetcontroller-kendo-ui-gli...Media Companion: Media Companion MC3.581b: Fix in place for TVDB xml issue. New* Movie - General Preferences, allow saving of ignored 'The' or 'A' to end of movie title, stored in sorttitle field. * Movie - New Way for Cropping Posters. Fixed* Movie - Rename of folders/filename. caught error message. * Movie - Fixed Bug in Save Cropped image, only saving in Pre-Frodo format if Both model selected. * Movie - Fixed Cropped image didn't take zoomed ratio into effect. * Movie - Separated Folder Renaming and File Renaming fuctions durin...Ghostscript.NET: Ghostscript.NET v.1.1.1.: v.1.1.1. fixed problem in GhostscriptRasterizer and GhostscriptViewer when MediaBox contains negative llx or lly values. (problem reported by "Prasenjit Das"). added GhostscriptPngDevice, a friendly output device class with all png devices related switches. (GhostscriptPngDevice supports: png16m, pngalpha, pnggray, png256, png16, pngmono, pngmonod). added GhostscriptJpegDevice, a friendly output device class with all jpeg devices related switches. (GhostscriptJpegDevice supports: jpeg, jp...xFunc: xFunc 2.7.3: Fixed memory leak. Small fixes.SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 1.2.0: HighlightsMulti-store support "Trusted Shops" plugins Highly improved SmartStore.biz Importer plugin Add custom HTML content to pages Performance optimization New FeaturesMulti-store-support: now multiple stores can be managed within a single application instance (e.g. for building different catalogs, brands, landing pages etc.) Added 3 new Trusted Shops plugins: Seal, Buyer Protection, Store Reviews Added Display as HTML Widget to CMS Topics (store owner now can add arbitrary HT...AD ACL Scanner: 1.3: New features:Effective rights, select a security principal and match it agains the permissions in AD. Color coded permissions based on criticality when using effective rights scan. Search levels : Base, One Level, Subtree. List you domains and select one from the list. Get the size of the security descriptor (bytes). Rerporting on disabled inheritance . Better search functianlity; you can use wildcards on Trustee. Get all inherited permissions in report.MoreTerra (Terraria World Viewer): MoreTerra 1.11.2: Release 1.11.2 Full 1.2 Support =========== =Bug Fixes= =========== We have all markers solsund made sure the tile and background colors are correct. (map looks correct with no missing pink) Added better error tracking for those having trouble.Fast YouTube Downloader: Youtube Downloader 2.1: Youtube Downloader 2.1NuGet: NuGet 2.7.1: Released October 07, 2013. Release notes: http://docs.nuget.org/docs/release-notes/nuget-2.7.1 Important note: After downloading the signed build of NuGet.exe, if you perform an update using the "nuget.exe update -self" command, it will revert back to the unsigned build.Mugen MVVM Toolkit: Mugen MVVM Toolkit 2.0: IntroductionMugen MVVM Toolkit makes it easier to develop Silverlight, WPF, WinRT and WP applications using the Model-View-ViewModel design pattern. The purpose of the toolkit is to provide a simple framework and set of tools for getting up to speed quickly with applications based on the MVVM design pattern. The core of Toolkit contains a navigation system, windows management system, models, validation, etc. Mugen MVVM Toolkit contains all the MVVM classes such as ViewModelBase, RelayCommand,...Office Ribbon Project (under active development): Ribbon (07. Oct. 2013): Fixed Scrollbar Bug if DropDown Button is bigger than screen Added Office 2013 Theme Fixed closing the Ribbon caused a null reference exception in the RibbonButton.Dispose if the DropDown was not created yet Fixed Memory leak fix (unhooked events after Dispose) Fixed ToolStrip Selected Text 2013 and 2007 for Blue and Standard themesGhostscript Studio: Ghostscript.Studio v.1.0.2: Ghostscript Studio is easy to use Ghostscript IDE, a tool that facilitates the use of the Ghostscript interpreter by providing you with a graphical interface for postscript editing and file conversions. Ghostscript Studio allows you to preview postscript files, edit the code and execute them in order to convert PDF documents and other formats. The program allows you to convert between PDF, Postscript, EPS, TIFF, JPG and PNG by using the Ghostscript.NET Processor. v.1.0.2. added custom -c s...cmdradio: v0.1.1 binary: Default download in win32. For other OS see here. This is alpha version. Please report all bugs.Squiggle - A free open source LAN Messenger: Squiggle 3.3 Alpha: Allow using environment variables in configuration file (history db connection string, download folder location, display name, group and message) Fix for history viewer to show the correct history entries History saved with UTC timestamp This is alpha release and not recommended for use in productionVidCoder: 1.5.7 Beta: Updated HandBrake core to SVN 4819. About dialog now pulls down HandBrake version from the DLL. Added a confirmation dialog to Stop if the encode has been going on for more than 5 minutes. Fixed handling of unicode characters for input and output filenames. We now encode to UTF-8 before passing to HandBrake. Fixed a crash in the queue multiple titles dialog. Added code to rescue tool windows which get placed outside of the visible screen area.Wsus Package Publisher: Release v1.3.1310.05: Enhance the "Reboot Remote Computers", by adding a timer before the reboot occure. So that remote users can save their documents and close applications. You can also add a message to be display. In 'Tools'->'Settings'-> Misc Tab, you can set a default message. Enhance the "Compare Computers against AD", by choosing OUs to include in the comparison.VG-Ripper & PG-Ripper: PG-Ripper 1.4.19: NEW: Added Option to login as Guest NEW: Added Menu Option to delete an Forum Account NEW: Added Support for "ImageTeam.org links FIXED: Fixed Ripping of http://forum.babeunion.com ForumsNew ProjectsAphid: Aphid is an embeddable, cross-platform, multi-paradigm, and highly interoperable .NET scripting language.CCSP: De online plek voor de V-ICT-OR CCSP communityCLOSED: CLOSEDCorporation Wars: Corporation WarsEntityFramework.BulkInsert: Bulk insert extension for EntityFramework 5. Can be used with Code First approach only.HelpersLib: Simple set of helper libs to aid you with DVLUP challenges or general WP improvementsID3 Algorithm: ID3 algorithm from Machine Learning field. ID3 was implemented in .NET 4.0 using WinForms and C#.Impacta - C# - módulo II: Roteiro de aula para o módulo II de C# da Impacta.InstaSharp: InstaSharp is a C# library that wraps the Instagram API and makes it easy to write applications with Instagram data.iRateMyApp: Project Title iRateMyApp Project Description This is a project for Assignment 2 of Web Scripting and Content Creation (University of Hertfordshire) The projeiRateMyApps: This is a project for Assignment 2 of Web Scripting and Content Creation (University of Hertfordshire)MapLite: Android Tile Map, fork from osmdroidMileage Demo: This is a quick tool to help keep track of your mileage and translate the results to multiple output formats.multiples3and5: Small projectNido Framework with .Net 4.0 and Entity Framework help you standardize your BLL.: Nido is a reusable generic code library developed using .NET/ C# (4.0, EF) providing a common platform (Web, Windows Form, Web Service, Services and Libraries).pgist: gist, GitHubpsi56: ??ERPSharePoint QB Rating App: QB Rating App is a SharePoint 2013 App that calculates a QB's NFL and NCAA passing efficiency ratings.TFS PS Integration Editor: TFS PS Integration Editor is a tool that manage the main functionally of "TfsAdmin ProjectServer" command line tool.Tfs Test: A test TFS project.Windows Service Manager: The Service Manager is management of “Services”, wither these services are local (instance) or remote. Features 1. Start, Stop and Restart service. Work Smart: Work Smart helps prevent computer related health issues.XcbWeiXin: haha

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  • Management Reporter Installation – Lessons Learned

    - by Ryan McBee
    After successfully completing several installations of Management Reporter this year, I wanted to share a few lessons learned that should help you. First, you will want to make sure that you install Management Reporter under a domain account as opposed to a local system or network service account. Management Reporter gives you the option to install under these accounts, but it is a be a best practice approach to use a domain account. Upon installation of Management Report, you will want to make sure that Directory Browsing is enabled within the IIS server of your site or you will have problems when you go to use Management Reporter. By default, it will be disabled in Server 2008 R2 and you will need to make the setting change under the Actions pane shown below. Lastly, you will want to make sure that SQL Server is running under a domain account. I have had multiple situations where reports have been stuck in the Queued status rather than Processing status of Management Reporter. After reviewing resolution 5 of KB 2298248, it was determined that running SQL Server under a domain account is the way to go.

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  • Bridging Network Devices with Multiple IPs

    - by Andy
    I have a small server with a single NIC that I am trying to get a bridge functioning on so that I can run KVM. On this NIC I have a couple IPs statically assigned to it: eth0 = 192.168.1.1 eth0:1 = 192.168.1.2 eth0:2 = 192.168.1.3 eth0:3 -> Assign the bridge to this I am attempting to set up a bridge using the following instructions: sudo brctl addbr br0 sudo brctl addif br0 eth0:3 sudo ifconfig br0 192.168.1.120 netmask 255.255.255.0 up sudo route add -net 192.168.1.0 netmask 255.255.255.0 br0 sudo route add default gw 192.168.1.1 br0 sudo tunctl -b -u root -t tap0 > /dev/null sudo ifconfig tap0 up sudo brctl addif br0 tap0 However, when I do the second command: sudo brctl addif br0 eth0:3 It puts the ENTIRE eth0 device into promiscuous mode. This knocks the server offline and inaccessible by anything other than locally. Is there a way to bridge JUST eth0:3 to br0 and not put the entire device into promiscuous mode?

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  • Old PCI Video Card and PCI-Express ATI Radeon HD 4200 Pro Living Together

    - by Adam Driscoll
    I have two video cards installed in a Dell Optiplex 745. The PCI card is from 2001 and I was hoping to be able to install it, allowing me to have 3 monitors. The Radeon is already running two itself. The problem is that when I boot the box with default BIOS settings the PCI card displays video to the single display but not the other two. In device manager I can see that both video cards are visible with drivers loaded correctly but underneath monitors I only have a single Generic PnP monitor from the VGA connection to the PCI card. If I switch the BIOS setting to force PCI-E I get the Radeon to display to the two other monitors. When I check device manager with this configuration I see that the PCI card displays an error saying the driver could not be started. Any ideas?

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  • How to fix sound in wolfenstein Enemy Territory

    - by GrizzLy
    I installed wolf:et, and i cant get sound to work. Everything that i have installed is in default paths, i had 10.4 and then upgraded to 10.10 via software update gui. I had sound working in 10.04 with method under 2. I have tried following killall esd; et; esd with that i get ------- sound initialization ------- /dev/adsp: No such file or directory Could not open /dev/adsp ------------------------------------ sudo -i echo "et.x86 0 0 direct" /proc/asound/card0/pcm0p/oss echo "et.x86 0 0 disable" /proc/asound/card0/pcm0c/oss exit with that i get bash: /proc/asound/card0/pcm0p/oss: No such file or directory and indeed i do not have that, i have only sub0 and sub1 in pcm0p I have tried running et with et-sdl-sound script, but with that i get this output in console http://pastebin.com/J7gRU1uh I have probably messed up sdl libraries, could not get sound to work, so downloaded new from debian package site and installed them. Tried setting SDL_AUDIODRIVER="pulse" in et-sdl-sound, looks like i am getting same error as in method 3. pasuspender -- et +set s_alsa_pcm plughw:0 gives me ------- sound initialization ------- /dev/adsp: No such file or directory Could not open /dev/adsp _------------------------------------ Misc: @Oli: i do not know if i am running pulse or esd, how can i check that?

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  • Logging Apache2 payload to evaluate SOAP message

    - by Phil
    I am trying to log webservice specific information with Apache (Apache acts as a load-balancer by use of mod_jk). For instance I want to know how long the responsetime of each webservice-call takes. To do this I definitely would need to know the name of the webservice-method in the log-file. As a matter of fact, the name of the webservice-method is wrapped in the SOAP-body, to which I have no access to with the default-configuration. Does anybody know an Apache module to extend the log-information? Or are there any other ideas to solve this challenge? Thx!

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  • PPP connection between PalmOS and Ubuntu (over ttyUSB0?) without crashy "visor" kernel module

    - by Chris Boyle
    I have a Palm Treo 680 which I'd like to use as a media remote, using Palm MPC. Almost the exact instructions on that page used to work perfectly for establishing a PPP connection over the USB cable; I think I last tried it in Ubuntu 9.04 (Jaunty). In Karmic, I find that /dev/ttyUSB{0,1} are not present by default, and when I modprobe visor to get them, the Palm immediately crashes and reboots, as seen in Ubuntu bug 522753 (it reboots again as long as the module is still loaded and USB is still connected). The usbserial module has the same result. From reading that bug and elsewhere, it appears that the visor module is abandoned, and jpilot and friends use some other approach to talk to PalmOS over USB these days, which might not even involve a ttyUSB device. My question is, therefore: How do I create a PPP connection between PalmOS and Karmic without crashing the Palm?

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  • What is the best approach for inline code comments?

    - by d1egoaz
    We are doing some refactoring to a 20 years old legacy codebase, and I'm having a discussion with my colleague about the comments format in the code (plsql, java). There is no a default format for comments, but in most cases people do something like this in the comment: // date (year, year-month, yyyy-mm-dd, dd/mm/yyyy), (author id, author name, author nickname) and comment the proposed format for future and past comments that I want is: // {yyyy-mm-dd}, unique_author_company_id, comment My colleague says that we only need the comment, and must reformat all past and future comments to this format: // comment My arguments: I say for maintenance reasons, it's important to know when and who did a change (even this information is in the SCM). The code is living, and for that reason has a history. Because without the change dates it's impossible to know when a change was introduced without open the SCM tool and search in the long object history. because the author is very important, a change of authors is more credible than a change of authory Agility reasons, no need to open and navigate through the SCM tool people would be more afraid to change something that someone did 15 years ago, than something that was recently created or changed. etc. My colleague's arguments: The history is in the SCM Developers must not be aware of the history of the code directly in the code Packages gets 15k lines long and unstructured comments make these packages harder to understand What do you think is the best approach? Or do you have a better approach to solve this problem?

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  • Black screen appears when booting new install of 11.10 on my desktop, cannot access Grub menu to fix

    - by Cee
    I installed 11.10 on my desktop PC but get a black screen after the BIOS screen when I try to boot it. I was able to run 10.04.04 on my hard drive before installing 11.10 and I am also able to use 11.10 on my usb pendrive and CD ROM. I've tried unplugging all USB devices before booting and also upgrading from 11.10 to 11.10. Holding the shift key from the BIOS screen doesn't allow me to access the GRUB menu to try: Highlight the first entry, press “e” to edit it. Navigate to words “quiet splash”, delete them and type “nomodeset” in their place (without quotes). Press Ctrl + X to continue boot. Once on the desktop, go to System Administration Additional Drivers and activate the recommended drivers. So running 11.10 on my pendrive, I tried editing /etc/default/grub, commenting out the GRUB_HIDDEN_TIMEOUT setting by putting a '#' in front of it to display the grub menu and setting GRUB_TIMEOUT setting to a value greater than or equal to 1 e.g. GRUB_TIMEOUT=10. However, when I run sudo update-grub, I get: /usr/sbin/grub-probe: error: cannot find a device for / (is /dev mounted?) I get the same error with update-grub after: sudo mount /dev/sda1 /mnt and after: sudo grub-install --root-directory=/mnt /dev/sda reboot sudo update-grub Other suggestions to fix the update-grub problem: Open synaptic, then purge all the related grub installed packages and reinstall grub-pc then and finally: sudo update-grub Or use Grub Customizer http://ubuntuforums.org/showthread.php?t=1195275 What would be the best way to approach this? I'm concerned about purging "all the related grub installed packages" but if it's true some files are corrupted this would seem necessary. Also, was I executing the correct commands i.e. with mount and grub-install, before running grub-update?

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  • Intermittent temporary GUI freeze in Ubuntu 11.10

    - by Oscar
    I've been using Ubuntu 11.10 for a month or so. In the last week it's started freezing randomly (every few hours or minutes). I can still move the mouse and switch to other terminals with ctrl+alt. I thought this was purely a gui issue as I could continue entering commands (mouse clicks and keys) which seem to be processed once the system resumes (generally 30 seconds to a few minutes). I'm using gnome and metacity. I can't identify anything in particular that triggers the freezes. Saving a file in LibreOffice causes the system to hang. I tried disabling most of the services I've installed (dropbox, autokey, etc.) but doesn't help. Switching to another terminal and running top, the CPU column is shared equally among all of my processes (i.e. non-root). I have no idea what that signifies. My PC is unusable in this state. CPU model name : Pentium(R) Dual-Core CPU E6700 @ 3.20GHz [7m PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND [0;10m[39;49m[K [0;10m[0;10m 1499 ogga 20 0 404m 32m 13m R 10 0.8 0:28.19 python [0;10m[39;49m [0;10m[0;10m 1501 ogga 20 0 216m 13m 6224 R 10 0.3 0:18.28 ibus-x11 [0;10m[39;49m [0;10m[0;10m 1679 ogga 20 0 449m 34m 15m R 10 0.9 0:41.10 gnome-panel [0;10m[39;49m [0;10m[0;10m 1710 ogga 20 0 350m 15m 8324 R 10 0.4 0:18.25 bluetooth-apple [0;10m[39;49m [0;10m[0;10m 1752 ogga 20 0 458m 37m 13m R 10 0.9 0:22.62 autokey-gtk [0;10m[39;49m [0;10m[0;10m 2081 ogga 20 0 354m 17m 9800 R 10 0.5 0:16.36 update-notifier [0;10m[39;49m [0;10m[0;10m 5439 ogga 20 0 640m 104m 38m R 10 2.6 0:45.17 chromium-browse [0;10m[39;49m [0;10m[0;10m 5586 ogga 20 0 381m 42m 21m R 10 1.1 0:20.17 chromium-browse [0;10m[39;49m [0;10m[0;10m 6422 ogga 20 0 529m 59m 18m R 10 1.5 0:28.15 sublime_text [0;10m[39;49m [0;10m[0;10m 1362 ogga 20 0 264m 14m 7884 R 8 0.4 0:18.29 gnome-session [0;10m[39;49m [0;10m[0;10m 1673 ogga 20 0 351m 17m 9768 R 8 0.4 0:21.78 metacity [0;10m[39;49m [0;10m[0;10m 1708 ogga 20 0 249m 13m 7156 R 8 0.3 0:18.23 gnome-fallback- [0;10m[39;49m [0;10m[0;10m 1709 ogga 20 0 572m 28m 15m R 8 0.7 0:18.37 nautilus [0;10m[39;49m [0;10m[0;10m 1722 ogga 20 0 467m 18m 9m R 8 0.5 0:18.43 nm-applet [0;10m[39;49m [0;10m[0;10m 1727 ogga 20 0 225m 12m 6304 R 8 0.3 0:18.24 polkit-gnome-au [0;10m[39;49m [0;10m[0;10m 1731 ogga 20 0 422m 19m 10m R 8 0.5 0:26.62 gnome-sound-app [0;10m[39;49m [0;10m[0;10m 1735 ogga 20 0 306m 31m 13m R 8 0.8 0:18.37 python [0;10m[39;49m [0;10m[0;10m 1754 ogga 20 0 286m 16m 8912 R 8 0.4 0:18.90 vino-server [0;10m[39;49m [0;10m[0;10m 1798 ogga 20 0 246m 15m 7476 R 8 0.4 0:18.25 gnome-screensav [0;10m[39;49m [0;10m[0;10m 1851 ogga 20 0 185m 14m 7256 R 8 0.4 0:18.18 gdu-notificatio [0;10m[39;49m [0;10m[0;10m 1923 ogga 20 0 251m 28m 11m R 8 0.7 0:17.96 applet.py [0;10m[39;49m [0;10m[0;10m 4085 ogga 20 0 378m 22m 11m R 8 0.6 0:18.19 gnome-terminal [0;10m[39;49m [0;10m 4213 ogga 20 0 263m 73m 15m S 2 1.9 3:57.44 skype [0;10m[39;49m [0;10m 1 root 20 0 24188 1492 1320 S 0 0.0 0:00.45 init [0;10m[39;49m [0;10m 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd [0;10m[39;49m [0;10m 3 root 20 0 0 0 0 S 0 0.0 0:02.27 ksoftirqd/0 [0;10m[39;49m [0;10m 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 [0;10m[39;49m [0;10m 7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 [0;10m[39;49m [0;10m 9 root 20 0 0 0 0 S 0 0.0 0:01.97 ksoftirqd/1 [0;10m[39;49m [0;10m 10 root 20 0 0 0 0 S 0 0.0 0:01.16 kworker/0:1 [0;10m[39;49m [0;10m 11 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset [0;10m[39;49m [0;10m 12 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper [0;10m[39;49m [0;10m 13 root 0 -20 0 0 0 S 0 0.0 0:00.00 netns [0;10m[39;49m [0;10m 15 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers [0;10m[39;49m [0;10m 16 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default [0;10m[39;49m [0;10m 17 root 0 -20 0 0 0 S 0 0.0 0:00.00 kintegrityd [0;10m[39;49m [0;10m 18 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd [0;10m[39;49m [0;10m 19 root 0 -20 0 0 0 S 0 0.0 0:00.00 ata_sff [0;10m[39;49m [0;10m 20 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd [0;10m[39;49m [0;10m 21 root 0 -20 0 0 0 S 0 0.0 0:00.00 md [0;10m[39;49m [0;10m 23 root 20 0 0 0 0 S 0 0.0 0:00.00 khungtaskd [0;10m[39;49m [0;10m 24 root 20 0 0 0 0 S 0 0.0 0:00.14 kswapd0 [0;10m[39;49m [0;10m 25 root 25 5 0 0 0 S 0 0.0 0:00.00 ksmd [0;10m[39;49m [0;10m 26 root 39 19 0 0 0 S 0 0.0 0:00.00 khugepaged [0;10m[39;49m [0;10m 27 root 20 0 0 0 0 S 0 0.0 0:00.00 fsnotify_mark [0;10m[39;49m [0;10m 28 root 20 0 0 0 0 S 0 0.0 0:00.00 ecryptfs-kthrea [0;10m[39;49m [0;10m 29 root 0 -20 0 0 0 S 0 0.0 0:00.00 crypto [0;10m[39;49m [0;10m 37 root 0 -20 0 0 0 S 0 0.0 0:00.00 kthrotld [0;10m[39;49m [0;10m 38 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0 [0;10m[39;49m [0;10m 39 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1 [0;10m[39;49m [0;10m 41 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2 [0;10m[39;49m [0;10m 42 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3 [0;10m[39;49m [0;10m 64 root 20 0 0 0 0 S 0 0.0 0:02.98 kworker/0:2 [0;10m[39;49m [0;10m 242 root 20 0 0 0 0 S 0 0.0 0:00.39 jbd2/sdb1-8 [0;10m[39;49m [0;10m 243 root 0 -20 0 0 0 S 0 0.0 0:00.00 ext4-dio-unwrit [0;10m[39;49m [0;10m 288 root 20 0 17236 448 448 S 0 0.0 0:00.04 upstart-udev-br [0;10m[39;49m [0;10m 295 root 20 0 21752 884 796 S 0 0.0 0:00.06 udevd And at another time: [7m PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND [0;10m[39;49m[K [0;10m[0;10m 1757 ogga 20 0 222m 9932 6300 R 13 0.2 0:05.69 polkit-gnome-au [0;10m[39;49m [0;10m[0;10m 1559 ogga 20 0 152m 9764 6112 R 13 0.2 0:05.77 ibus-x11 [0;10m[39;49m [0;10m[0;10m 1786 ogga 20 0 457m 33m 13m R 13 0.9 0:06.10 autokey-gtk [0;10m[39;49m [0;10m[0;10m 1395 ogga 20 0 262m 12m 7880 R 12 0.3 0:05.88 gnome-session [0;10m[39;49m [0;10m[0;10m 1557 ogga 20 0 403m 31m 13m R 12 0.8 0:14.95 python [0;10m[39;49m [0;10m[0;10m 1745 ogga 20 0 247m 11m 7196 R 12 0.3 0:05.69 gnome-fallback- [0;10m[39;49m [0;10m[0;10m 1767 ogga 20 0 237m 26m 11m R 12 0.7 0:05.87 python [0;10m[39;49m [0;10m[0;10m 1713 ogga 20 0 440m 25m 13m R 12 0.6 0:13.76 gnome-panel [0;10m[39;49m [0;10m[0;10m 1747 ogga 20 0 348m 13m 8328 R 11 0.3 0:05.22 bluetooth-apple [0;10m[39;49m [0;10m[0;10m 1754 ogga 20 0 465m 16m 10m R 11 0.4 0:05.21 nm-applet [0;10m[39;49m [0;10m[0;10m 1710 ogga 20 0 167m 11m 7564 R 11 0.3 0:05.21 metacity [0;10m[39;49m [0;10m[0;10m 1761 ogga 20 0 406m 17m 9928 R 11 0.4 0:12.71 gnome-sound-app [0;10m[39;49m [0;10m[0;10m 1789 ogga 20 0 283m 13m 8852 R 11 0.3 0:05.55 vino-server [0;10m[39;49m [0;10m[0;10m 1815 ogga 20 0 243m 11m 7452 R 11 0.3 0:05.17 gnome-screensav [0;10m[39;49m [0;10m[0;10m 1885 ogga 20 0 182m 11m 7256 R 11 0.3 0:05.18 gdu-notificatio [0;10m[39;49m [0;10m[0;10m 1957 ogga 20 0 249m 25m 11m R 11 0.7 0:05.32 applet.py [0;10m[39;49m [0;10m[0;10m 2067 ogga 20 0 260m 12m 7828 R 11 0.3 0:05.21 update-notifier [0;10m[39;49m [0;10m 1975 ogga 20 0 292m 48m 11m S 0 1.2 0:08.28 ubuntuone-syncd [0;10m[39;49m [0;10m[0;10m 2363 ogga 20 0 21468 1384 988 R 0 0.0 0:00.01 top [0;10m[39;49m [0;10m 1 root 20 0 24284 2296 1320 S 0 0.1 0:00.46 init [0;10m[39;49m [0;10m 2 root 20 0 0 0 0 S 0 0.0 0:00.00 kthreadd [0;10m[39;49m [0;10m 3 root 20 0 0 0 0 S 0 0.0 0:00.05 ksoftirqd/0 [0;10m[39;49m [0;10m 4 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/0:0 [0;10m[39;49m [0;10m 5 root 20 0 0 0 0 S 0 0.0 0:00.19 kworker/u:0 [0;10m[39;49m [0;10m 6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0 [0;10m[39;49m [0;10m 7 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/1 [0;10m[39;49m [0;10m 8 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/1:0 [0;10m[39;49m [0;10m 9 root 20 0 0 0 0 S 0 0.0 0:00.06 ksoftirqd/1 [0;10m[39;49m [0;10m 10 root 20 0 0 0 0 S 0 0.0 0:00.09 kworker/0:1 [0;10m[39;49m [0;10m 11 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset [0;10m[39;49m [0;10m 12 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper [0;10m[39;49m [0;10m 13 root 0 -20 0 0 0 S 0 0.0 0:00.00 netns [0;10m[39;49m [0;10m 14 root 20 0 0 0 0 S 0 0.0 0:00.25 kworker/u:1 [0;10m[39;49m [0;10m 15 root 20 0 0 0 0 S 0 0.0 0:00.00 sync_supers [0;10m[39;49m [0;10m 16 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default [0;10m[39;49m [0;10m 17 root 0 -20 0 0 0 S 0 0.0 0:00.00 kintegrityd [0;10m[39;49m [0;10m 18 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd [0;10m[39;49m [0;10m 19 root 0 -20 0 0 0 S 0 0.0 0:00.00 ata_sff [0;10m[39;49m [0;10m 20 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd [0;10m[39;49m [0;10m 21 root 0 -20 0 0 0 S 0 0.0 0:00.00 md [0;10m[39;49m [0;10m 22 root 20 0 0 0 0 S 0 0.0 0:00.22 kworker/1:1 [0;10m[39;49m [0;10m 23 root 20 0 0 0 0 S 0 0.0 0:00.00 khungtaskd [0;10m[39;49m [0;10m 24 root 20 0 0 0 0 S 0 0.0 0:00.00 kswapd0 [0;10m[39;49m [0;10m 25 root 25 5 0 0 0 S 0 0.0 0:00.00 ksmd [0;10m[39;49m [0;10m 26 root 39 19 0 0 0 S 0 0.0 0:00.00 khugepaged [0;10m[39;49m [0;10m 27 root 20 0 0 0 0 S 0 0.0 0:00.00 fsnotify_mark [0;10m[39;49m [0;10m 28 root 20 0 0 0 0 S 0 0.0 0:00.00 ecryptfs-kthrea [0;10m[39;49m [0;10m 29 root 0 -20 0 0 0 S 0 0.0 0:00.00 crypto [0;10m[39;49m [0;10m 37 root 0 -20 0 0 0 S 0 0.0 0:00.00 kthrotld [0;10m[39;49m [0;10m 38 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0 [0;10m[39;49m [0;10m 39 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1 [0;10m[39;49m [0;10m 40 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:2 [0;10m[39;49m [0;10m 41 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2 [0;10m[39;49m [0;10m 42 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3 [0;10m[39;49m [0;10m 43 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:3 [0;10m[39;49m [0;10m 44 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:4 [0;10m[39;49m [0;10m 45 root 20 0 0 0 0 S 0 0.0 0:00.00 kworker/u:5 [0;10m[39;49m[6;1H[K Sorry about the horrible formatting. Thanks for any suggestions... Edit: I notice that my virtual computer (win7 64 on virtualbox) continues to respond most of the time during these 'freezes' Edit2: I suspect this is something to do with UI priority being too low... but I don't know enough about linux to know how to address that.

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  • Swap, Swapiness and Standby: swapping starts when waking up

    - by mdo
    I'm running running Ubuntu 12.04 on a Lenovo W500 (Core2Duo T9400, 4GB Ram) Current kernel: 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux -- but the problems exists since a couple of months, surviving quite a few software (includig kernel) updates I regularly put my machine into suspend-to-ram (S3) and when the machine comes back up Ubuntu starts to swap out processes. I was able to observe that the used swap-space starts to grow right after the box returns. See munin graphs below, the gap (obviously) shows the timeframe in STR. Needless to say that the box becomes unusable while swapping, load goes up beyond 10. What I've done so far: lowered swappiness from default (60) to 10 (via /etc/sysctl.conf: vm.swappiness=10) -- this has improved the situation much, but sometimes the problem comes back, I have not found a trigger (like memory usage) for this for now lowered swappiness to 5 -- perhaps this has brought an improvement again Before going to STR the box ran stable without (swapping) problems for hours. Today when the issue showed up again I used this script (- http://stackoverflow.com/questions/479953/how-to-find-out-which-processes-are-swapping-in-linux) to find what processes have the most used swap space. The result after the swap orgy is like that (all PIDs with more than 10M usage): Overall swap used: 2121344 kB ======================================== kB pid name ======================================== 439520 17491 java 208148 22719 firefox 136640 4337 /usr/bin/quodli 120852 5271 chrome 81832 5264 chrome 74284 17003 chrome 65368 16960 chrome 57088 3675 chrome 56184 30923 chrome 54412 11331 chrome 54264 3878 chrome 51508 18382 chrome 50088 3163 zeitgeist-fts 49772 15543 chrome 41344 15355 compiz 35040 1161 mysqld 32124 18374 chrome 30940 11339 chrome 30044 5752 chrome 28780 4235 plugin-containe 24576 31246 empathy-chat 23840 17703 chrome 22512 3207 ubuntuone-syncd 21588 1937 ntop 18336 2021 asterisk 17200 3915 chrome 13964 1935 Xorg 12036 10679 chrome 11104 30782 empathy 11056 2889 python 10932 16565 knotify4 The java instance at the top is IntelliJ. IntelliJ, Firefox and Chrome also were all used right before the box was put to STR. So my question is: can I somehow prevent these swapouts AND why do they happen? Is it perhaps related to some misidentification of idle processes? I'm not looking for resolutions like: turn off swap buy more RAM Thanks in advance!

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  • Warning message in boot.ini

    - by MA1
    Hi everyone, I have a dual boot system with Windows XP Pro and Windows 7. Following are the contents of my system's boot.ini. ;Warning: Boot.ini is used on Windows XP and earlier operating systems. ;Warning: Use BCDEDIT.exe to modify Windows Vista boot options. ; [boot loader] timeout=30 default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /NOEXECUTE=OPTIN /FASTDETECT I just want to know about first two warning lines, whether these two lines are always present in dual boot system when the boot process is different for installed operating systems, for example xp + vista/w7 or windows2000 + vista/w7 etc? Regards,

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  • Where can I download copies of a Windows XP ISO image with Internet Explorer 6 or Internet Explorer 7 for VirtualBox?

    - by Andrew Arrow
    I have Windows 7 Professional hosting Ubuntu inside VirtualBox for my development machine. To test my site, I run Internet Explorer and hit my Ubuntu box. This works great for Internet Explorer 8, the default browser on this Windows machine. I also want to run another VM with a copy of Windows XP with Internet Explorer 6 or Internet Explorer 7. Where can I download ISO image files of old copies of Windows XP? I've looked in Internet Explorer Application Compatibility VPC Image and these only run in Virtual PC/XP Mode which won't run while VirtualBox is running. If I have to run VirtualBox (can't work without Ubuntu running the site), is there any way to test Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 from the same Windows 7 machine?

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  • SQL University: What and why of database refactoring

    - by Mladen Prajdic
    This is a post for a great idea called SQL University started by Jorge Segarra also famously known as SqlChicken on Twitter. It’s a collection of blog posts on different database related topics contributed by several smart people all over the world. So this week is mine and we’ll be talking about database testing and refactoring. In 3 posts we’ll cover: SQLU part 1 - What and why of database testing SQLU part 2 - What and why of database refactoring SQLU part 3 - Tools of the trade This is a second part of the series and in it we’ll take a look at what database refactoring is and why do it. Why refactor a database To know why refactor we first have to know what refactoring actually is. Code refactoring is a process where we change module internals in a way that does not change that module’s input/output behavior. For successful refactoring there is one crucial thing we absolutely must have: Tests. Automated unit tests are the only guarantee we have that we haven’t broken the input/output behavior before refactoring. If you haven’t go back ad read my post on the matter. Then start writing them. Next thing you need is a code module. Those are views, UDFs and stored procedures. By having direct table access we can kiss fast and sweet refactoring good bye. One more point to have a database abstraction layer. And no, ORM’s don’t fall into that category. But also know that refactoring is NOT adding new functionality to your code. Many have fallen into this trap. Don’t be one of them and resist the lure of the dark side. And it’s a strong lure. We developers in general love to add new stuff to our code, but hate fixing our own mistakes or changing existing code for no apparent reason. To be a good refactorer one needs discipline and focus. Now we know that refactoring is all about changing inner workings of existing code. This can be due to performance optimizations, changing internal code workflows or some other reason. This is a typical black box scenario to the outside world. If we upgrade the car engine it still has to drive on the road (preferably faster) and not fly (no matter how cool that would be). Also be aware that white box tests will break when we refactor. What to refactor in a database Refactoring databases doesn’t happen that often but when it does it can include a lot of stuff. Let us look at a few common cases. Adding or removing database schema objects Adding, removing or changing table columns in any way, adding constraints, keys, etc… All of these can be counted as internal changes not visible to the data consumer. But each of these carries a potential input/output behavior change. Dropping a column can result in views not working anymore or stored procedure logic crashing. Adding a unique constraint shows duplicated data that shouldn’t exist. Foreign keys break a truncate table command executed from an application that runs once a month. All these scenarios are very real and can happen. With the proper database abstraction layer fully covered with black box tests we can make sure something like that does not happen (hopefully at all). Changing physical structures Physical structures include heaps, indexes and partitions. We can pretty much add or remove those without changing the data returned by the database. But the performance can be affected. So here we use our performance tests. We do have them, right? Just by adding a single index we can achieve orders of magnitude performance improvement. Won’t that make users happy? But what if that index causes our write operations to crawl to a stop. again we have to test this. There are a lot of things to think about and have tests for. Without tests we can’t do successful refactoring! Fixing bad code We all have some bad code in our systems. We usually refer to that code as code smell as they violate good coding practices. Examples of such code smells are SQL injection, use of SELECT *, scalar UDFs or cursors, etc… Each of those is huge code smell and can result in major code changes. Take SELECT * from example. If we remove a column from a table the client using that SELECT * statement won’t have a clue about that until it runs. Then it will gracefully crash and burn. Not to mention the widely unknown SELECT * view refresh problem that Tomas LaRock (@SQLRockstar on Twitter) and Colin Stasiuk (@BenchmarkIT on Twitter) talk about in detail. Go read about it, it’s informative. Refactoring this includes replacing the * with column names and most likely change to application using the database. Breaking apart huge stored procedures Have you ever seen seen a stored procedure that was 2000 lines long? I have. It’s not pretty. It hurts the eyes and sucks the will to live the next 10 minutes. They are a maintenance nightmare and turn into things no one dares to touch. I’m willing to bet that 100% of time they don’t have a single test on them. Large stored procedures (and functions) are a clear sign that they contain business logic. General opinion on good database coding practices says that business logic has no business in the database. That’s the applications part. Refactoring such behemoths requires writing lots of edge case tests for the stored procedure input/output behavior and then start to refactor it. First we split the logic inside into smaller parts like new stored procedures and UDFs. Those then get called from the master stored procedure. Once we’ve successfully modularized the database code it’s best to transfer that logic into the applications consuming it. This only leaves the stored procedure with common data manipulation logic. Of course this isn’t always possible so having a plethora of performance and behavior unit tests is absolutely necessary to confirm we’ve actually improved the codebase in some way.   Refactoring is not a popular chore amongst developers or managers. The former don’t like fixing old code, the latter can’t see the financial benefit. Remember how we talked about being lousy at estimating future costs in the previous post? But there comes a time when it must be done. Hopefully I’ve given you some ideas how to get started. In the last post of the series we’ll take a look at the tools to use and an example of testing and refactoring.

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  • Skydrive does not synchronize with one device but synchronizes successfully with another one.

    - by Hobbes
    I have an Outlook id. I also have Skydrive installed on my personal laptop (Windows 7 x64). The folders and files synchronize successfully. Today, I installed Skydrive on my office PC and logged in with the same id as above but it does not synchronize any of my folders or files, other than the default ones. When I view the logs (filename: SkyDrive.exe.reg.2012-08-09-150239.654.log), I see the following entry. 09-17-12,13:31:35.075,45a,146c,0,PAL,systeminformationhelper.cpp(661),0,0018E4F8,CRIT,The registry key to block Remote Access is not found.,System Error Code=0x2 Any idea as to what could be the problem?

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  • wireless network with cable modem and access point

    - by hayri
    I have a Scientific Atlanta EPC2203 cable modem and a TP-Link TL-WA500G access point. When I connect my computer directly to modem with a CAT5e cable I have internet connection on my laptop (when i type ipconfig i see my external ip there, provided by isp). So I decided to have wireless network in the flat, allowing other devices to connect as well. I bought this wireless ap (TL-WA500G) configured Wireless security stuff, and connected it to my modem. With that configuration (by default AP has static ip of 192.168.1.254) only my computer can connect to internet over wifi, but not any other device. When I set the IP of AP to Dynamic IP (DHCP) it is the same. How should I change my configuration to enable all wifi devices to connect to internet?

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  • Keyboard layout - certain keys work with AltGr, other doesn't

    - by user23122
    I run Ubuntu 12.04 in VirtualBox 4.3.14 on Windows 7 with a Swedish keyboard layout. In Windows everything works fine but in Ubuntu some keys/characters (the most important for a programmer) doesn't work. This is the result from pressing the keys in the top row 1234567890+´ (Unmodified top row on keyboard) @£$€ {[]}\ (Windows with AltGr) ¡ £$€¥ ± (Ubuntu with "AltGr") More characters are broken (pipe | is a notable example) but the top row is the biggest problem. I can workaround this by enabling "direct connection" from my USB keyboard to VirtualBox but then I have to manually disable that every time I switch out of VirtualBox. I have tried different keyboard layout, sometimes @ et al works but then other characters are broken. I also tried sudo dpkg-reconfigure keyboard-configuration with default values, but it didn't change anything. I have guest additions installed (from the built in virtual CD). I got my VB disk image from a colleague who does not have this problem, however, he does not have guest additions installed (and hence can't use a higher resolution than 1024x768, and I need to run Ecplipse...). He also have different installation of Virtual Box and Windows. For example, the key for 2 should, in Ubuntu, produce four different characters, 2"²@. The first three works fine, including superscript 2 that requires AltGr-Shift-2, it is just plain AltGr-2 to get @ that does not work on this key (and all the other keys I have problem with). Any ideas for a fix?

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