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  • Friday Fun: Stream Master Unlimited

    - by Asian Angel
    In this week’s game your puzzle solving skills will be tested as you work to build paths between all the colored power nodes on each grid. With 300 puzzle grids and three difficulty levels to challenge you, will you be able to successfully connect all the power nodes from beginning to end in the game? Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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  • Should I be an algorithm developer, or java web frameworks type developer?

    - by Derek
    So - as I see it, there are really two kinds of developers. Those that do frameworks, web services, pretty-making front ends, etc etc. Then there are developers that write the algorithms that solve the problem. That is, unless the problem is "display this raw data in some meaningful way." In that case, the framework/web developer guy might be doing both jobs. So my basic problem is this. I have been an algorithms kind of software developer for a few years now. I double majored in Math and Computer science, and I have a master's in systems engineering. I have never done any web-dev work, with the exception of a couple minor jobs, and some hobby level stuff. I have been job interviewing lately, and this is what happens: Job is listed as "programmer- 5 years of experience with the following: C/C++, Java,Perl, Ruby, ant, blah blah blah" Recruiter calls me, says they want me to come in for interview In the interview, find out they have some webservices development, blah blah blah When asked in the interview, talk about my experience doing algorithms, optimization, blah blah..but very willing to learn new languages, frameworks, etc Get a call back saying "we didn't think you were a fit for the job you interviewed wtih, but our algorithm team got wind of you and wants to bring you on" This has happened to me a couple times now - see a vague-ish job description looking for a "programmer" Go in, find out they are doing some sort of web-based tool, maybe with some hardcore algorithms running in the background. interview with people for the web-based tool, but get an offer from the algorithms people. So the question is - which job is the better job? I basically just want to get a wide berth of experience at this level of my career, but are algorithm developers so much in demand? Even more so than all these supposed hot in demand web developer guys? Will I be ok in the long run if I go into the niche of math based algorithm development, and just little to no, or hobby level web-dev experience? I basically just don't want to pigeon hole myself this early. My salary is already starting to get pretty high - and I can see a company later on saying "we really need a web developer, but we'll hire this 50k/year college guy, instead of this 100k/year experience algorithm guy" Cliffs notes: I have been doing algorithm development. I consider myself to be a "good programmer." I would have no problem picking up web technologies and those sorts of frameworks. During job interviews, I keep getting "we think you've got a good skillset - talk to our algorithm team" instead of wanting me to learn new skills on the job to do their web services or whhatever other new technology they are doing. Edit: Whenever I am talking about algorithm development here - I am talking about the code that produces the answer. Typically I think of more math-based algorithms: solving a financial problem, solving a finite element method, image processing, etc

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  • Why do I bother with RAID 10 ?

    - by GrumpyOldDBA
    Before I post anything I just want to clarify what I mean by RAID 10 , this is sets of mirrored pairs that have been striped as against a RAID 0 which has been mirrored. I've just had a disk failure in the data array for one of my dev servers, it's an eight disk raid 8, no real worries, replace disk and off we go - but no - the HP engineers told me from the diagnostics ( done to ensure I got the right replacement under warranty ) that not only had a disk failed but I'd lost all the data...(read more)

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  • Using opencv on 12.04

    - by leighman
    I have some simple opencv files which I wanted to compile on 12.04. I have installed all the -dev packages They use: #include <cv.h> #include <highgui.h> at the top of the file. Using g++ `pkg-config --cflags --libs opencv` canny.cpp gives cv.h: No such file or directory pkg-config seems to list /usr/include/opencv but the directory created at install is /usr/include/opencv2 Is this a bug? Any advice?

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  • Disable Cinnamon 2 lock screen?

    - by minerz029
    When my computer is locked, I am presented with the default Ubuntu lockscreen. When I enter my password and unlock it, I am presented with the Cinnamon 2 lock screen and I have to enter my password again. How can I disable the Cinnamon 2 lock screen? Note: I've installed Cinnamon 2 with these commands: sudo add-apt-repository ppa:gwendal-lebihan-dev/cinnamon-stable sudo apt-get update sudo apt-get install cinnamon

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  • Successful Common Code Libraries

    - by Adam Jenkin
    Are there any processes, guidelines or best practices that can be followed for the successful implementation of a common code libraries. Currently we are discussing the implementation of common code libraries within our dev team. In our instance, our common code libraries would compliment mainstream .net software packages we develop against. In particular, im interested in details and opinions on: Organic vs design first approach Version management Success stories (when the do work) Horror stories (when they dont work) Many Thanks

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  • What are the Top Developer Productivity Tools/Plugins for Java in Eclipse?

    - by Ryan Hayes
    I personally use CodeRush in Visual Studio 2010 to do refactoring, write code faster with templates and generally navigate my code 10 times faster than stock VS. Recently, I've been working on another Android app and got to thinking...What are the top productivity plugins for Eclipse? Preferably free. I'm looking for plugins that help write in Java, not PHP or Rails or any of the other languages Eclipse supports.

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  • How to deal with different programming styles in a team?

    - by user3287
    We have a small dev team (only 3 developers) and we recently got a new team member. While he is a smart coder, his coding style is completely different from ours. Our existing code base contains mostly readable, clean and maintainable code, but the new team member is quickly changing many files, introducing ugly hacks and shortcuts, using defines all over the place, adding functions in the wrong places, etc. My question is if others have experienced such a situation before, and if anyone has tips on how to talk to him.

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  • Using the fsc mount option with nfsroot kernel parameter to allow FS-cache

    - by meanderix
    I'm PXE-booting a Ubuntu 10.10 system, where I specify the kernel parameters as follows: append root=/dev/nfs initrd=ubuntu-boot/initrd.img-2.6.35-24-generic nfsroot=11.22.33.44:/data/nfsroot,fsc ip=dhcp rw I need to use the mount option 'fsc' in order to use FS-cache functionality (the cachefilesd package.) However, when I try this I get the following error upon boot: nfsmount: bad option 'fsc' Why doesn't nfsmount permit this option? (It works fine when you mount manually with "mount -o fsc" after booting up.)

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  • How do I fix postfix TLS?

    - by Savanni D'Gerinel
    STARTTLS was working with my system earlier today. Without me altering the system in any way, it spontaneously broke. I've now been trying to fix it for a couple of hours, to no success. When I connect to the server, this is what I get: savanni@Orolo:~$ telnet apps.savannidgerinel.com 25 Trying 129.121.182.135... Connected to apps.sasavanni@Orolo:~$ telnet apps.savannidgerinel.com 25 Trying 129.121.182.135... Connected to apps.savannidgerinel.com. Escape character is '^]'. 220 *********************************************** ehlo dude 250-apps.savannidgerinel.com 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-XXXXXXXA 250-AUTH PLAIN 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN ^]close telnet> close Connection closed. Okay, obviously STARTTLS isn't present in this list. So I've been digging through my configuration files and working through the tutorials again, and that has done me no good at all. Here's my tls-related configuration: smtp_tls_CAfile = /etc/ssl/certs/savannidgerinel_com_CA.pem smtp_tls_cert_file = /etc/ssl/certs/apps.savannidgerinel.com.pem smtp_tls_key_file = /etc/ssl/private/apps.savannidgerinel.com.key.pem smtp_tls_security_level = may smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_tls_CAfile = /etc/ssl/certs/savannidgerinel_com_CA.pem smtpd_tls_cert_file = /etc/ssl/certs/apps.savannidgerinel.com.pem smtpd_tls_key_file = /etc/ssl/private/apps.savannidgerinel.com.key.pem smtpd_tls_loglevel = 3 smtpd_tls_received_header = yes smtpd_tls_security_level = may smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache tls_random_source = dev:/dev/urandom All of the certificate files are present, the server private key is present, the server CA is present, and the smtpd_scache.db and smtp_scache.db files are both present. All are accessible to the postfix user. Speaking of which, here are the processes running: savanni@apps:/var/lib/postfix$ ps aux | grep postfix root 3525 0.0 0.1 25112 1680 ? Ss 20:19 0:00 /usr/lib/postfix/master postfix 3526 0.0 0.1 27176 1524 ? S 20:19 0:00 pickup -l -t fifo -u -c -o content_filter= -o receive_override_options=no_header_body_checks postfix 3527 0.0 0.1 27228 1552 ? S 20:19 0:00 qmgr -l -t fifo -u postfix 3528 0.0 0.4 46948 4144 ? S 20:19 0:00 smtpd -n smtp -t inet -u -c -o stress= -s 2 postfix 3529 0.0 0.1 27176 1628 ? S 20:19 0:00 proxymap -t unix -u postfix 3530 0.0 0.3 38212 3176 ? S 20:19 0:00 tlsmgr -l -t unix -u -c postfix 3531 0.0 0.1 27176 1516 ? S 20:19 0:00 anvil -l -t unix -u -c postfix 3535 0.0 0.1 27188 1544 ? S 20:20 0:00 trivial-rewrite -n rewrite -t unix -u -c The log files say absolutely nothing related to TLS except for this: Nov 6 02:19:45 apps postfix/master[3525]: daemon started -- version 2.9.6, configuration /etc/postfix Nov 6 02:19:49 apps postfix/smtpd[3528]: initializing the server-side TLS engine Nov 6 02:19:49 apps postfix/tlsmgr[3530]: open smtpd TLS cache btree:/var/lib/postfix/smtpd_scache Nov 6 02:19:49 apps postfix/tlsmgr[3530]: tlsmgr_cache_run_event: start TLS smtpd session cache cleanup Nov 6 02:19:49 apps postfix/smtpd[3528]: connect from unknown[204.16.68.108] Neither syslog nor mail.err shows any indication of a problem. As far as the whole system is concerned, all is well. But there is no STARTTLS and so I suddenly can't send any email at all. Help???

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  • changing default text input on nexus 7 ubuntu to bluetooth keyboard

    - by user101764
    i was curious if it was possible to use a logitech bluetooth keyboard for android 4.0+ with ubuntu on nexus 7? i was able to connect the keyboard regularly with the gui, the pin worked, so i would assume it is a matter of changing the default text input. i searched all of the settings i could find without finding any such option any help would be appreciated, if this is not possible feel free to say so and close this thread

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  • Why do I get Unity instead of Classic when using NX?

    - by Mathew
    Recently I installed FreeNX on my PC and when I login with my 'dev' account I get the Unity interface rather than Classic Gnome. This is odd as my last login before FreeNX was with the Classic interface. I would like to have Classic over FreeNX by default. I do login with a 'watch iplayer' account where the Unity interface works a treat. For this reason I would prefer not to uninstall Unity. Any ideas?

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  • Interview : retour sur Devoxx France 2012, par Thierry Leriche-Dessirier

    Bonjour à tous, Je vous propose un petit bilan de Devoxx France 2012, réalisé sous forme d'interview d'Antonio Goncalves, Hugo Lassiège et Nicolas Martignole. Cet article est disponible à l'adresse : http://thierry-leriche-dessirier.dev...x-france-2012/ Retrouvez également la rétrospective réalisée par l'équipe à l'adresse : http://blog.developpez.com/recap/jav...x-france-2012/ Et puis, lisez aussi les interviews réalisées avant Devoxx France 2012 : * Antonio :

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  • WinMo&rsquo;s Demise: Notifying Next of &ldquo;Kin&rdquo;

    - by andrewbrust
    This past Monday, April 12th, Visual Studio 2010 was launched.  And on that same day, Microsoft also launched a new line of  mobile phone handsets, called Kin.  The two product launches are actually connected, but only by what they do not have in common, and what they commonly lack. On the former point: VS 2010 had released to manufacturing a couple weeks prior to its launch.  The Kin phones, meanwhile are not yet available.  We don’t even know what they will cost.  (And I think cost will be a major factor in Kin’s success…I told ChannelWeb’s Yara Souza so in this article). What do the two products both lack? Simple: Windows Mobile 6.x. For example, Kin seems to be based on the same platform as Windows Phone 7 (albeit a subset).  And VS 2010 does not support .NET Compact Framework development, which means no .NET development support for WinMo 6.x and earlier. So I guess April 12th marks Windows Phone “clean slate day.”  If you want to develop for the old phone platform, you will need to use the old version of Visual Studio (i.e. 2008).  Luckily VS 2010 and 2008 can be installed side-by-side.  But I doubt that’s much consolation to developers who still target WinMo 6.5 and earlier. Remember, WinMo isn’t just about the phone.  There are all sorts of non-telephony mobile devices, including ruggedized Pocket PC-style instruments, bar code readers and shop-floor-deployed units that don’t run Windows Phone 7 and couldn’t, even if they wanted to. Where will developers in these markets go?  I would guess some will stick with WinMo 6.x and earlier, until Windows Phone 7 can handle their workloads, assuming that does indeed happen.  Others will likely go to Google’s Android platform. For OEMs and developers who need a customizable mobile software stack, Android is turning out to be out-WinMo-ing WinMo.  As I wrote in this post, Google took Microsoft’s model (minus the licensing fees) and combined it with a modern SmartPhone feature set (rather than a late 90s/early oughts PDA paradigm), to great success.  You might say Google embraced and extended. You might also say Microsoft shunned and withdrew.

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  • How to get SRGP working?

    - by Bo Tian
    I'm running 64-bit Ubuntu 10.10, and I'm trying to make SRGP work. SRGP is an old graphics package that accompanies the book "Computer Graphics" by Foley, van Dam, et al. I have installed libx11-dev, but I still can't get through make. I get the error "cannot find -lsrgp" when I typed make PROG=show_pattern. Full compilation messages are here http://pastebin.com/CWuw4xte What do I have to do to get it working?

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  • Unable to boot post upgade to 12.10 from 12.04 on a dial boot PC

    - by Prateek
    I have a dual boot PC with Win7 and Ubuntu. Last night I upgraded from 12.04 to 12.10 and since then I have not been able to boot and PC goes into grub rescue with error "File not found" I have tried the below steps set prefix=(hd0,msdos5)/boot/grub/i386-pc/ set root=(hd0,msdos5) insmod normal ( i get error symbol not found : 'grub_disk_dev_list'. when I try linux /boot/vmlinuz-3.2.0-32-generic root=/dev/sda5 ro (i get error - command not found 'linux' ) same for initrd I am not able to find out what sdXX to set also.

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  • The Moon Illusion Explained [Video]

    - by Jason Fitzpatrick
    When the moon is on the horizon it looks radically larger than it does up in the sky; check out this video to see the science behind the illusion. [via Geeks Are Sexy] What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • Week in Geek: Microsoft has Bought Underlying Patents for Netscape Browser

    - by Asian Angel
    Our latest edition of WIG is filled with news link goodness covering topics such as ChromeOS has received a new desktop-style look, a roundup of tools to remove Flashback malware on Macs, Kubuntu has a new official sponsor, and more. Wedding clipart courtesy of CartoonClipArtWorld. How to Stress Test the Hard Drives in Your PC or Server How To Customize Your Android Lock Screen with WidgetLocker The Best Free Portable Apps for Your Flash Drive Toolkit

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  • LEGO – A Hobbit Halloween [Video]

    - by Asian Angel
    Pippin and Merry are up to their old pranks once again, but this time they quickly get in over their heads while looking to indulge in a bit of Halloween fun! LEGO A Hobbit Halloween [via Neatorama] What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • Androids development life cycle model query [closed]

    - by Andrew Rose
    I have been currently researching Google and their approach to marketing the Android OS. Primarily using an open source technique with the Open Hand Alliance and out souring through third-party developers. I'm now keen to investigate their approach using various development life cycle models in the form of waterfall, spiral, scrum, agile etc. And i'm just curious to have some feedback from professionals and what approach they think Google would use to have a positive effect on their business. Thanks for your time Andy Rose

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  • openfeint or gamecenter?

    - by Gajet
    which one has more potential customers, easier API, and wider feature list? i'm going to develop implement one of those two for highscore recording in my game which ones gives more advantages? and by the way I might be going to port my game to android, so if you know any thing that can help me not to rewrite my code (for example a C++ wrapper for both of them) that would mean a greate plus for openfeint in my point of veiw.

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  • Google réagit à la décision de Nokia d'utiliser Windows Phone 7 : « deux dindes ne font pas un aigle » écrit un de ses responsables

    Google réagit à la décision de Nokia d'utiliser Windows Phone 7 « Deux dindes » ne feraient pas « un aigle » Google réagit à la décision de Nokia de choisir Windows Phone 7 pour ses futurs Smartphones haut de gamme au lieu de son OS mobile Android. Le constructeur Finlandais, dans un communiqué publié la semaine dernière, a présenté les axes de sa nouvelle stratégie dont le plus important est la confirmation de son partenariat avec Microsoft pour utiliser Windows Phone 7 comme nouvelle plate-forme pour ses terminaux mobiles. Microsoft et Google avaient formulé chacun une offre pour convaincre N...

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  • Developer – Cross-Platform: Fact or Fiction?

    - by Pinal Dave
    This is a guest blog post by Jeff McVeigh. Jeff McVeigh is the general manager of Performance Client and Visual Computing within Intel’s Developer Products Division. His team is responsible for the development and delivery of leading software products for performance-centric application developers spanning Android*, Windows*, and OS* X operating systems. During his 17-year career at Intel, Jeff has held various technical and management positions in the fields of media, graphics, and validation. He also served as the technical assistant to Intel’s CTO. He holds 20 patents and a Ph.D. in electrical and computer engineering from Carnegie Mellon University. It’s not a homogenous world. We all know it. I have a Windows* desktop, a MacBook Air*, an Android phone, and my kids are 100% Apple. We used to have 2.5 kids, now we have 2.5 devices. And we all agree that diversity is great, unless you’re a developer trying to prioritize the limited hours in the day. Then it’s a series of trade-offs. Do we become brand loyalists for Google or Apple or Microsoft? Do we specialize on phones and tablets or still consider the 300M+ PC shipments a year when we make our decisions on where to spend our time and resources? We weigh the platform options, monetization opportunities, APIs, and distribution models. Too often, I see developers choose one platform, or write to the lowest common denominator, which limits their reach and market success. But who wants to be ?me too”? Cross-platform coding is possible in some environments, for some applications, for some level of innovation—but it’s not all-inclusive, yet. There are some tricks of the trade to develop cross-platform, including using languages and environments that ?run everywhere.” HTML5 is today’s answer for web-enabled platforms. However, it’s not a panacea, especially if your app requires the ultimate performance or native UI look and feel. There are other cross-platform frameworks that address the presentation layer of your application. But for those apps that have a preponderance of native code (e.g., highly-tuned C/C++ loops), there aren’t tons of solutions today to help with code reuse across these platforms using consistent tools and libraries. As we move forward with interim solutions, they’ll improve and become more robust, based, in no small part, on our input. What’s your answer to the cross-platform challenge? Are you fully invested in HTML5 now? What are your barriers? What’s your vision to navigate the cross-platform landscape?  Here is the link where you can head next and learn more about how to answer the questions I have asked: https://software.intel.com/en-us Republished with permission from here. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL Tagged: Intel

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  • IRM and Consumerization

    - by martin.abrahams
    As the season of rampant consumerism draws to its official close on 12th Night, it seems a fitting time to discuss consumerization - whereby technologies from the consumer market, such as the Android and iPad, are adopted by business organizations. I expect many of you will have received a shiny new mobile gadget for Christmas - and will be expecting to use it for work as well as leisure in 2011. In my case, I'm just getting to grips with my first Android phone. This trend developed so much during 2010 that a number of my customers have officially changed their stance on consumer devices - accepting consumerization as something to embrace rather than resist. Clearly, consumerization has significant implications for information control, as corporate data is distributed to consumer devices whether the organization is aware of it or not. I daresay that some DLP solutions can limit distribution to some extent, but this creates a conflict between accepting consumerization and frustrating it. So what does Oracle IRM have to offer the consumerized enterprise? First and foremost, consumerization does not automatically represent great additional risk - if an enterprise seals its sensitive information. Sealed files are encrypted, and that fundamental protection is not affected by copying files to consumer devices. A device might be lost or stolen, and the user might not think to report the loss of a personally owned device, but the data and the enterprise that owns it are protected. Indeed, the consumerization trend is another strong reason for enterprises to deploy IRM - to protect against this expansion of channels by which data might be accidentally exposed. It also enables encryption requirements to be met even though the enterprise does not own the device and cannot enforce device encryption. Moving on to the usage of sealed content on such devices, some of our customers are using virtual desktop solutions such that, in truth, the sealed content is being opened and used on a PC in the normal way, and the user is simply using their device for display purposes. This has several advantages: The sensitive documents are not actually on the devices, so device loss and theft are even less of a worry The enterprise has another layer of control over how and where content is used, as access to the virtual solution involves another layer of authentication and authorization - defence in depth It is a generic solution that means the enterprise does not need to actively support the ever expanding variety of consumer devices - the enterprise just manages some virtual access to traditional systems using something like Citrix or Remote Desktop services. It is a tried and tested way of accessing sealed documents. People have being using Oracle IRM in conjunction with Citrix and Remote Desktop for several years. For some scenarios, we also have the "IRM wrapper" option that provides a simple app for sealing and unsealing content on a range of operating systems. We are busy working on other ways to support the explosion of consumer devices, but this blog is not a proper forum for talking about them at this time. If you are an Oracle IRM customer, we will be pleased to discuss our plans and your requirements with you directly on request. You can be sure that the blog will cover the new capabilities as soon as possible.

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  • NFS server generating "invalid extent" on EXT4 system disk?

    - by Stephen Winnall
    I have a server running Xen 4.1 with Oneiric in the dom0 and each of the 4 domUs. The system disks of the domUs are LVM2 volumes built on top of an mdadm RAID1. All the domU system disks are EXT4 and are created using snapshots of the same original template. 3 of them run perfectly, but one (called s-ub-02) keeps on being remounted read-only. A subsequent e2fsck results in a single "invalid extent" diagnosis: e2fsck 1.41.14 (22-Dec-2010) /dev/domu/s-ub-02-root contains a file system with errors, check forced. Pass 1: Checking inodes, blocks, and sizes Inode 525418 has an invalid extent (logical block 8959, invalid physical block 0, len 0) Clear<y>? yes Pass 2: Checking directory structure Pass 3: Checking directory connectivity Pass 4: Checking reference counts Pass 5: Checking group summary information /dev/domu/s-ub-02-root: 77757/655360 files (0.3% non-contiguous), 360592/2621440 blocks The console shows typically the following errors for the system disk (xvda2): [101980.903416] EXT4-fs error (device xvda2): ext4_ext_find_extent:732: inode #525418: comm apt-get: bad header/extent: invalid extent entries - magic f30a, entries 12, max 340(340), depth 0(0) [101980.903473] EXT4-fs (xvda2): Remounting filesystem read-only I have created new versions of the system disk. The same thing always happens. This, and the fact that the disk is ultimately on a RAID1, leads me to preclude a hardware disk error. The only obvious distinguishing feature of this domU is the presence of nfs-kernel-server, so I suspect that. Its exports file looks like this: /exports/users 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/media/music 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/media/pictures 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/opt 192.168.0.0/255.255.248.0(rw,sync,no_subtree_check) /exports/users and /exports/opt are LVM2 volumes from the same volume group as the system disk. /exports/media is an EXT2 volume. (There is an issue where clients see /exports/media/pictures as being a read-only volume, which I mention for completeness.) With the exception of the read-only problem, the NFS server appears to work correctly under light load for several hours before the "invalid extent" problem occurs. There are no helpful entries in /var/log. All of a sudden, no more files are written, so you can see when the disk was remounted read-only, but there is no indication of what the cause might be. Can anyone help me with this problem? Steve

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