Search Results

Search found 16947 results on 678 pages for 'kernel programming'.

Page 454/678 | < Previous Page | 450 451 452 453 454 455 456 457 458 459 460 461  | Next Page >

  • Elaboration of A quotation on 'Simple Design'

    - by HanuAthena
    An excerpt from Programming Perls: A Simple Design : Antonie de Saint-Exupery, the Fresh writer and aircraft designer, said that, *"A designer knows he has arrived at perfection not when there is no longer anything to add, but when there is no longer anything to take away."* More programmers should judge their work by this criteria. Can any one elaborate this, please? What does the author mean when he say "...TAKE AWAY"

    Read the article

  • Xen 4.1 host (dom0) with blktap disks ("tap:aio:") not connecting

    - by Manwe
    Problem using blktap with xen-4.1 running Ubuntu Precise stock kernel with dom0 xen-4.1. I get: [ 5.580106] XENBUS: Waiting for devices to initialise: 295s...290s. ... [ 300.580288] XENBUS: Timeout connecting to device: device/vbd/51713 (local state 3, remote state 1) And some syslog lines: May 17 13:07:30 localhost logger: /etc/xen/scripts/blktap: add XENBUS_PATH=backend/tap/10/51713 May 17 13:07:31 localhost logger: /etc/xen/scripts/blktap: Writing backend/tap/10/51713/hotplug-status connected to xenstore. with tap:aio: disk lines. file:/ works. disk = [ 'tap:aio:/data/root.img,xvda1,w', ] Problem exists with lucid and precises domU kernels and both guests work in Ubuntu hardy dom0 Host 64bit 2.6.24-28-xen xen-3.3 3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise

    Read the article

  • Homebrew build with different arch?

    - by StasM
    I tried to install mysql-connector-c recipe via homebrew, and it builds just fine, but produces x86_64 library: $file ~/brew/lib/libmysql.dylib .../brew/lib/libmysql.dylib: Mach-O 64-bit dynamically linked shared library x86_64 I however need i386 library for my project. I tried to give it CFLAGS and LDFLAGS like this: CFLAGS="-arch i386 -arch x86_64" LDFLAGS="-arch i386 -arch x86_64" brew install mysql-connector-c but nothing changes - it still builds x86_64 only binary. Is there any way to make homebrew build either dual arch library or i386 library? I have kernel architecture set to x86_64, if it matters.

    Read the article

  • Meaning of Bridge-Check in iptables flowchart

    - by networkIT
    In the famous iptables flow-chart what does bridge-check exactly stands for ? I couldn't find any documentation. The only clue I found was while scanning the MikroTik RouterOS documentation ( RouterOS is build upon a Linux 2.6.16 kernel ), I found this : In-interface Bridge = Checks if the input interface is a port for a bridge or is the bridge. Manual:Packet Flow Comparing both flow-charts brings clues that iptables Bridge-check might equal MikroTik In-Interface Bridge. Is this true ? Else, what might be the meaning of iptables Bridge-Check ?

    Read the article

  • Is the recent trend toward widescreen (16:9) computer monitors a plus or minus for programmers?

    - by DanM
    It's almost gotten to the point where you can't buy a conventional (4:3) monitor anymore. Pretty much everything is widescreen. This is fine for watching movies or TV, but is it good or bad for programming? My initial thoughts on the issue are that widescreens are a net negative for programmers. Here are some of the disadvantages I see: Poor space utiliziation One disadvantage of widescreens you can't argue with is that they offer poor space utilization for the amount of total pixels you get. For example, my Thinkpad, which I bought just before the widescreen craze, has a 15" monitor with a native resolution of 1600 x 1200. The newer 15.4" Thinkpads run at most 1680 x 1050. So (if you do the math) you get fewer pixels in a wider (but not shorter) package. With desktop monitors, you pay a price in terms of desk space used. Two 1680 x 1050 monitors will simply take up more of your desk than two 1600 x 1200 monitors (assuming equal dot pitch). More scrolling If you compare a 1680 x 1050 monitor to a 1600 x 1200 monitor, you get 80 extra pixels of width but 150 fewer pixels of height. The height reduction means you lose approximately 11 lines of code. That's less you can see on the screen at one time and more scrolling you have to do. This harms productivity, maybe not dramatically, but insidiously. Less room for wide panels Widescreens also mean you lose space for wide but short panels common in programming environments. If you use Visual Studio, for example, your code window will be that much shorter when viewing the Find Results, Task List, or Error List (all of which I use frequently). This isn't to say the 80 pixels of extra width you get with widescreen would never be useful, but I tend to keep my lines of code short, so seeing more lines would be more valuable to me than seeing fewer, longer lines. What do you think? Do you agree/disagree? Are you now using one or more widescreen monitors for development? What resolution are you running on each? Do you ever miss the height of the traditional 4:3 monitor? Would you complain if your monitors were one inch narrower but two inches taller?

    Read the article

  • How do you iterate through each email in your inbox using python?

    - by djblue2009
    I'm completely new to programming and I'm trying to build an autorespoder to send a msg to a specific email address. Using an if statement, I can check if there is an email from a certain address in the inbox and I can send an email, but if there are multiple emails from that address, how can I make a for loop to send an email for every email from that specific address. I tried to do use this as a loop: for M.search(None, 'From', address) in M.select(): but I get the error: "can't assign to function call" on that line

    Read the article

  • Why does my macbook pro keep freezing?

    - by mac
    Once in a while my macbook pro 10.8.2 freezes for a couple of seconds, this is really annoying. Mouse gets frozen, I can't move it, and screen gets frozen. These are the last messages from the kernel, how to solve this? Sandbox: sandboxd(38380) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38410) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38429) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38463) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38495) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38513) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38550) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38581) deny mach-lookup com.apple.coresymbolicationd Sandbox: sandboxd(38599) deny mach-lookup com.apple.coresymbolicationd CODE SIGNING: cs_invalid_page(0x1000): p=38605[GoogleSoftwareUp] clearing CS_VALID Sandbox: sandboxd(38632) deny mach-lookup com.apple.coresymbolicationd

    Read the article

  • Is Odersky serious with "bills !*&^%~ code!" ?

    - by stacker
    In his book programming in scala (Chapter 5 Section 5.9 Pg 93) Odersky mentioned this expression "bills !*&^%~ code! In the footnote on same page: "By now you should be able to figure out that given this code,the Scala compiler would invoke (bills.!*&^%~(code)).!()." That's a bit to cryptic for me, could someone explain what's going on here?

    Read the article

  • Why Emacs/Vim/Textmate? Isn't Xcode good enough?

    - by ivanTheTerrible
    Hi I mostly do C++, Objective-C programming. And I found Xcode plus an auto completion/macro plugin (Completion Dictionary) quite adequate. However, all people seem to praise over their pure text editors. I tried Textmate for a bit; liked its simplicity but dislike its files/framework handling. Am I missing something here? Or, do Vim or Emacs have auto-completion as good as Xcode?

    Read the article

  • ASP.NET Books: WROX vs Unleashed

    - by Sahat
    I am trying to decide which ASP.NET book should I buy. I've narrowed my choices down to these two books: ASP.NET 3.5 Unleashed (44 reviews / 4-stars) Beginning ASP.NET 3.5 WROX Programming (48 reviews / 4.5 stars) Which book would you recommend me and why? I am new to ASP.NET, but I am not entirely new to Web Development.

    Read the article

  • taking integer input in java

    - by ruchir patwa
    I am actually new to java programming and am finding it difficult to take integer input and storing it in variables...i would like it if someone could tell me how to do it or provide with an example like adding two numbers given by the user..

    Read the article

  • Why is process not being displayed by TOP

    - by drN
    I am running a Mathematica script (this question probably doesn't fit in Mathematica.SE however) and I know that it generally takes up a lot of RAM and loads up my cores. However, althought pgrep MathKernel is showing a pid, I find that top doesn't show this in the top processes, although I notice that it is taking up about 2.25GB of the 8GB available to me. pmap -x my_process_id total kB 2243132 1907404 1892108 AND ps aux | grep MathKernel dnaneet 20837 12.6 23.3 2234944 1907404 pts/1 Sl 09:23 8:01 /share/apps/mathematica/8.0.4/SystemFiles/Kernel/Binaries/Linux-x86-64/MathKernel -runfirst $TopDirectory="/share/apps/mathematica/8.0.4" -script ./dcm_10micrometer_2x -- ./dcm_10micrometer_2x ps aux shows that the process is taking about 12% (In asterisks) dnaneet 20601 0.0 0.0 68264 1660 pts/1 Ss 09:15 0:00 -bash **dnaneet 20837 12.2 23.3 2234944 1907404 pts/1 Sl 09:23 8:01 /share/apps/mat** dnaneet 21922 0.0 0.0 65604 948 pts/1 R+ 10:29 0:00 ps -aux Did this process fail and is the MathKernel just lingering?

    Read the article

  • How to calculate a measure of a total error in this clustering

    - by Vafello
    I have the following points and clustering of data S1. Can anyone tell me how to calculate the total error associated with this clustering? I know it's not a strictly programming question, but I need it for my algorithm. I think the answer should be 4/3 but I have no idea how to calculate this. Can anyone help me? x1= (2.0,1.0) x2= (2.0,2.0) x3= (1.0,2.0) S1={ x1, x2, x3 }

    Read the article

  • Entire filesystem restore from rdiff-backup snapshot

    - by atmosx
    I'm trying to make a complete system restore from an rdiff-backup. The cli for backing was: rdiff-backup --exclude-special-files --exclude /tmp --exclude /mnt --exclude /proc --exclude /sys / /mnt/backup/ebox/ I created a new partition mounted the partition at /mnt/gentoo and did: rdiff-backup -r /mnt/vol2 /mnt/gentoo However when I try to chroot to this system (following gentoo's manual, which means mounting /dev/ and /proc) I get the following error: chroot: failed to run command/bin/bash': No such file or directory` All this takes place on a Parallels (virtual machine) Debian installation. Any ideas on how to proceed in order to fully restore the system? Best Regards ps. /mnt/gentoo/bin/bash works fine if I execute it. All files and permissions are in place rdiff-backup seems to work just fine. However the system cannot neither boot (exits with kernel panic - cannot find init) or be chrooted.

    Read the article

  • Implementing the procducer-consumer with .NET 4.0 new

    - by bitbonk
    With alle the new paralell programming features in .NET 4.0, what would be a a simple and fast way to implement the producer-consumer pattern (where at least one thread is producing and enqueuing task items and one other thread executes (dequeues) these tasks). Can we benfit from all these new APIs? What is your preferred implementation of this pattern?

    Read the article

  • Windows 8 safe mode grub 2

    - by Adam Smith
    I need to boot into safe mode in Windows 8 Ultimate to un-install Avira as this is not supported in windows 8. The problem is I have also installed Ubuntu 12.04 and from the grub 2, I do not get the option to boot into windows 8 safe mode. I do not have the CD/DVD of windows 8. Also, "pressing f8 as soon as you press enter after selecting win8 kernel " or for that matter any other key (Shift+F8, F2, F12 ) did not help. Is there a way to get an option in the boot menu to boot into Windows 8 safe mode? Found some similar posts, but could not find any relevant answers. Thanks

    Read the article

  • Using OpenGL Without X-Window System

    - by user366250
    Hell every body , i am newbie in linux programming ( Not Windows ) . i want to know how i can using OpenGL on Linux Platform Without X-Window System , can i send OpenGL Graphics Directly to Framebuffer Device ?! There Is Project Named DirectFB ( Direct FrameBuffer ) . with DirectFB We can do this but DirectFB needs for driver for each hardware and i want to user a graphic card that only have linux driver . what is your suggestion to Me . Thanku.

    Read the article

  • C++: GUI libraries for embedding into an interpreter

    - by sub
    I've got my interpreter up and running - quite bug-free and stable for now - now I want to add some visual options to my language to play around. What is a good GUI library easy to use and mainly easy to embed and "link" to my programming language? What general rules do I have to follow? I'm currently on XP with Microsoft Visual Studio 2010.

    Read the article

  • export block device over network without root

    - by dschatz
    I'm trying to export a file as a block device over the network. I do not have root access on the machine where the file exists. I do have root access on the machine(s) where I will mount the block device. I've seen ATA-Over-Ethernet and ISCSI but there don't seem to be any implementations which allow me to export the block without root at least (some even require kernel modules). Is there an implementation of either of these or some other protocol that doesn't require root? Perhaps I can tunnel ethernet over IP to do this?

    Read the article

  • Sanitizing MySQL user parameters.

    - by Tom
    What are the dangerous characters that should be replaced in user input when the users' input will be inserted in a MySQL query? I know about quotes, double quotes, \r and \n. Are there others?(I don't have the option of using a smart connector that accepts parameters so I have to build the query myself and this will be implemented in multiple programming languages, including some obscure ones so solutions such as mysql_real_escape_string in PHP are not valid)

    Read the article

  • librrd link problem

    - by farka
    i use rrd (graphic programming ) under rrdtool, i have installed; and i rund gcc gcc -I/usr/include -I/usr/local/include -L/usr/lib -L/usr/local/lib -lrrd -o myprog test.c myprog is execute file and test.c ist testprogram who i use function rrd_create from libary but gcc put out error like this: /usr/bin/ld: cannot find -lrrd why!!!!

    Read the article

  • How can I tell what script a website uses or is built with? Could it be an 'off the shelf solution'

    - by ebs
    Hi. There is an excellent website that I would like to emulate some of the characteristics of in a website that I hope to develop. (I do not intend my site being in competition with them - mine would be more of a social networking site). Can anyone tell me if it is possible to detect which script and platform is being used on www.shoutlife.com? I have very little programming or website building experience so am considering using phpfox as my solution. Thanks in advance. EBS

    Read the article

< Previous Page | 450 451 452 453 454 455 456 457 458 459 460 461  | Next Page >