August 2013 - kernelnewbies@kernelnewbies.org

Application Debugging
by Robert Clove Aug. 2, 2013

Aug. 2, 2013

Hi All, It is just an Linux question. I have downloaded some linux software when i install it and then run it it shows gui and allow us to do various things. It is an open source software so we have the code also. for what is was wondering can i debug the code. Like when the gui is opened which function is executed and when i press some button on gui which function is executed. If yes please tell how,i am all new to linux . Thanks

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How many encryption file system method
by 于运超 Aug. 2, 2013

Aug. 2, 2013

hi, how many encryption file system in linux. i just known CFS、TCFS、CRYPTFS,can u tell me other new method and how does they work ,principle，what are they pros and cons.

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Career in Linux Internals and Embedded Systems
by Satya Prakash Prasad Aug. 1, 2013

Aug. 1, 2013

I am working as a software professional engineer with 12+ years experience in C/C++ on Linux platform. I have a burning desire to work on Embedded system and Linux Device Driver development - I have self practiced and learned some basics but now not sure how to proceed next. I have a PC where I have Linux OS and practice Linux Kernel development / device driver - for embedded system I self-learned 8051 and PIC16F870. But now I am hearing Raspberry PI and other new controllers would provide a good career opportunities. If I want to pursue my career in Linux Internals / Embedded systems what things should I learn or be expertise in? I have plans to buy Raspberry PI. But I don't know what projects to practice or rather what programs to write to enlighten up. I mean I am totally confused of what I should proceed learning and development? I need some direction on what should I practice and where I can get ideas and help of what projects to do. I do not wish to join any training institute cause they are professionals and costly. If a setup is required I would do it at my house and pursue further on. Can anyone please guide me accordingly - like - what I should learn for better career opportunity / what projects I should self-practice and where I can get help related to projects?

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Managing linux-next tree
by Kumar Amit Mehta Aug. 1, 2013

Aug. 1, 2013

Hi, I've been following linux-next tree and base some of my janitorial realted work on this tree. Things are fine, but I think I'm little confused with the git branching/merging stuff. Please find some of the steps that I follow to clone and update my local linux-next tree: 1. Clone the tree (once): $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git So here I've just one branch called master. To work on some code cleanup work etc, I create my private branch (see step 2 below) 2. Create my private branch based on latest tag(every now and then) $ git tag -l next-*|tail -n 1 next-20130709 $ git checkout next-20130709 $ git checkout -b July-09 So, Now i have two branches; master and July-09, and I commit any changes in July-09 branch. Later (say after some days) I fetch remote changes. 3: Fetch remote changes $ git remote update Now, I delete the old branch(let's forget about the commits that I made it to July-09 branch for a moment) and create another private branch by following the steps mentioned above in step 2. It is fine but when I invoke git command to get the status of the working tree(say master, remember I've just issued 'git remote update'), it tells me that my branch and 'origin/master' have diverged. steps, as in 4: 4: Get the information on working tree status $ git checkout master # switch back to master $ git remote update # Fetch remote updates Fetching origin remote: Counting objects: 29053, done. remote: Compressing objects: 100% (4329/4329), done. ....... ....... >From git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next * [new tag] v3.11-rc3 -> v3.11-rc3 $ git branch -D July-09 # deleting the old branch $ git branch # Left with master now * master $ git checkout next-20130801 -b Aug-01 # Creating once again a new branch $ git branch * Aug-01 <--- Currently on Aug-01 master $ git status # On branch Aug-01 nothing to commit (working directory clean) $ git checkout master # Switch back to master once again $ git branch Aug-01 * master <--- Currently on master $ git status # get the working tree status # On branch master # Your branch and 'origin/master' have diverged, <-------------------+ # and have 368 and 3227 different commit(s) each, respectively. <----+ # nothing to commit (working directory clean) So, What should I do to keep my local master in sync with the remote origin/master ? Will a 'git pull' work ? Actually I tried 'git pull', but it gave me some warning messages, hence I interrupted(CTRL-c) this in between <snip> $ git pull warning: too many files (created: 926 deleted: 310), skipping inexact rename detection warning: too many files (created: 4620 deleted: 3979), skipping inexact rename detection warning: too many files (created: 1256 deleted: 405), skipping inexact rename detection </snip> !!amit

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