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kernel posts

Filed under: Humor, Software

Mac OS X kernel panic screensaver - let the pranks begin


What's better than a Dashboard widget that can display a Mac OS X kernel panic? A full-on screensaver that can simulate one, of course! Mark Johns of Doomlaser has built an eerily realistic kernel panic screensaver, right down to the slowly dropping grey shade of despair, that will surely induce panic in the hearts of its victims in the way that only the haunting question of "oh crap, did I save?!" can. For a nice touch of style, it can even pause iTunes to really stop the show.

Watch a demo of the screensaver here in this post, or head over to YouTube for the original. Finally, you can snag your own pranktastic copy from Doomlaser.

Filed under: OS, Software, Productivity

Use Mac OS X keyboard and shortcuts on Windows

If you're jonesing for your Mac OS X keyboard shortcuts to work on Windows, or if you just can't give up Apple's keyboard while using Boot Camp, the AppleK Pro keyboard driver for Windows might just be your fix. This little driver allows you to use most Mac OS X shortcuts (such as cmd - shift 3/4 for screenshots and cmd - opt - esc for the Windows Task Manager), and you can even plug in an Apple USB keyboard to keep on truckin' (great for the Boot Camp users in the audience).

My big gripe with AppleK Pro however (besides the logo), is its outlandish $25 price. $5 - sure. $10 - I'd consider it (if I had to use Windows, that is). Even $15 might be reasonable, as long as you throw in the answer to the meaning of life or something. But $25 for some keyboard shortcuts? I might as well buy a new keyboard - at least then I could have one of those cool Matrix-style, multi-keyboard setups and act like I can actually see things when I stare at scrolling Klingon-ish code. Maybe these guys should hook up with MacZOT to cut the Mac shortcut addicts a break.

Filed under: OS, Open Source, UNIX / BSD

Clarification: Apple has not closed the Intel-based Darwin kernel

OSNews is reporting that Ernest Prabhakar, Apple's Open Source and Open Standards product manager, has stated in the Fed-Talk mailing that Apple has not actually closed Mac OS X's Darwin kernel for the Intel version of the OS; they simply haven't released it yet. Speculation about Apple closing the kernel arose from the fact that other non-kernel Darwin sources actually have been released, and the previous PowerPC-based kernel is still available as open source as well.

Ernest wanted to make sure that tech media didn't confuse 'speculation' with 'fact'. A good lesson we all could benefit from.

Filed under: OS, Open Source, Apple

Apple to users: Don't hack your Intel Mac

Ah, the halcyon days of OS X, they seem to be coming to a close. What the hell am I talking about? Why, Apple's decision to close the kernel of OS X on their new Intel machines. This means that no longer can you recompile, slim down, or otherwise monkey around the kernel of OS X (if you are on Intel hardware).

Why would Apple suddenly turn very proprietary when they were yelling Open Source from the rooftops not so long ago (and you can still hack your kernel on pre-Intel hardware)? One word: piracy. Apple doesn't want some enterprising young hooligan to get OS X running on other Intel hardware.

Let's hope that Apple has a change of heart, since they themselves say that Darwin (the open source project that covers OS X's kernel) is in 'flux.'

Thanks, Eliot!

Filed under: Analysis / Opinion, Hardware, Software

Apple needs to fix their PowerBook DL trackpad software

Ever since I picked up this 15" PowerBook DL (Dual Layer SuperDrive) about a month ago, I have occasionally run into situations where I see the kernel_task in Activity Monitor spiking to about 60% CPU usage, grinding my machine nearly to a halt and making it generally unusable until I restarted. None of the typical maintenance tasks seemed to help matters, and since I was planning on wiping the book clean this weekend for the upcoming semester anyway, I simply chalked it up to some little utility I had been playing around with. Oh the troubles I go through for you readers...

Well after wiping the book this morning and getting everything reinstalled (huge time-saver tip: keep all your 3rd party apps in an Applications folder in your Home folder, this way OS X can still find them, yet it's easy for you to back them all up), I found I was still having these kernel_task issues - even before I installed all my extras. Getting frustrated, I finally decided to do some googling and discovered that, once again, MacOSXHints had already gotten to the bottom of this issue.

As it turns out, this kernel_task usage problem is a result of Apple's own trackpad software horribly misbehaving on these latest PowerBooks, even on a 100% clean system, which I verified this morning. MacOSXHints did find a 3rd party solution in the form of SideTrack, a shareware trackpad software replacement for PowerBooks and iBooks that has a few neat tricks up its sleeve. While I can verify SideTrack fixed the issue on my PowerBook, it alters the behavior of two-finger scrolling and, of course, costs money ($15). I also can't stand some weird thing it does to mouse movement and acceleration; it feels and acts differently than Apple software, and these two dings caused me to uninstall it and take my chances with keeping kernel_task happy again.

Moral of the story: Apple needs to fix their PowerBook trackpad software, and soon. This kernel issue destroys productivity, usability and battery life, and also causes a PowerBook to get pretty hot. If you're running into issues like this (or any other kind), I urge you to add your voice to the pile at apple.com/feedback.

Tip of the Day

Use Spotlight as a reference tool. Type any word in the Spotlight box and one of the top entries will be a definition. Click on it, and it will bring up the dictionary application to check the word in either the dictionary, thesaurus, Apple database, or Wikipedia.


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