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Thread: Linux APIC Code Prepares For A Major Overhaul

  1. #1
    Join Date
    Jan 2007
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    14,836

    Default Linux APIC Code Prepares For A Major Overhaul

    Phoronix: Linux APIC Code Prepares For A Major Overhaul

    The x86 APIC subsystem within the Linux kernel is beginning the process of a major overhaul with the Linux 3.17 kernel...

    http://www.phoronix.com/vr.php?view=MTc2MTk

  2. #2
    Join Date
    Dec 2011
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    2,054

    Default What is this good for?

    What is this good for?

    Why is it desirable that it supports hotplugging?

  3. #3
    Join Date
    May 2012
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    817

    Default

    Quote Originally Posted by uid313 View Post
    Why is it desirable that it supports hotplugging?
    The answer is in your question. It's about how the system interacts with hot hardware - there's many usecases where people accidentally burn the keyboards, video cams etc and can't plug/use them anymore, now even if they're on fire you can still "hotplug" them to your computer. It also enables pyromaniacs to use computers productively. In fact this feature can save lives, for example if there's a fire in your house and your keyboard is burning you can still use it to call 911 thru the internet.

  4. #4
    Join Date
    Feb 2014
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    4

    Default

    Think Business class laptops that can dock and undock. This will let you have the flexibility to perform that action and do proper device rediscovery.

  5. #5
    Join Date
    Aug 2011
    Posts
    102

    Default

    Well, you can hotplug CPUs in some cases (some cases being in VMs generally) which Linux supports... why not support hotplugging for everything else?

  6. #6
    Join Date
    Apr 2010
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    739

    Default

    FYI, I'm vanishing for 2 weeks into my annual kids summer camp kitchen duty^Wvacation, while you folks are drooling at KS/LinuxCon But HPA will have a look at the hopefully zero fallout until I'm back.
    *Never* a good way to sign off an email... that's pretty much guaranteed to invoke Murphy's Law...

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