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Thread: Custom kernel - less RAM?!?

  1. #1
    Join Date
    Oct 2007
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    UK
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    108
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    Ubuntu 7.10 Gutsy Gibbon

    Custom kernel - less RAM?!?

    I just compiled a new kernel. Everything is working fine but my system memory went down from 1024 to 885. I don't have any idea why. Any suggestions/experience?
    Dell Inspiron 6400 - OS's: Debian Etch, Ubuntu, Microsoft WinXP
    CPU: Intel Core Duo T2400 1.83GHz
    VGA: ATI x1400 256MB
    Ram: Samsung 1024MB 533MHz

  2. #2
    Join Date
    Aug 2007
    Location
    Kottawa, Sri Lanka
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    7,387
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Custom kernel - less RAM?!?

    Did you by any chance disable high memory support?
    Think carefully before executing commands containing "rm", especially "sudo rm -rf ", if you require more information concerning this matter, read this.
    I am an experimenter, give me the most stable OS and I can make it unstable in a few hours.

    C == seriously fast == FTW!

  3. #3
    Join Date
    Oct 2007
    Location
    UK
    Beans
    108
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Custom kernel - less RAM?!?

    Yes but I have less than 4 GB - just 1 GB of ram so it can be off, right?
    Dell Inspiron 6400 - OS's: Debian Etch, Ubuntu, Microsoft WinXP
    CPU: Intel Core Duo T2400 1.83GHz
    VGA: ATI x1400 256MB
    Ram: Samsung 1024MB 533MHz

  4. #4
    Join Date
    Aug 2007
    Location
    Kottawa, Sri Lanka
    Beans
    7,387
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: Custom kernel - less RAM?!?

    Quote Originally Posted by KOTAPAKA View Post
    Yes but I have less than 4 GB - just 1 GB of ram so it can be off, right?
    Not in my case(and it may be in yours), I have 1Gb of RAM and in my attempts to be as minimal as possible I also turned high memory support off and when I booted the kernel I only had 800+Mb of RAM, turning on high memory support fixed it, it should do the same in your case.
    Think carefully before executing commands containing "rm", especially "sudo rm -rf ", if you require more information concerning this matter, read this.
    I am an experimenter, give me the most stable OS and I can make it unstable in a few hours.

    C == seriously fast == FTW!

  5. #5
    Join Date
    Oct 2007
    Location
    UK
    Beans
    108
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Custom kernel - less RAM?!?

    Quote Originally Posted by PmDematagoda View Post
    Not in my case(and it may be in yours), I have 1Gb of RAM and in my attempts to be as minimal as possible I also turned high memory support off and when I booted the kernel I only had 800+Mb of RAM, turning on high memory support fixed it, it should do the same in your case.
    10x mate. That did it. Really really thank you. I had compiled that kernel about 4 times now wondering why this issue arises.
    Dell Inspiron 6400 - OS's: Debian Etch, Ubuntu, Microsoft WinXP
    CPU: Intel Core Duo T2400 1.83GHz
    VGA: ATI x1400 256MB
    Ram: Samsung 1024MB 533MHz

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