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Avnet SmartEdge IoT Gateway - cgroup memory

stopje

Hi,

 

On avnet Raspbian system (as delivered with IoT gateway) I have hard time to enable cgroup memory.

I added to cgroup_enable=memory cgroup_memory=1 /boot/cmdline.txt with no effect.

Is there any special trick needed?

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  • I found interesting thing.

    my cmdline.txt look like this:

     

    cat /boot/cmdline.txt

    dwc_otg.lpm_enable=0 console=tty1 rootfstype=ext4 rootwait console=serial0,115200 root=/dev/mmcblk0p2 fsck.repair=yes cgroup_enable=memory cgroup_memory=1 elevator=deadline

     

     

    but

    dmesg | grep Kernel

     

    shows:

    [    0.000000] Kernel command line: dwc_otg.lpm_enable=0 console=tty1 rootfstype=ext4 rootwait root=/dev/mmcblk0p2 fsck.repair=yes elevator=deadline

     

    I am confused. From where is it coming?

     

  • in reply to stopje

    Well, I think I found the problem: the one who parses cmdline.txt does not like empty lines before the valid cmdline: I have that:

    # comment 
    # <previous cmmdline line commented out>
      
    # comment 
    <new cmdline>

    changing it to:

    # comment 
    # <previous cmmdline line commented out> 
    # comment 
    <new cmdline>

    makes it work.

    Be careful of newline characters as they are trouble too.

    Also it is /boot/cmdline.txt.

     

    So, I would test things by adding

    disable_splash=1

    and looking at

    dmesg | grep Kernel

    like before. This will stop the multi color splash screen...

     

    Clem

Reply
  • in reply to stopje

    Well, I think I found the problem: the one who parses cmdline.txt does not like empty lines before the valid cmdline: I have that:

    # comment 
    # <previous cmmdline line commented out>
      
    # comment 
    <new cmdline>

    changing it to:

    # comment 
    # <previous cmmdline line commented out> 
    # comment 
    <new cmdline>

    makes it work.

    Be careful of newline characters as they are trouble too.

    Also it is /boot/cmdline.txt.

     

    So, I would test things by adding

    disable_splash=1

    and looking at

    dmesg | grep Kernel

    like before. This will stop the multi color splash screen...

     

    Clem

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