Hello. I'm using linuxcnc 2.8.4 RTAI i386 version.
My problem is when I'm trying to load huge file (800MB) OOM kills linuxcnc because RAM is ran out. I turned on SWAP (9gb)
and this didn't help.
I have 4GB RAM installed but linux kernel sees only 2.8GB
Code:
optimus@optimus:~$ sudo grep -i memory /var/log/dmesg
[ 0.000000] initial memory mapped : 0 - 01800000
[ 0.000000] Base memory trampoline at [c0098000] 98000 size 16384
[ 0.000000] init_memory_mapping: 0000000000000000-00000000377fe000
[ 0.000000] Early memory PFN ranges
[ 0.000000] PM: Registered nosave memory: 000000000009c000 - 000000000009d000
[ 0.000000] PM: Registered nosave memory: 000000000009d000 - 00000000000a0000
[ 0.000000] PM: Registered nosave memory: 00000000000a0000 - 00000000000e0000
[ 0.000000] PM: Registered nosave memory: 00000000000e0000 - 0000000000100000
[ 0.000000] PM: Registered nosave memory: 0000000020000000 - 0000000020100000
[ 0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[ 0.000000] Memory: 2921108k/2981888k available (3495k kernel code, 50372k reserved, 1237k data, 416k init, 2063664k highmem)
[ 0.000000] virtual kernel memory layout:
[ 0.000428] Initializing cgroup subsys memory
[ 0.865040] Freeing initrd memory: 14268k freed
[ 1.250880] Freeing unused kernel memory: 416k freed
optimus@optimus:~$
Please help me to enable the rest of 4GB of RAM for this kernel.
