I have an old Celeron 400 system w/ 256MB RAM running Sarge 2.6.8-3-686.
After it's been up and running a few hours, free -lm indicates 243MB being used and only 13MB free even though I'm running icewm and almost no services.
Now, if from within this running box I init 1 to go to single user mode, the memory usage drops down to around 140MB. Here's the part I don't understand -- if I reboot into single user mode, free -lm shows only 23MB used, despite the fact that ps aux shows the same thing for both.
Anyone have any insights as to what is eating away at my machine?