I am working a embedded box. It's bcm system.
When I do one specail action, it give me the warning :
"Warning: Low memory condition - consider removing some software components".
That mean No avaliable memory in RAM and system will kill one process.

However, I am sure there is about 10M bytes( 1364K Free, 708K Buffer, 8668K Cached) at that time and what the action need is not very big one memroy.
I feel, anyway, the Cached memory can be freed.
Is there some consideration during release cached memory?