Can`t find the reason why RAM degrades. Used htop, never can find a clue. It always been free about 30 MB. The problem started about month ago. Router stops responding until restart about two weeks due to memory loss.
I build image myself and upgrade every month or so. No changes in configuration. Has anyone experencied something like this on rt2880?
Can not find what is "eating" RAM
Sounds like the same issue. If you don't see any processes consuming the memory then it is a kernel memory leak.
In my case the reboot was even after only 5-10 hours. The impact seems to depend also on the connected devices, in my case it was a Dyson fan, which seemed to make it even worse.
Right now I'm running 3 days without any new memory reported by the kernel memory leak detector, so it seems that it is solved for good with my patch.