swap

First: When I`m upload iso files to the server ( ssh / web interface ) I have a situation in which not used SWAP. Screenshot: Second: RAM don`t clear, when I finished upload iso`s ( this problem I solved by command " echo 3 > /proc/sys/vm/drop_caches " ) Can anybody help me with this?

Hi all, I encountered stability problems with swapping on ZFS (swap on zvol). It panics repeatedly in minutes with alternating errors on 4.2.6-1-pve swapper/5: page allocation failure General Protection fault (multiple times) Blocked process kswapd Using e.g. exclusively zram or another...