Something wrong with memory: laundry done mad?

[Александр Поволоцкий]

Hello!

Several days ago, I've upgraded my server 12.1->12.2, and VM is broken 
since than.

daily graph

As you can see, memory use grows steadily, than suddenly all inactive 
memory becomes laundry, and in several more hours system hangs.

Number of processes is steady, memory usage by processes is steady, even 
ARC is shrinking under the load. I have no idea at all on who and how is 
leaking memory.

--

Alex