Before starting the game committed memory is reported as 1/8 GB in Task Manager -> Performance -> Memory
Right after starting the game committed memory is reported by Task Manager as 6/8 GB - unusual high value for just one process (DayZ) to cause this.
I was Not using any startup parameters.
(Some say that -malloc=system would help, I did not tried yet)
Just starting the game on the machine where this bug is reproducible.
This is related to memory leak problem most players has. Game starts at 1.5gb ram usage and crashed at 2.59gb ram usage. A hotfix on the way and this problem is known to developers already. We only need a bit patience.
I was saying about committed memory, not in use memory, there is a little difference.