Vouchers may expire too early when using RAM disks
We just upgraded around 10 sites from 2.4.5 to 2.5.1 and detected a strange behavior: We have created 3 voucher rolls with 2.4.5 and upgraded to 2.5.1 All of the sudden around 280 vouchers expired instantly. We deleted all voucher rolls and created (identical) new ones with 2.5.1 - and thought this solves the problem. For a few day all was fine. Today one site had a power outage and the system rebooted - and again around 280 vouchers expired. The sites without reboot are still running fine - however, the same problem occured after upgrade.
Some information about the hardware: We used APU1D4 and APU2E0 appliances.
And it is not just us having this problem, see this thread: https://forum.netgate.com/topic/162708/vouchers-getting-expired-before-remaining-time