I’m running Elixir/Phoenix in a VirtualBox instance. After a short period of time (typically 5 minutes or so), Elixir quits with this output: Monotonic time stepped backwards! Previous time: 2140883699436 Current time: 2140883692221 [os_mon] cpu supervisor port (cpu_sup): Erlang has closed [os_mon…

This was indeed an issue with VirtualBox and it has been fixed ( #22334 (VM clock goes backwards => fixed in svn) – Oracle VirtualBox ). Waiting for a new VirtualBox release now.

VirtualBox 7.1.8 has been released on April 15 2025 and fixes the issue: Changelog – Oracle VirtualBox Change Log

Elixir Crashes in Virtualbox with monotonic time message

Questions & Help Questions

itopiz April 28, 2025, 7:22am 21

VirtualBox 7.1.8 has been released on April 15 2025 and fixes the issue:

Changelog – Oracle VirtualBox
Change Log