I have created a docker file and run script, that allows me to reproduce the issue. It still takes quite a lot of time usually. This docker freezes the system in 30 minutes - 5-6 hours. I've been able to reproduce it with docker in Windows 10, xubuntu 18.04, xubuntu 18.10, opensuse tumbleweed and centos 7.
I know, that docker can have bugs too, and reproducing in docker is not exactly reproducing natively, but since these freezes also happen on 4 of my machines in native 18.04 and in VirtualBoxed 18.04 too, it's possible that the bug is not in the docker or VirtualBox.
Created attachment 281445
Testcase in docker
I have created a docker file and run script, that allows me to reproduce the issue. It still takes quite a lot of time usually. This docker freezes the system in 30 minutes - 5-6 hours. I've been able to reproduce it with docker in Windows 10, xubuntu 18.04, xubuntu 18.10, opensuse tumbleweed and centos 7.
I know, that docker can have bugs too, and reproducing in docker is not exactly reproducing natively, but since these freezes also happen on 4 of my machines in native 18.04 and in VirtualBoxed 18.04 too, it's possible that the bug is not in the docker or VirtualBox.