Created attachment 840209 [details]
boot-no-kdump.log

The latest kernel update

kernel-default-5.3.18-lp152.33.1.x86_64 (33.1)

produces hard lockup crashes after some minutes up to an hour of working.

Can't see any error messages in the logs.
Also when booting the kernel with enabled kdump, the kernel doesn't crash any
longer.

The older kernel package "kernel-default-5.3.18-lp152.26.2.x86_64" (26.2) works
without problems (also without kdump enabled).

I'm attaching 2 boot journal logs. One with enabled kdump, the other with
disabled kdump which locked up.

If I can provide some more information please ask.

Thanks
Markus