My server has the hard occasional lockup. Replaced RAM, CPU, cables etc but it can run fine for a week, or lockup a couple of times a day. In every instance there is never any indication on the syslog of what caused it.
It locked again today. Looking at syslog I see some entries I've never started before. it's either an unraid triggered dump/trace, or something else. I've attached the portion here in the hope someone can translate it into english.
It all starts with: