System keeps locking up totally. Logs suggest memory issues. Recently did a fresh install of Ubuntu 20.04. Was previously running Ubuntu 18.04.4 (kernel 5.3 i think?). Never had issues previously, running since ~December 2019, no issues. Now I’m getting total lock ups. Sometimes theres an error log. Sometimes not. I’m doing genomics data analysis so usually running cli programs leveraging R.
I made no hardware changes to my system. Just a fresh install of Ubuntu 20.04 about 2 weeks ago. My 18.04 install was chaos with a patchwork of conflicting dependencies and it was frustrating so I wanted a fresh start… oh how naive of me
- scythe mugen 5 rev.b cpu cooler with noctua fan @ 100% (never goes over ~60C)
- b450m-pro4 (just updated to latest bios & microcode, still issues)
- 64GB DDR4 2666mhz
- Corsair CX550M PSU
- a couple nvme ssds
- quadro p620 in a chipset x4 slot b/c I only need basic display (proprietary drivers)
Some current BIOS settings:
- Stock CPU voltage and clocks, no XFR
- DDR4 2666 1.2v stock timings (previously running 2933 @1.35v in 18.04.4 without issue… lowered to 2400 still issues)
- AER enabled
- IOMMU enabled
- CSM disabled
- SVM mode enabled
- C-states disabled
I’m running a python3 program leveraging a couple packages: R, numpy, rpy2. I really don’t think it’s the issue as it’s locking up randomly when running the program, not consistently at the same step of analysis. Program is single threaded, not loading the CPU much at all. Memory usage is low, maybe 10GB at most.
This really seems like a software thing seeing as everything was fine under 18.04.4. Or maybe it’s hardware degradation? Seems really unlikely. I never ran crazy voltages or temps on anything.
Is there a better way to log what’s going on?
I suppose the “smartest” solution is to go back to 18.04.4?