Sometimes the Spark crashes and I have to force shut it off.
when I reboot I get this screen.
processor cpuxx: EM: CPUs of x-x, xx-xx must have the same capacity
Is that something to worry about?
What shall I do?
First, Please run the Field Diagnostic and share the result bundle with me: NVIDIA DGX Spark Field Diagnostics | NVIDIA
This may be a duplicate of Acpi and EM errors from kernel log during boot (capacity mismatch)
@aniculescu On my ticket (apologies that it is closed so I can’t comment there), you mentioned to reach out if we saw performance issues in conjunction with these error messages. It is anecdotal but this user reports a preference for work being scheduled to a CPU efficency core in a situation where performance is highly needed:
PersonaPlex produces choppy/unusable audio on DGX Spark (GB10) · Issue #3 · NVIDIA/personaplex
If these are only warnings then they would/should not be reported at error level in the kernel log.
The team is aware of issues with PersonaPlex and are already working on optimizing performance.
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Thanks for the reply @aniculescu. Actually I’m very happy with the PersonaPlex performance thanks to this patch by the amazing Amar Balutkar. I was able to get real-time audio performance and a very realistic full-duplex conversation. Probably the most exciting thing I’ve done with the Spark! It’s great news that NVIDIA are looking into this as well.
My comment was more about the kernel errors reported by OP. If the energy-aware scheduler (EAS) is not configured correctly then the EAS may be making suboptimal task placement decisions across the Spark’s heterogeneous CPU topology. Admittedly I don’t yet have evidence for this as I have not investigated it in depth. I’d be curious whether you’ve seen any evidence either way regarding real-world impact?
I would agree the kernel errors reported by @martinB78 are very unlikely to be the cause of the crashes.