Are you monitoring processor utilization? 2 systems like you describe could tax a host. Maybe it is cpu starvation?
On May 18, 2016 7:47:11 AM PDT, Colin Godsey <crgod...@gmail.com> wrote: >I’ve been running a dual gaming VM rig (2x dedicated GPU) for a little >bit >now, and everything works perfectly except when both VMs are under >load, >after an hour or so I get a hard crash and/or reboot. It will either >reboot >itself, or will hang so bad the physical ‘reset’ button on the box >doesnt >work. > >There is 0 evidence in the linux logs about the crash, I literally just >see >one of a few standard cron jobs as the syslog, then the next line is >the >kernel boot/start-up. Only real evidence I get is that- rarely I can >hear >windows crash first. Or windows will crash and Ill get maybe another >second >or 2 of ’top’ before the whole system goes down. I find it extremely >odd >that there’s some sort of (albeit fast) degradation, but absolutely >nothing >interesting in the logs. > >So, I’m pretty sure it’s something hardware related- either PSU or my >mobo >is crap and is underpowered somewhere. During load, there are about 5 >drives, 2 GTX GPUs, and GBe (~200mbps) all under constant load, so it >seems >likely it could be something chipset related. > >*So my question is really: is there ANY kind of kernel/vfio software >level >issue that could cause this crash? Or does this just sound like >hardware?* >I’ve tried several different power configurations at this point, I just >want to be as sure as possible it’s hardware before i start replacing >more >things =\ > >This is an up to date Ubuntu Xenial, not really running anything >special. >I’ve gotten away with running my VMs almost as pure as possible, no >funny >workarounds or anything. OVMF, Windows 10, hyper-v flags. Skylake i7 @ >z170M. > > >------------------------------------------------------------------------ > >_______________________________________________ >vfio-users mailing list >vfio-users@redhat.com >https://www.redhat.com/mailman/listinfo/vfio-users
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