Ryzen lockup on bhyve was (Re: new Ryzen lockup issue ?)

[Nimrod Levy]

I'm not using any FreeBSD VMs, only on the bare metal host.  The VM
instance is CentOS.  The network to the VM is a tap bridge.

On Fri, Feb 23, 2018 at 3:44 PM, Mike Tancsa <mike at sentex.net> wrote:

> On 2/23/2018 3:33 PM, Nimrod Levy wrote:
> > After a couple of hours of running the iperf commands you were testing
> > with, I'm unable to duplicate this so far.
> >
> > I'm running with FreeBSD stable from 17-Feb with the commits noted
> > in https://reviews.freebsd.org/D14347
> > <https://reviews.freebsd.org/D14347> pulled in.
> >
> > I've also lowered the memory clock and disabled c-states in the bios.
> >
> > The bhyve VM is running CentOS.
> >
> > The system has been up for over 6 days and has been running the iperf3
> > loop for over 2 hours.
> >
> > The hardware is an Asus prime B350-Plus with a Ryzen 5 1600 and 32G of
> RAM.
>
> Hmmm, Interesting. Thank you for testing. I have a slightly different
> chipset (X370-PRO).  Wouldnt think that would make a difference. And
> considering the Epyc also crashes-- although that takes a LOT longer, I
> am not sure whats going on.
>
> There is yet another BIOS update for this board. So trying with that.
> The vmm driver does report things a little different, so we will see
>
> ivhd0: <AMD-Vi/IOMMU ivhd with EFR> on acpi0
> ivhd0: Flag:b0<IotlbSup,Coherent>
> ivhd0: Features(type:0x11) MsiNumPPR = 0 PNBanks= 2 PNCounters= 0
> ivhd0: Extended features[31:0]:22294ada<PPRSup,NXSup,GTSup,IASup> HATS =
> 0x2 GATS = 0x0 GLXSup = 0x1 SmiFSup = 0x1 SmiFRC = 0x2 GAMSup = 0x1
> DualPortLogSup = 0x2 DualEventLogSup = 0x2
> ivhd0: Extended features[62:32]:f77ef<USSup> Max PASID: 0x2f
> DevTblSegSup = 0x3 MarcSup = 0x1
> ivhd0: supported paging level:7, will use only: 4
> ivhd0: device range: 0x0 - 0xffff
> ivhd0: PCI cap 0x190b640f at 0x40 feature:19<IOTLB,EFR,CapExt>
>
> The load also matters. Try with 2 FreeBSD instances. I am not able to
> quickly crash with just one.
>
>         ---Mike
>
>
>
> --
> -------------------
> Mike Tancsa, tel +1 519 651 3400 x203
> Sentex Communications, mike at sentex.net
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> Cambridge, Ontario Canada
>