Can you provide some more detail on the host-machine? What hardware, which kernel are you using, where is the kernel config coming from?
There must be something "unusual" in your setup. Henning Am Thu, 24 Oct 2019 09:38:23 -0400 schrieb Rob Miller via Xenomai <[email protected]>: > responses in-line... > > Rob Miller > [email protected] > (919)721-3339 > > > On Thu, Oct 24, 2019 at 8:12 AM Jan Kiszka <[email protected]> wrote: > > > On 24.10.19 13:46, Rob Miller wrote: > > > Pls see below > > > > > > Rob Miller > > > [email protected] <mailto:[email protected]> > > > (919)721-3339 > > > > > > > > > On Thu, Oct 24, 2019 at 6:25 AM Jan Kiszka <[email protected] > > > <mailto:[email protected]>> wrote: > > > > > > On 23.10.19 23:23, Rob Miller via Xenomai wrote: > > > > Correction, stock images work by removing the enable-kvm > > > > and *NOT > > > *adding > > > > the -no-hpet QEMU cmdline options. > > > > > > > > also latency numbers are crazy with avg being 1678.126 usec > > > > w/ > > > worst case > > > > being 15463.240usec > > > > > > > > at this point, I'm not sure which way to go: > > > > > > > > 1) do I hunt down issues in HPET failing w/ KVM mode > > > > enabled? 2) just go to dovetail > > > > 3) ??? > > > > > > Don't have a the reference image around, but I'm pretty sure > > > it would work here with QEMU > > > 4300b7c2cd9f3f273804e8cca325842ccb93b1ad (post > > 4.1) > > > and KVM from 5.3.6. At least a different image is being used > > > like > > that > > > for ages, and kernel config in xenomai-image is basically > > > derived from it. > > > > > > RJM>] Will try > > > > > > > > > For the xenomai-images check, did you use "start-qemu.sh x86" > > > as-is? > > > RJM>] Yes, my 1st failed attempts used unmodified start-qemu.sh > > > RJM>x86, > > > then I mod'd the file to remove the -enable-kvm, and it started > > > to work UNTIL also added -no-hpet, then I can't even boot up. > > > > > > > Number of host cores >= number of guest CPUs? If not, reduce -smp > > in the QEMU invocation. > > > RJM>] yup, host has 16 cores whilst guest has 4 (using the stock > RJM>images). > > > > > Oh, and don't expect any kind of determinism in these setups. KVM > > and QEMU are for functional testing only. > > > RJM>] Ah, good to know. > > > > > Jan > >
