Em 14-11-2013 14:18, InterNetX - Robert Garrett escreveu:
> The issue you outlined below is not an openbsd issue, this is a kvm
> issue. and depends greatly on the version of linux/whatever you are
> using. The interrupt remapping you are talking about is either a bios
> issue (likely) or an issue with the hypervisor.
>
> it sounds like to me you are using or attempting to use SRIOV.
>
> all of the issues that you mentioned are still relevent even with
> "safe interrupts", as well as several you did not mention.
Robert,
I do believe it is a specific issue with OpenBSD, because using the
same hypervisor I can do pci passthrough, using the same versions,
hardware, etc, to other operating systems using interrupt remapping.
I do have indeed SRIOV enabled on my bare metal bios. The thing is
that kvm specifically warns me that the guest do not support interrupt
remapping, when using openbsd only. As I told before, it is not a
problem for me right now, since I enable the unsafe interrupt assignment
and the OS works normally.
Also, David, thanks for pointing out the patch, because since I
applied it, I did not experienced anymore lockups (so far). I am betting
it was indeed the problem.
--
Giancarlo Razzolini
GPG: 4096R/77B981BC
