Re: Superpages and VMware ESXi 3.5u4 crashes

On Thu, Sep 24, 2009 at 2:30 AM, Peter Kieser <peter_at_wingless.org> wrote:

> Hello,
>
> FreeBSD 8.0-RC1 on VMware ESXi 3.5u4, under moderate load (I was building
> mysql51-server & apache20 at the same time) the VMware ESXI _host_ system
> will crash with superpages enabled in a FreeBSD guest. Reproducible.
>
> If I disable superpages with vm.pmap.pg_ps_enabled option FreeBSD guest
> will not be able to crash the host system.
>
> Trying to figure out of this bug in VMware or a problem with my hardware.
> Host machine was up for 30 days without crashing prior to trying out 8.0.
>
> Has anyone else had problems with superpages implementation in FreeBSD
> crashing VMware ESXi 3.5? Seems like a bug in VMware and I'd like to report
> ..
>
>
I would agree that this seems like a bug in ESX.  Nonetheless, I'm curious
to know something about our your system.  What type of processor are you
using, and in particular is ESX using hardware supported nested paging?

Regards,
Alan