Attempting to Get Xen FreeBSD Dom0 working

[Miguel Clara]

I was just trying too boot  Freebsd Xen dom0 on a laptop but I just get a
black screen after the boot process....

any idea what it could be?

the system boots fine wihtout loading "boot/xen", I'm not sure how to get
more info with the black scren!

thanks


Melhores Cumprimentos // Best Regards
-----------------------------------------------
*Miguel Clara*
*IT - Sys Admin & Developer*
*E-mail:    *miguelmclara at gmail.com
         www.linkedin.com/in/miguelmclara/

On Tue, Dec 9, 2014 at 7:17 PM, David P. Discher <dpd at dpdtech.com> wrote:
>
> ah, sorry missed that.   Will try that today.
>
> AHCI lasted over night with MSI off.   Something I noticed, is that when
> the AHCI bus was timing out, it looked like the Xen Kernel was re-scanning
> the PCI bus.  (Sorry, didn’t save these logs). I’ve love to dig into this
> further.
>
> Please let me know what/where to add some debugging code.
>
> -
> David P. Discher
> http://davidpdischer.com/
> AIM: DavidDPD | Y!M: daviddpdz
> Mobile: 408.368.3725
>
>
>
> On Dec 9, 2014, at 12:27 AM, Roger Pau Monné <roger.pau at citrix.com> wrote:
>
> > Hello,
> >
> > El 08/12/14 a les 23.45, David P. Discher ha escrit:
> > <SNIP>
> >>
> >>      Sent SIGTERM to all processes
>          │
> >>      Sent SIGKILL to all
> processes───────────────────────────────────────────────┘
> >>      Requesting system reboot
> >>      [ 1157.299205] Restarting system.
> >>      root at borg:/zdata/debian #
> >>      root at borg:/zdata/debian #
> >>      root at borg:/zdata/debian # xl create -c debian.cfg
> >>      root at borg:/zdata/debian # xl destroy debian
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      xc: error: Could not bounce buffer for version hypercall (35 =
> Resource temporarily unavailabl): Internal error
> >>      libxl: error: libxl.c:658:libxl_list_domain: getting domain info
> list: Resource temporarily unavailable
> >>      debian is an invalid domain identifier (rc=-5)
> >>      root at borg:/zdata/debian #
> >>
> >> I’m running AHCI with MSI off in the FreeBSD kernel, and so far, so
> good on that front.  The great thing is now I got the Xen console working,
> so can get the debug output.   However the bounce buffer/hypercall issue i
> would think is far more important than MSI interrupts at the monument.
> >
> > Glad to know you got it working at the end! I've already pointed this
> > out in my last email, but did you try to increase vm.max_wired even
> further?
> >
> > This usually happens when mlock in
> > freebsd_privcmd_alloc_hypercall_buffer (xc_freebsd_osdep.c) fails to
> > wire down the memory that would be used by the hypercalls.
> >
> > Roger.
> >
>
>