[mythtv-users] ATSC Unwatchable

Joseph Fry joe at thefrys.com
Wed Sep 12 02:26:00 UTC 2012


> Do you mean running a hypervisor on the machine beside MythTV, or running
> MythTV in a VM?
>
> I've been running a CentOS 6 box with software raid 5, Silicondust ATSC
> tuner, and VirtualBox with a Windows 7 VM all on the same box for months
> with no problem.  The MythTV has always been running on the base OS though,
> not in the VM.  Before that I ran a NextPVR (formerly GBPVR) instance under
> a Windows 7 VM in VirtualBox with no problems at all for well over a year.
>
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of Devin Heitmueller
> Sent: Sunday, September 09, 2012 5:55 PM
> To: Discussion about MythTV
> Subject: Re: [mythtv-users] ATSC Unwatchable
>
> On Sun, Sep 9, 2012 at 4:47 PM, Keith Wait <kwait at alumni.rice.edu> wrote:
> > Here's an overview of my setup:
> > xbmcbuntu (based on oneiric), running kernel 3.0.0-22-xen-dom0 (so
> > running the xen hypervisor).
>
> Wow, please seriously don't tell me you've been running a hypervisor all
> this time and are just mentioning this now.  If so, then you've just
> engaged
> in a colossal waste of my time.
>
> Hypervisors are not supported, in particular on the backend.  They screw
> with the PCI latency, causing packets to get dropped.
>
> Think it's not the hypervisor?  Prove it.  Do a stock install of the OS
> without the hypervisor and report back in if you're still having problem.
>
> As an intermediate step, you may also wish to try a *current* LiveCD with
> the same 3.0.0 kernel but not in hypervisor mode.  At least that lets you
> do
> an apples-to-apples comparison with the same kernel revision.
>
>
First, don't top post.

Second... Xen works differently than VMware or  Virtualbox... both of those
operate ON TOP of an OS.... hypervisors like Xen and HyperV operate below
the OS... the DOM0 OS is only there to manage the hypervisor, it's actually
virtualized itself.
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