RE: [Xen-devel] credit scheduler issues in 64bit hypervisor

[Rik van Riel <riel@xxxxxxxxxx>]

On Wed, 28 Jun 2006, Ian Pratt wrote:
> > When we use credit scheduler in 64bit hypervisor, we see these issues:
> > + Booting 32bit VMX domain hangs at "ACPI: Unable to locate RSDP".
> > + Booting 32pae VMX domain will get a kernel panic.
> > + Booting indows SP1/SP2 Guest will crash guest OS.
> > 
> > We don't see these issues with BVT scheduler.
> 
> Is this specific to 64b hypervisor? We do most HVM testing on 32b PAE
> and haven't seen these issues.

I am also seeing an instant reboot if I try the credit
scheduler on my x86-64 system.  The reboot happens every
time I try to start a VT guest domain - haven't tried
paravirt, since I need one of the VT domains :)

Please don't make the credit scheduler the default until
it actually works.

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