On Wed, Jan 13, 2010 at 10:25:45AM -0800, mail ignored wrote:
> On Wed, Jan 13, 2010 at 10:12 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > OK.. so you might want to report a bug to the opensuse bugzilla.
>
> so it *is* a bug. ok, i'll file @ opensuse. thanks.
>
I think it's actually two different bugs :)
1) You should be able to limit the number of dom0 vcpus by dom0_vcpus option
2) It shouldn't crash when you remove vcpus from dom0 using vcpu-set.
> > "dom0_vcpus=1 dom0_vcpus=pin" options should do it.
> > Verify with "xm dmesg" that there parameters are really there.
>
> seem to be,
>
> xm dmesg | egrep -i "dom0|vcp"
> (XEN) Command line: loglvl=all loglvl_guest=all dom0_mem=1024M
> vga=gfx-1280x1024x32 console=vga,com1 com1=57600,8n1 iommu=1
> cpufreq=xen:performance cpuidle dom0_vcpus=1 dom0_vcpus_pin
> sched=credit
> (XEN) Dom0 kernel: 64-bit, lsb, paddr 0x2000 -> 0x8e1000
> (XEN) Dom0 alloc.: 0000000216000000->0000000218000000 (253952
> pages to be allocated)
> (XEN) Dom0 has maximum 4 VCPUs
> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
> input to Xen)
>
> but it is, then.
>
I'll test dom0_vcpus option on my testbox at some point, with Xen 3.4.x.
I've been using it successfully with Xen 3.1.x, on RHEL5/CentOS5.
-- Pasi
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