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xen-devel
Re: [Xen-devel] dom0-cpus problem with Xen 3.4.1-rc6
On Wed, Jul 22, 2009 at 06:18:37PM +0300, Nerijus Narmontas wrote:
> On Tue, Jul 21, 2009 at 2:01 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
>
> > On Tue, Jul 21, 2009 at 01:53:25PM +0300, Nerijus Narmontas wrote:
> > > Hello,
> > > If I set (dom0-cpus 1) in /etc/xen/xend-config.sxp, after I gracefully
> > > shutdown domU, the domain stays in ---s- state.
> > >
> > > Is this fixed in 3.4.1-rc8?
> > >
> >
> > Hello.
> >
> > Please don't hijack threads - you replied to a thread about network
> > problems
> > and gplpv drivers. Always start a new thread for new subjects.
> >
> > What version are you seeing this behaviour with? Xen 3.4.0 ? What dom0
> > kernel version?
> >
> > -- Pasi
> >
>
> Sorry for the threads thing.
>
> root@xen1:/# more /etc/xen/xend-config.sxp | grep cpu
> # In SMP system, dom0 will use dom0-cpus # of CPUS
> # If dom0-cpus = 0, dom0 will take all cpus available
> (dom0-cpus 1)
>
> root@xen1:/# xm dmesg | grep Command
> (XEN) Command line: console=com2 com2=115200,8n1
>
> root@xen1:/# xm dmesg | grep VCPUs
> (XEN) Dom0 has maximum 8 VCPUs
>
> root@xen1:/# xm vcpu-list
> Name ID VCPU CPU State Time(s) CPU
> Affinity
> Domain-0 0 0 5 r-- 9.2 any cpu
> Domain-0 0 1 - --p 1.8 any cpu
> Domain-0 0 2 - --p 1.7 any cpu
> Domain-0 0 3 - --p 1.6 any cpu
> Domain-0 0 4 - --p 1.4 any cpu
> Domain-0 0 5 - --p 1.4 any cpu
> Domain-0 0 6 - --p 1.5 any cpu
> Domain-0 0 7 - --p 1.3 any cpu
>
> root@xen1:/# xm create /etc/xen/dc3.conf
> Using config file "/etc/xen/dc3.conf".
> Started domain dc3 (id=1)
>
> root@xen1:/# xm vcpu-list
> Name ID VCPU CPU State Time(s) CPU
> Affinity
> Domain-0 0 0 7 r-- 36.5 any cpu
> Domain-0 0 1 - --p 1.8 any cpu
> Domain-0 0 2 - --p 1.7 any cpu
> Domain-0 0 3 - --p 1.6 any cpu
> Domain-0 0 4 - --p 1.4 any cpu
> Domain-0 0 5 - --p 1.4 any cpu
> Domain-0 0 6 - --p 1.5 any cpu
> Domain-0 0 7 - --p 1.3 any cpu
> dc3 1 0 0 -b- 15.2 0
> dc3 1 1 1 -b- 6.8 1
> dc3 1 2 2 -b- 7.5 2
> dc3 1 3 3 -b- 8.0 3
>
> After HVM Windows domU shutdown, it stays in ---s- state.
>
> root@xen1:/# xm li
> Name ID Mem VCPUs State
> Time(s)
> Domain-0 0 24106 1 r-----
> 58.7
> dc3 1 8192 4 ---s--
> 59.0
>
> root@xen1:/# xm vcpu-list
> Name ID VCPU CPU State Time(s) CPU
> Affinity
> Domain-0 0 0 4 r-- 48.4 any cpu
> ...
> Domain-0 0 7 - --p 1.3 any cpu
> dc3 1 0 0 --- 20.0 0
> dc3 1 1 1 --- 10.9 1
> dc3 1 2 2 --- 15.2 2
> dc3 1 3 3 --- 12.9 3
>
> The problem goes away if I tell Xen to boot with options dom0_max_vcpus=1
> dom0_vcpus_pin.
>
> What's the difference between Xen boot options to limit vcpus for dom0 to
> /etc/xen/xend-config.sxp?
>
> I am running Xen 3.4.1-rc6 version.
OK.
What dom0 kernel version are you running?
-- Pasi
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