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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-users] Re: [Xen-devel] dom0-cpus problem with Xen 3.4.1-rc6
On Wed, Jul 22, 2009 at 08:01:02PM +0300, Pasi Kärkkäinen wrote: > On Wed, Jul 22, 2009 at 07:42:14PM +0300, Nerijus Narmontas wrote: > > On Wed, Jul 22, 2009 at 7:39 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote: > > > > > On Wed, Jul 22, 2009 at 07:34:16PM +0300, Nerijus Narmontas wrote: > > > > On Wed, Jul 22, 2009 at 6:21 PM, Pasi Kärkkäinen <pasik@xxxxxx> wrote: > > > > > > > > > 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 > > > > > > > > > > > > > From Ubuntu hardy-backports repositories 2.6.24-24-xen. > > > > > > Maybe dom0 kernel is your problem.. I remember there was a bug in kernel > > > that caused that kind of problems. > > > > > > That hardy's dom0 kernel is known to have other bugs aswell. > > > > > > If possible, try running the latest linux-2.6.18-xen from xenbits. > > > Or some other dom0 kernel, and see if that fixes the problem. > > > > > > -- Pasi > > > > > > > Ok I will try to build the latest 2.6.18 kernel. > > hg clone http://xenbits.xen.org/linux-2.6.18-xen.hg > > > Can you tell me what's the difference between Xen boot > > option dom0_max_vcpus=1 and (dom0-cpus 1) option > > in /etc/xen/xend-config.sxp? > > If I haven't misunderstood this dom0-cpus option in xend-config.sxp tells > which physical CPUs/cores vcpu's of dom0 will use.. > > ie. if you limit dom0_max_vcpus=1, then you can use dom0-cpus to tell which > one of the 8 available cpus/cores dom0's 1 vcpu will run on. > > So you can use that option do dedicate a core for dom0, and then use the > cpus= option for other domains to make them use other cores.. and this way > you'll be able to dedicate a core _only_ for dom0. > http://lists.xensource.com/archives/html/xen-users/2009-06/msg00037.html Explained better there.. -- Pasi _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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