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Re: [CentOS-virt] xen kernel showing only one processor on SMP
by Hristo Benev 19 May '08

19 May '08

>Date: Sun, 18 May 2008 08:42:16 -0700 >From: gen2 <gen2(a)planetofidiots.com> >Subject: Re: [CentOS-virt] xen kernel showing only one processor on > SMP >To: Discussion about the virtualization on CentOS > <centos-virt(a)centos.org> >Message-ID: <48304E58.10103(a)planetofidiots.com> >Content-Type: text/plain; charset=windows-1251; format=flowed > >Hristo Benev wrote: >> What if you boot with other kernel? >> >> If you have the same result maybe BIOS update is required for your server?! > >Hi thanks for the response >BIOS is updated and current, if I boot to gentoo liveCD, I see the >expected 4 processors. This server has indeed shown TWO processors using >centOS xen-kernel before, but now after some time and upgrades I notice >there is only one (again!). > >Is it as simple as BIOS in every case, or is there some other path to >discovering the problem I can try? (I have done many many hours of forum >searches and googling on this issue) Thank you > > >------------------------------ > >_______________________________________________ >CentOS-virt mailing list >CentOS-virt(a)centos.org >http://lists.centos.org/mailman/listinfo/centos-virt > > >End of CentOS-virt Digest, Vol 9, Issue 10 >****************************************** > The kernel does not support your ACPI BIOS (most probably). You may try to disable ACPI or better fill bug report in CentOS bugtracker. ----------------------------------------------------------------- Всичко за Евро 2008 !!! http://sportni.bg/euro2008/

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Re: [CentOS-virt] xen kernel showing only one processor on SMP
by Hristo Benev 18 May '08

18 May '08

What if you boot with other kernel? If you have the same result maybe BIOS update is required for your server?! >---------------------------------------------------------------------- > >Message: 1 >Date: Sat, 17 May 2008 14:51:45 -0700 >From: gen2 <gen2(a)planetofidiots.com> >Subject: [CentOS-virt] xen kernel showing only one processor on SMP > machine >To: centos-virt(a)centos.org >Message-ID: <482F5371.7010407(a)planetofidiots.com> >Content-Type: text/plain; charset=ISO-8859-1; format=flowed > >Hi there, > >I'm running an ibm xseries 345/dual Xeon 2.66GHz, 2.6.18-53.1.14.el5xen >#1 SMP, and cat /proc/cpuinfo shows me only one processor. Apparently >something strange happening with ACPI. What am I doing wrong? Thank you! >(sorry for the cross post, didn't realize there was a virt list first >time around!) > >Selected bits from dmesg: >------------------------- >Using ACPI (MADT) for SMP configuration information >SMP alternatives: switching to UP code >ACPI: Core revision 20060707 >CPU 1 irqstacks, hard=c0728000 soft=c0708000 >CPU 2 irqstacks, hard=c0729000 soft=c0709000 >CPU 3 irqstacks, hard=c072a000 soft=c070a000 >ENABLING IO-APIC IRQs >SMP alternatives: switching to SMP code >Initializing CPU#1 >Initializing CPU#2 >Brought up 4 CPUs > >ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is >not present [20060707] >ACPI: Getting cpuindex for acpiid 0x3 >ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is >not present [20060707] >ACPI: Getting cpuindex for acpiid 0x1 > > >------------------------------ ----------------------------------------------------------------- Всичко за Евро 2008 !!! http://sportni.bg/euro2008/

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xen kernel showing only one processor on SMP machine
by gen2 17 May '08

17 May '08

Hi there, I'm running an ibm xseries 345/dual Xeon 2.66GHz, 2.6.18-53.1.14.el5xen #1 SMP, and cat /proc/cpuinfo shows me only one processor. Apparently something strange happening with ACPI. What am I doing wrong? Thank you! (sorry for the cross post, didn't realize there was a virt list first time around!) Selected bits from dmesg: ------------------------- Using ACPI (MADT) for SMP configuration information SMP alternatives: switching to UP code ACPI: Core revision 20060707 CPU 1 irqstacks, hard=c0728000 soft=c0708000 CPU 2 irqstacks, hard=c0729000 soft=c0709000 CPU 3 irqstacks, hard=c072a000 soft=c070a000 ENABLING IO-APIC IRQs SMP alternatives: switching to SMP code Initializing CPU#1 Initializing CPU#2 Brought up 4 CPUs ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not present [20060707] ACPI: Getting cpuindex for acpiid 0x3 ACPI Exception (acpi_processor-0681): AE_NOT_FOUND, Processor Device is not present [20060707] ACPI: Getting cpuindex for acpiid 0x1

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virtual sprawl - managing password changes
by Jeff Larsen 16 May '08

16 May '08

We are using the free VMware Server on CentOS 4. Almost all of our VMs are CentOS 4 as well. We have 7 VMware hosts with about 40 total virtual machines. It's been a very successful architecture for us. I'm wondering how the rest of the community is managing updates of root (and other local account) passwords in a virtual sprawl environment (or a physical environment with lots of hosts). I have read about things like expect, puttycs, centralize with kerberos, etc. But I'm not looking for "options" here, I want to hear actual experiences! What has worked for you, what hasn't worked? Or do you feel that the chance for failure is to great and the results too catastrophic? Thanks, -- Jeff

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Virtual Iron
by Karanbir Singh 16 May '08

16 May '08

Guys FYI, A couple of people from VirtualIron got in touch with me following on from the flexiscale donation (we have a few i386/x86_64 VM's hosted there, we == CentOS Project, that the QA guys are looking at using to do some of their work in ) Over the next few days, the Virtual Iron guys will prolly touch base with this list and see how the centos project might be able to work with them on varios centos specific things. - KB

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xm new
by David Hláčik 16 May '08

16 May '08

Hello, i have Centos5.1 64bit, with xen3.2, using centos xen kernel, xen3.2 builded from source rpm for centos. Virtual machines work fine trough xm create configname ,but when i am trying to add them to xen source : xm new configname, this is what i get : [root@xen-prod xen]# xm new test01.hvm Unexpected error: exceptions.ImportError Please report to xen-devel(a)lists.xensource.com Traceback (most recent call last): File "/usr/sbin/xm", line 10, in ? main.main(sys.argv) File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 2531, in main _, rc = _run_cmd(cmd, cmd_name, args) File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 2555, in _run_cmd return True, cmd(args) File "<string>", line 1, in <lambda> File "/usr/lib64/python2.4/site-packages/xen/xm/main.py", line 1308, in xm_importcommand cmd = __import__(command, globals(), locals(), 'xen.xm') File "/usr/lib64/python2.4/site-packages/xen/xm/new.py", line 26, in ? from xen.xm.xenapi_create import * File "/usr/lib64/python2.4/site-packages/xen/xm/xenapi_create.py", line 23, in ? from xml.parsers.xmlproc import xmlproc, xmlval, xmldtd ImportError: No module named xmlproc Thanks in advance! D.

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Web based management system for Xen
by Karanbir Singh 15 May '08

15 May '08

Can anyone recommend a web based management panel that would let me bring up / tear down and do some basic management for a bunch of Xen VM's ? Special bonus points if the panel can manage remote Xen Hosts :D - KB

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build custom domU kernel from centos kernel source
by David Hláčik 14 May '08

14 May '08

Hi, i am trying to build a custom xen kernel from CentOS source kernel rpm . What i want to achieve is to have custom domU kernel without modules, which will boot domU machine without having /lib/modules . My first try is to simple disable Loadable module support , so i have followed tutorial on CentOS wiki for kernel building http://wiki.centos.org/HowTos/Custom_Kernel . Now it is building, my question is will it work? - again all i have done is to disabled loadable module support. Can someone please point me to sucessfull end? Thanks in advance! D.

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tick divider bugs
by Akemi Yagi 05 May '08

05 May '08

Hi all, If you are using the kernel divider= option in your vmware quest, you are probably aware of the bugs reported at: https://bugzilla.redhat.com/show_bug.cgi?id=315471 Someone @redhat "confirmed" the fix is in the test kernel -92. I tried it but it seems to have the same problem as before - when used with clocksource=pit, it hangs on bootup. Wonder if some of you can test this kernel and see how it goes. The test kernel is available from: http://people.redhat.com/dzickus/el5 Akemi

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Doubt about compatible hardware
by Waldirio Manhães Pinheiro 03 May '08

03 May '08

Hello friends I was installed the yum group Virtualization to start tests about it, but when my machine was restarted, hung up in same time of start xend daemon .., I'm stoped the daemon with chkconfig and the OS work's fine (without xen), but when I started the daemon, my NIC/Switch led turn off. For recommendation of a guy in #xen channel (irc.freenode.com), I cahnged my NIC and this problem was solved., but every time, my network stop answer .... There are any lists like Hardware Compatible List to Xen ?!, to jump problems like above, where I'll really what NIC I can use. Thank's in advanced. ______________ Atenciosamente Waldirio msn: wmp(a)sinope.com.br Site: www.waldirio.com.br Blog: blog.waldirio.com.br

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