Hristo Benev
2008-May-18 12:26 UTC
[CentOS-virt] xen kernel showing only one processor on SMP
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 at planetofidiots.com> >Subject: [CentOS-virt] xen kernel showing only one processor on SMP > machine >To: centos-virt at centos.org >Message-ID: <482F5371.7010407 at 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 > > >------------------------------ ----------------------------------------------------------------- ?????? ?? ???? 2008 !!! http://sportni.bg/euro2008/
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
Hristo Benev
2008-May-19 22:54 UTC
[CentOS-virt] xen kernel showing only one processor on SMP
>Date: Sun, 18 May 2008 08:42:16 -0700>From: gen2 <gen2 at planetofidiots.com> >Subject: Re: [CentOS-virt] xen kernel showing only one processor on > SMP >To: Discussion about the virtualization on CentOS > <centos-virt at centos.org> >Message-ID: <48304E58.10103 at 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 at 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. ----------------------------------------------------------------- ?????? ?? ???? 2008 !!! http://sportni.bg/euro2008/