[CentOS-virt] xen kernel showing only one processor on SMP

[Hristo Benev]

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
 >
 >
 >------------------------------


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