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Saravana Kumar K, Bangalore

2008-Jun-13 11:53 UTC

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[Xen-users] Xen shows single processor on a dual core system

Hi all,

On dual core processor machine, I installed ubuntu-8.04 in which I
installed xen-3.2.

In ubuntu:

# cat /proc/cpuinfo --> Shows two processors information.

But in Xen on the same machine:

# cat /proc/cpuinfo --> Shows only one processor information.

Can anyone please explain what could be the reason behind this?

Thanks

Saravana

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Todd Deshane

2008-Jun-13 18:28 UTC

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Re: [Xen-users] Xen shows single processor on a dual core system

On Fri, Jun 13, 2008 at 7:53 AM, Saravana Kumar K, Bangalore <
SaravanaKumar.k@hcl.in> wrote:
>  Hi all,
>
>
>
>      On dual core processor machine, I installed ubuntu-8.04 in which I
> installed xen-3.2.
>
>    In ubuntu:
>
>    # cat /proc/cpuinfo à Shows two processors information.
>
>
>
>   But in Xen on the same machine:
>
>   # cat /proc/cpuinfo à Shows only one processor information.
>
>
>
> Can anyone please explain what could be the reason behind this?
>
I don''t think I would expect this to be the case.

Just to clarify you have a dual-core, single processor system (two cores on
a single chip) right?

How did you install Xen 3.2 on ubuntu, which kernel are you using?

Is one of your kernels SMP on the other not SMP?

Cheers,
Todd


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Nick Couchman

2008-Jun-13 22:36 UTC

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Re: [Xen-users] Xen shows single processor on a dual core system

And, just to clarify, we are talking about your dom0, correct, and not a
domU (guest) you've installed?
 
-Nick
>>> On 2008/06/13 at 12:28, "Todd Deshane"
<deshantm@gmail.com> wrote:

On Fri, Jun 13, 2008 at 7:53 AM, Saravana Kumar K, Bangalore
<SaravanaKumar.k@hcl.in> wrote:



Hi all,
 
     On dual core processor machine, I installed ubuntu-8.04 in which I
installed xen-3.2. 
   In ubuntu:
   # cat /proc/cpuinfo àShows two processors information.
 
  But in Xen on the same machine:
  # cat /proc/cpuinfo àShows only one processor information.
 
Can anyone please explain what could be the reason behind this?


I don't think I would expect this to be the case.

Just to clarify you have a dual-core, single processor system (two
cores on a single chip) right?

How did you install Xen 3.2 on ubuntu, which kernel are you using?
 
Is one of your kernels SMP on the other not SMP?

Cheers,
Todd




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Nick Couchman

2008-Jun-13 22:53 UTC

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Re: [Xen-users] Xen shows single processor on a dual core system

Also, try running "xm info" on your dom0 - one of the lines should be
"nr_cpus" which should tell you how many CPUs the Xen hypervisor is
seeing.
 
-nick
>>> On 2008/06/13 at 12:28, "Todd Deshane"
<deshantm@gmail.com> wrote:

On Fri, Jun 13, 2008 at 7:53 AM, Saravana Kumar K, Bangalore
<SaravanaKumar.k@hcl.in> wrote:



Hi all,
 
     On dual core processor machine, I installed ubuntu-8.04 in which I
installed xen-3.2. 
   In ubuntu:
   # cat /proc/cpuinfo àShows two processors information.
 
  But in Xen on the same machine:
  # cat /proc/cpuinfo àShows only one processor information.
 
Can anyone please explain what could be the reason behind this?


I don't think I would expect this to be the case.

Just to clarify you have a dual-core, single processor system (two
cores on a single chip) right?

How did you install Xen 3.2 on ubuntu, which kernel are you using?
 
Is one of your kernels SMP on the other not SMP?

Cheers,
Todd




This e-mail may contain confidential and privileged material for the sole use of
the intended recipient.  If this email is not intended for you, or you are not
responsible for the delivery of this message to the intended recipient, please
note that this message may contain SEAKR Engineering (SEAKR)
Privileged/Proprietary Information.  In such a case, you are strictly prohibited
from downloading, photocopying, distributing or otherwise using this message,
its contents or attachments in any way.  If you have received this message in
error, please notify us immediately by replying to this e-mail and delete the
message from your mailbox.  Information contained in this message that does not
relate to the business of SEAKR is neither endorsed by nor attributable to
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Todd Deshane

2008-Jun-16 14:33 UTC

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[Xen-users] Re: Xen shows single processor on a dual core system

Hi Saravana,

You should keep this information on the list so that others can help too.

Cheers,
Todd

On Mon, Jun 16, 2008 at 5:12 AM, Saravana Kumar K, Bangalore <
SaravanaKumar.k@hcl.in> wrote:
>  Hello Todd,
>
>
>
> Query which I asked
>
>   On dual core processor machine, I installed ubuntu-8.04 in which I
> installed xen-3.2.
>
>   In ubuntu:
>
>   # cat /proc/cpuinfo à Shows two processors information.
>
>   But in Xen on the same machine:
>
>   # cat /proc/cpuinfo à Shows only one processor information.
>
> *Please find my answers inline*
>
>
>
> Just to clarify you have a dual-core, single processor system (two cores on
> a single chip) right?
>
>  *Yes, it has two cores on a single chip.*
>
>
> How did you install Xen 3.2 on ubuntu, which kernel are you using?
>
>
>
> *Build from source.*
>
> *Kernel version is: 2.6.18.8-xen*
>
>
> Is one of your kernels SMP on the other not SMP?
>
>  *I am sorry, I did not get you here*
>
> Please find uname –a (Xen) output:
>
> Linux luser-desktop 2.6.18.8-xen #1 SMP Mon Jun 9 18:22:20 IST 2008 i686
> GNU/Linux
>
> *
> Cat  /proc/cpuinfo **à** In ubuntu*
>
> processor       : 0
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 1998.000
>
> cache size      : 4096 KB
>
> physical id     : 0
>
> siblings        : 2
>
> core id         : 0
>
> cpu cores       : 2
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
> constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2 ssse3
> cx16 xtpr lahf_lm
>
> bogomips        : 5336.77
>
> clflush size    : 64
>
>
>
> processor       : 1
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 1998.000
>
> cache size      : 4096 KB
>
> physical id     : 0
>
> siblings        : 2
>
> core id         : 1
>
> cpu cores       : 2
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
> cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
> constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2 ssse3
> cx16 xtpr lahf_lm
>
> bogomips        : 5333.09
>
> clflush size    : 64
>
>
>
>
>
> *cat  /proc/cpuinfo **à** In Xen*
>
> * *
>
> processor       : 0
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 2666.418
>
> cache size      : 4096 KB
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu de tsc msr pae cx8 apic mtrr cmov pat clflush acpi
> mmx fxsr sse sse2 ss ht constant_tsc up pni
>
> bogomips        : 5423.10
>
> * *
>
> * *
>
> *Thanks*
>
> *Saravana*
>
> * *
>  DISCLAIMER:
>
>
-----------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its
> affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect
> the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification,
> distribution and / or publication of
> this message without the prior written consent of the author of this e-mail
> is strictly prohibited. If you have
> received this email in error please delete it and notify the sender
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>
>
>
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>

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Saravana Kumar K, Bangalore

2008-Jun-17 08:57 UTC

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[Xen-users] Xen shows single processor on a dual core system

Hi all,

 

     On dual core processor machine, I installed ubuntu-8.04 in which I
installed xen-3.2. 

   In ubuntu:

   # cat /proc/cpuinfo --> Shows two processors information.

 

  But in Xen on the same machine:

  # cat /proc/cpuinfo --> Shows only one processor information.

 

Can anyone please explain what could be the reason behind this?

 

I have a dual-core, single processor system (two cores on a single
chip).

Xen-3.2 build from source. Kernel version is: 2.6.18.8-xen

 

Please find the /proc/cpuinfo for ubuntu and xen

 

Cat  /proc/cpuinfo --> In ubuntu

processor       : 0

vendor_id       : GenuineIntel

cpu family      : 6

model           : 15

model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz

stepping        : 11

cpu MHz         : 1998.000

cache size      : 4096 KB

physical id     : 0

siblings        : 2

core id         : 0

cpu cores       : 2

fdiv_bug        : no

hlt_bug         : no

f00f_bug        : no

coma_bug        : no

fpu             : yes

fpu_exception   : yes

cpuid level     : 10

wp              : yes

flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2
ssse3 cx16 xtpr lahf_lm

bogomips        : 5336.77

clflush size    : 64

 

processor       : 1

vendor_id       : GenuineIntel

cpu family      : 6

model           : 15

model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz

stepping        : 11

cpu MHz         : 1998.000

cache size      : 4096 KB

physical id     : 0

siblings        : 2

core id         : 1

cpu cores       : 2

fdiv_bug        : no

hlt_bug         : no

f00f_bug        : no

coma_bug        : no

fpu             : yes

fpu_exception   : yes

cpuid level     : 10

wp              : yes

flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2
ssse3 cx16 xtpr lahf_lm

bogomips        : 5333.09

clflush size    : 64

 

 

cat  /proc/cpuinfo --> In Xen

 

processor       : 0

vendor_id       : GenuineIntel

cpu family      : 6

model           : 15

model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz

stepping        : 11

cpu MHz         : 2666.418

cache size      : 4096 KB

fdiv_bug        : no

hlt_bug         : no

f00f_bug        : no

coma_bug        : no

fpu             : yes

fpu_exception   : yes

cpuid level     : 10

wp              : yes

flags           : fpu de tsc msr pae cx8 apic mtrr cmov pat clflush acpi
mmx fxsr sse sse2 ss ht constant_tsc up pni

bogomips        : 5423.10

 

 

Thanks

Saravana                    



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Rafał Kupka

2008-Jun-17 09:45 UTC

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Re: [Xen-users] Xen shows single processor on a dual core system

On Tue, Jun 17, 2008 at 02:27:15PM +0530, Saravana Kumar K, Bangalore wrote:
Hi,
> On dual core processor machine, I installed ubuntu-8.04 in which I
> installed xen-3.2. 
> 
>    In ubuntu:
> 
>    # cat /proc/cpuinfo --> Shows two processors information.
Please post the output from dmesg command on freshly started system.
>   But in Xen on the same machine:
> 
>   # cat /proc/cpuinfo --> Shows only one processor information.
Again, dmesg and xm dmesg results should give us some clues.
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only. [...]

I guess I''m not allowed to reply...

Greetings,
Kupson
-- 
Great software without the knowledge to run it is pretty useless.
(Linux Gazette #1)

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Saravana Kumar K, Bangalore

2008-Jun-17 09:55 UTC

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RE: [Xen-users] Xen shows single processor on a dual core system

Please find xm dmesg below:

 

\ \/ /___ _ __   |___ / |___ \  / |

  \  // _ \ ''_ \    |_ \   __) | | |

  /  \  __/ | | |  ___) | / __/ _| |

 /_/\_\___|_| |_| |____(_)_____(_)_|

 

(XEN) Xen version 3.2.1 (root@) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) Mon
Jun  9 18:24:56 IST 2008

(XEN) Latest ChangeSet: unavailable

(XEN) Command line: acpi=off

(XEN) Video information:

(XEN)  VGA is text mode 80x25, font 8x16

(XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds

(XEN)  EDID info not retrieved because no DDC retrieval method detected

(XEN) Disc information:

(XEN)  Found 1 MBR signatures

(XEN)  Found 1 EDD information structures

(XEN) Xen-e820 RAM map:

(XEN)  0000000000000000 - 000000000009ec00 (usable)

(XEN)  000000000009ec00 - 00000000000a0000 (reserved)

(XEN)  00000000000e0000 - 0000000000100000 (reserved)

(XEN)  0000000000100000 - 000000003ec20000 (usable)

(XEN)  000000003ec20000 - 000000003ec22000 (reserved)

(XEN)  000000003ec22000 - 000000003ecfa000 (usable)

(XEN)  000000003ecfa000 - 000000003edea000 (ACPI NVS)

(XEN)  000000003edea000 - 000000003edee000 (usable)

(XEN)  000000003edee000 - 000000003edf3000 (ACPI data)

(XEN)  000000003edf3000 - 000000003edf4000 (usable)

(XEN)  000000003edf4000 - 000000003edff000 (ACPI data)

(XEN)  000000003edff000 - 000000003ee00000 (usable)

(XEN)  000000003ee00000 - 000000003f800000 (reserved)

(XEN)  00000000f0000000 - 00000000f8000000 (reserved)

(XEN)  00000000fff00000 - 0000000100000000 (reserved)

(XEN) System RAM: 1004MB (1028720kB)

(XEN) Xen heap: 9MB (10100kB)

(XEN) Domain heap initialised: DMA width 32 bits

(XEN) PAE enabled, limit: 16 GB

(XEN) Processor #0 6:15 APIC version 20

(XEN) Enabling APIC mode:  Flat.  Using 0 I/O APICs

(XEN) BIOS bug, no explicit IRQ entries, using default mptable. (tell your hw
vendor)

(XEN) Using scheduler: SMP Credit Scheduler (credit)

(XEN) Detected 2666.419 MHz processor.

(XEN) HVM: VMX enabled

(XEN) CPU0: Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz stepping 0b

(XEN) Total of 1 processors activated.

(XEN) Platform timer overflows in 2 jiffies.

(XEN) Platform timer is 1.193MHz PIT

(XEN) Brought up 1 CPUs

(XEN) AMD IOMMU: Disabled

(XEN) *** LOADING DOMAIN 0 ***

(XEN)  Xen  kernel: 32-bit, PAE, lsb

(XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc044d97c

(XEN) PHYSICAL MEMORY ARRANGEMENT:

(XEN)  Dom0 alloc.:   000000003a000000->000000003c000000 (228232 pages to be
allocated)

(XEN) VIRTUAL MEMORY ARRANGEMENT:

(XEN)  Loaded kernel: c0100000->c044d97c

(XEN)  Init. ramdisk: c044e000->c15bfa00

(XEN)  Phys-Mach map: c15c0000->c16a6e20

(XEN)  Start info:    c16a7000->c16a7474

(XEN)  Page tables:   c16a8000->c16b9000

(XEN)  Boot stack:    c16b9000->c16ba000

(XEN)  TOTAL:         c0000000->c1800000

(XEN)  ENTRY ADDRESS: c0100000

(XEN) Dom0 has maximum 1 VCPUs

(XEN) Initrd len 0x1171a00, start at 0xc044e000

(XEN) Scrubbing Free RAM: done.

(XEN) Xen trace buffers: disabled

(XEN) Std. Loglevel: Errors and warnings

(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)

(XEN) Xen is relinquishing VGA console.

(XEN) *** Serial input -> DOM0 (type ''CTRL-a'' three times
to switch input to Xen)

(XEN) Freed 96kB init memory.

 

Please find the dmesg below

 

04fffff

  PREFETCH window: disabled.

PCI: Bridge: 0000:00:1c.1

  IO window: 2000-2fff

  MEM window: 50100000-501fffff

  PREFETCH window: disabled.

PCI: Bridge: 0000:00:1c.2

  IO window: disabled.

  MEM window: 50500000-505fffff

  PREFETCH window: disabled.

PCI: Bridge: 0000:00:1c.3

  IO window: disabled.

  MEM window: 50600000-506fffff

  PREFETCH window: disabled.

PCI: Bridge: 0000:00:1c.4

  IO window: disabled.

  MEM window: 50700000-507fffff

  PREFETCH window: disabled.

PCI: Bridge: 0000:00:1e.0

  IO window: 1000-1fff

  MEM window: 50000000-500fffff

  PREFETCH window: 50800000-508fffff

PCI: Enabling device 0000:00:1c.0 (0000 -> 0002)

PCI: Found IRQ 9 for device 0000:00:1c.0

PCI: Sharing IRQ 9 with 0000:00:1a.2

PCI: Sharing IRQ 9 with 0000:00:1a.7

PCI: Sharing IRQ 9 with 0000:00:1c.4

PCI: Sharing IRQ 9 with 0000:02:00.0

PCI: Setting latency timer of device 0000:00:1c.0 to 64

PCI: Found IRQ 9 for device 0000:00:1c.1

PCI: Sharing IRQ 9 with 0000:00:19.0

PCI: Setting latency timer of device 0000:00:1c.1 to 64

PCI: Enabling device 0000:00:1c.2 (0000 -> 0002)

PCI: Found IRQ 10 for device 0000:00:1c.2

PCI: Sharing IRQ 10 with 0000:00:1a.0

PCI: Sharing IRQ 10 with 0000:00:1d.2

PCI: Sharing IRQ 10 with 0000:00:1f.3

PCI: Sharing IRQ 10 with 0000:06:02.0

PCI: Setting latency timer of device 0000:00:1c.2 to 64

PCI: Enabling device 0000:00:1c.3 (0000 -> 0002)

PCI: Found IRQ 11 for device 0000:00:1c.3

PCI: Sharing IRQ 11 with 0000:00:1d.1

PCI: Sharing IRQ 11 with 0000:06:03.0

PCI: Setting latency timer of device 0000:00:1c.3 to 64

PCI: Enabling device 0000:00:1c.4 (0000 -> 0002)

PCI: Found IRQ 9 for device 0000:00:1c.4

PCI: Sharing IRQ 9 with 0000:00:1a.2

PCI: Sharing IRQ 9 with 0000:00:1a.7

PCI: Sharing IRQ 9 with 0000:00:1c.0

PCI: Sharing IRQ 9 with 0000:02:00.0

PCI: Setting latency timer of device 0000:00:1c.4 to 64

PCI: Setting latency timer of device 0000:00:1e.0 to 64

NET: Registered protocol family 2

IP route cache hash table entries: 32768 (order: 5, 131072 bytes)

TCP established hash table entries: 131072 (order: 8, 1048576 bytes)

TCP bind hash table entries: 65536 (order: 7, 524288 bytes)

TCP: Hash tables configured (established 131072 bind 65536)

TCP reno registered

PM: Adding info for platform:pcspkr

IA-32 Microcode Update Driver: v1.14a-xen <tigran@veritas.com>

audit: initializing netlink socket (disabled)

audit(1213606966.680:1): initialized

highmem bounce pool size: 64 pages

VFS: Disk quotas dquot_6.5.1

Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

Initializing Cryptographic API

io scheduler noop registered

io scheduler anticipatory registered

io scheduler deadline registered

io scheduler cfq registered (default)

PM: Adding info for platform:vesafb.0

floppy0: Unable to grab DMA2 for the floppy driver

floppy0: no floppy controllers found

RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize

loop: loaded (max 8 devices)

Xen virtual console successfully installed as xvc0

Event-channel device installed.

Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx

PNP: No PS/2 controller found. Probing ports directly.

PM: Adding info for platform:i8042

serio: i8042 AUX port at 0x60,0x64 irq 12

serio: i8042 KBD port at 0x60,0x64 irq 1

PM: Adding info for serio:serio0

PM: Adding info for serio:serio1

mice: PS/2 mouse device common for all mice

md: md driver 0.90.3 MAX_MD_DEVS=256, MD_SB_DISKS=27

md: bitmap version 4.39

NET: Registered protocol family 1

NET: Registered protocol family 17

Using IPI No-Shortcut mode

BIOS EDD facility v0.16 2004-Jun-25, 1 devices found

Freeing unused kernel memory: 196k freed

input: AT Translated Set 2 keyboard as /class/input/input0

fuse init (API version 7.7)

input: ImPS/2 Generic Wheel Mouse as /class/input/input1

usbcore: registered new driver usbfs

usbcore: registered new driver hub

USB Universal Host Controller Interface driver v3.0

PCI: Found IRQ 10 for device 0000:00:1a.0

PCI: Sharing IRQ 10 with 0000:00:1c.2

PCI: Sharing IRQ 10 with 0000:00:1d.2

PCI: Sharing IRQ 10 with 0000:00:1f.3

PCI: Sharing IRQ 10 with 0000:06:02.0

PCI: Setting latency timer of device 0000:00:1a.0 to 64

uhci_hcd 0000:00:1a.0: UHCI Host Controller

uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1

uhci_hcd 0000:00:1a.0: irq 10, io base 0x000030e0

PM: Adding info for usb:usb1

PM: Adding info for No Bus:usbdev1.1_ep00

usb usb1: configuration #1 chosen from 1 choice

PM: Adding info for usb:1-0:1.0

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 2 ports detected

SCSI subsystem initialized

libata version 2.00 loaded.

PM: Adding info for No Bus:usbdev1.1_ep81

PCI: Found IRQ 11 for device 0000:00:1a.1

PCI: Sharing IRQ 11 with 0000:00:1f.2

PCI: Setting latency timer of device 0000:00:1a.1 to 64

uhci_hcd 0000:00:1a.1: UHCI Host Controller

uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 2

uhci_hcd 0000:00:1a.1: irq 11, io base 0x000030c0

PM: Adding info for usb:usb2

PM: Adding info for No Bus:usbdev2.1_ep00

usb usb2: configuration #1 chosen from 1 choice

PM: Adding info for usb:2-0:1.0

hub 2-0:1.0: USB hub found

hub 2-0:1.0: 2 ports detected

Linux Tulip driver version 1.1.13-NAPI (May 11, 2002)

ieee1394: Initialized config rom entry `ip1394''

PM: Adding info for No Bus:usbdev2.1_ep81

PCI: Found IRQ 9 for device 0000:00:1a.2

PCI: Sharing IRQ 9 with 0000:00:1a.7

PCI: Sharing IRQ 9 with 0000:00:1c.0

PCI: Sharing IRQ 9 with 0000:00:1c.4

PCI: Sharing IRQ 9 with 0000:02:00.0

PCI: Setting latency timer of device 0000:00:1a.2 to 64

uhci_hcd 0000:00:1a.2: UHCI Host Controller

uhci_hcd 0000:00:1a.2: new USB bus registered, assigned bus number 3

uhci_hcd 0000:00:1a.2: irq 9, io base 0x000030a0

PM: Adding info for usb:usb3

PM: Adding info for No Bus:usbdev3.1_ep00

usb usb3: configuration #1 chosen from 1 choice

PM: Adding info for usb:3-0:1.0

hub 3-0:1.0: USB hub found

hub 3-0:1.0: 2 ports detected

PM: Adding info for No Bus:usbdev3.1_ep81

PCI: Found IRQ 11 for device 0000:00:1d.0

PCI: Sharing IRQ 11 with 0000:00:1d.7

PCI: Setting latency timer of device 0000:00:1d.0 to 64

uhci_hcd 0000:00:1d.0: UHCI Host Controller

uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 4

uhci_hcd 0000:00:1d.0: irq 11, io base 0x00003080

PM: Adding info for usb:usb4

PM: Adding info for No Bus:usbdev4.1_ep00

usb usb4: configuration #1 chosen from 1 choice

PM: Adding info for usb:4-0:1.0

hub 4-0:1.0: USB hub found

hub 4-0:1.0: 2 ports detected

PM: Adding info for No Bus:usbdev4.1_ep81

PCI: Found IRQ 11 for device 0000:00:1d.1

PCI: Sharing IRQ 11 with 0000:00:1c.3

PCI: Sharing IRQ 11 with 0000:06:03.0

PCI: Setting latency timer of device 0000:00:1d.1 to 64

uhci_hcd 0000:00:1d.1: UHCI Host Controller

uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 5

uhci_hcd 0000:00:1d.1: irq 11, io base 0x00003060

PM: Adding info for usb:usb5

PM: Adding info for No Bus:usbdev5.1_ep00

usb usb5: configuration #1 chosen from 1 choice

PM: Adding info for usb:5-0:1.0

hub 5-0:1.0: USB hub found

hub 5-0:1.0: 2 ports detected

PM: Adding info for No Bus:usbdev5.1_ep81

PCI: Found IRQ 10 for device 0000:00:1d.2

PCI: Sharing IRQ 10 with 0000:00:1a.0

PCI: Sharing IRQ 10 with 0000:00:1c.2

PCI: Sharing IRQ 10 with 0000:00:1f.3

PCI: Sharing IRQ 10 with 0000:06:02.0

PCI: Setting latency timer of device 0000:00:1d.2 to 64

uhci_hcd 0000:00:1d.2: UHCI Host Controller

uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 6

uhci_hcd 0000:00:1d.2: irq 10, io base 0x00003040

PM: Adding info for usb:usb6

PM: Adding info for No Bus:usbdev6.1_ep00

usb usb6: configuration #1 chosen from 1 choice

PM: Adding info for usb:6-0:1.0

hub 6-0:1.0: USB hub found

hub 6-0:1.0: 2 ports detected

PM: Adding info for No Bus:usbdev6.1_ep81

PCI: Found IRQ 9 for device 0000:00:1a.7

PCI: Sharing IRQ 9 with 0000:00:1a.2

PCI: Sharing IRQ 9 with 0000:00:1c.0

PCI: Sharing IRQ 9 with 0000:00:1c.4

PCI: Sharing IRQ 9 with 0000:02:00.0

PCI: Setting latency timer of device 0000:00:1a.7 to 64

ehci_hcd 0000:00:1a.7: EHCI Host Controller

ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 7

ehci_hcd 0000:00:1a.7: debug port 1

PCI: cache line size of 32 is not supported by device 0000:00:1a.7

ehci_hcd 0000:00:1a.7: irq 9, io mem 0x503a5c00

ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

PM: Adding info for usb:usb7

PM: Adding info for No Bus:usbdev7.1_ep00

usb usb7: configuration #1 chosen from 1 choice

PM: Adding info for usb:7-0:1.0

hub 7-0:1.0: USB hub found

hub 7-0:1.0: 6 ports detected

PM: Adding info for No Bus:usbdev7.1_ep81

PCI: Found IRQ 11 for device 0000:00:1d.7

PCI: Sharing IRQ 11 with 0000:00:1d.0

PCI: Setting latency timer of device 0000:00:1d.7 to 64

ehci_hcd 0000:00:1d.7: EHCI Host Controller

ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 8

ehci_hcd 0000:00:1d.7: debug port 1

PCI: cache line size of 32 is not supported by device 0000:00:1d.7

ehci_hcd 0000:00:1d.7: irq 11, io mem 0x503a5800

ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004

PM: Adding info for usb:usb8

PM: Adding info for No Bus:usbdev8.1_ep00

usb usb8: configuration #1 chosen from 1 choice

PM: Adding info for usb:8-0:1.0

hub 8-0:1.0: USB hub found

hub 8-0:1.0: 6 ports detected

PM: Adding info for No Bus:usbdev8.1_ep81

ahci 0000:00:1f.2: version 2.0

PCI: Found IRQ 11 for device 0000:00:1f.2

PCI: Sharing IRQ 11 with 0000:00:1a.1

PCI: Setting latency timer of device 0000:00:1f.2 to 64

ahci 0000:00:1f.2: AHCI 0001.0200 32 slots 6 ports 3 Gbps 0x3f impl SATA mode

ahci 0000:00:1f.2: flags: 64bit ncq led clo pmp pio slum part

ata1: SATA max UDMA/133 cmd 0xEE098100 ctl 0x0 bmdma 0x0 irq 11

ata2: SATA max UDMA/133 cmd 0xEE098180 ctl 0x0 bmdma 0x0 irq 11

ata3: SATA max UDMA/133 cmd 0xEE098200 ctl 0x0 bmdma 0x0 irq 11

ata4: SATA max UDMA/133 cmd 0xEE098280 ctl 0x0 bmdma 0x0 irq 11

ata5: SATA max UDMA/133 cmd 0xEE098300 ctl 0x0 bmdma 0x0 irq 11

ata6: SATA max UDMA/133 cmd 0xEE098380 ctl 0x0 bmdma 0x0 irq 11

scsi0 : ahci

PM: Adding info for No Bus:host0

ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)

ata1.00: ATA-7, max UDMA/133, 312581808 sectors: LBA48 NCQ (depth 31/32)

ata1.00: configured for UDMA/133

scsi1 : ahci

PM: Adding info for No Bus:host1

ata2: SATA link down (SStatus 0 SControl 300)

scsi2 : ahci

PM: Adding info for No Bus:host2

ata3: SATA link down (SStatus 0 SControl 300)

scsi3 : ahci

PM: Adding info for No Bus:host3

ata4: SATA link down (SStatus 0 SControl 300)

scsi4 : ahci

PM: Adding info for No Bus:host4

ata5: SATA link down (SStatus 0 SControl 300)

scsi5 : ahci

PM: Adding info for No Bus:host5

ata6: SATA link down (SStatus 0 SControl 300)

PM: Adding info for No Bus:target0:0:0

  Vendor: ATA       Model: ST3160215AS       Rev: 3.AA

  Type:   Direct-Access                      ANSI SCSI revision: 05

PM: Adding info for scsi:0:0:0:0

PCI: Found IRQ 10 for device 0000:06:02.0

PCI: Sharing IRQ 10 with 0000:00:1a.0

PCI: Sharing IRQ 10 with 0000:00:1c.2

PCI: Sharing IRQ 10 with 0000:00:1d.2

PCI: Sharing IRQ 10 with 0000:00:1f.3

tulip0:  EEPROM default media type Autosense.

tulip0:  Index #0 - Media MII (#11) described by a 21140 MII PHY (1) block.

tulip0:  MII transceiver #3 config 3100 status 7809 advertising 01e1.

eth0: Digital DS21140 Tulip rev 32 at 00011000, 00:00:C0:12:33:00, IRQ 10.

PCI: Found IRQ 11 for device 0000:06:03.0

PCI: Sharing IRQ 11 with 0000:00:1c.3

PCI: Sharing IRQ 11 with 0000:00:1d.1

PM: Adding info for ieee1394:fw-host0

ohci1394: fw-host0: OHCI-1394 1.1 (PCI): IRQ=[11]  MMIO=[50004000-500047ff]  Max
Packet=[2048]  IR/IT contexts=[4/8]

SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)

sda: Write Protect is off

sda: Mode Sense: 00 3a 00 00

SCSI device sda: drive cache: write back

SCSI device sda: 312581808 512-byte hdwr sectors (160042 MB)

sda: Write Protect is off

sda: Mode Sense: 00 3a 00 00

SCSI device sda: drive cache: write back

 sda: sda1 sda2 sda3 sda4

sd 0:0:0:0: Attached scsi disk sda

sd 0:0:0:0: Attached scsi generic sg0 type 0

kjournald starting.  Commit interval 5 seconds

EXT3-fs: mounted filesystem with ordered data mode.

 

  ***************************************************************

  ***************************************************************

  ** WARNING: Currently emulating unsupported memory accesses  **

  **          in /lib/tls glibc libraries. The emulation is    **

  **          slow. To ensure full performance you should      **

  **          install a ''xen-friendly'' (nosegneg) version of  
**

  **          the library, or disable tls support by executing **

  **          the following as root:                           **

  **          mv /lib/tls /lib/tls.disabled                    **

  ** Offending process: init (pid=2583)                        **

  ***************************************************************

  ***************************************************************

 

Continuing...

 

PM: Adding info for ieee1394:0090270001f39032

ieee1394: Host added: ID:BUS[0-00:1023]  GUID[0090270001f39032]

PM: Adding info for ieee1394:0090270001f39032-0

ts: Compaq touchscreen protocol output

NET: Registered protocol family 10

lo: Disabled Privacy Extensions

IPv6 over IPv4 tunneling driver

pci_hotplug: PCI Hot Plug PCI Core version: 0.5

shpchp: Standard Hot Plug PCI Controller Driver version: 0.4

input: PC Speaker as /class/input/input2

PCI: Found IRQ 10 for device 0000:00:1b.0

PCI: Setting latency timer of device 0000:00:1b.0 to 64

eth0: Setting full-duplex based on MII#3 link partner capability of 03e1.

hda_codec: Unknown model for ALC883, trying auto-probe from BIOS...

lp: driver loaded but no devices found

ieee1394: sbp2: Driver forced to serialize I/O (serialize_io=1)

ieee1394: sbp2: Try serialize_io=0 for better performance

Adding 1951888k swap on /dev/sda2.  Priority:-1 extents:1 across:1951888k

Adding 1951888k swap on /dev/sda4.  Priority:-2 extents:1 across:1951888k

EXT3 FS on sda3, internal journal

ip_tables: (C) 2000-2006 Netfilter Core Team

ppdev: user-space parallel port driver

Bridge firewalling registered

Netfilter messages via NETLINK v0.30.

ip_conntrack version 2.4 (7452 buckets, 59616 max) - 228 bytes per conntrack

peth0: Promiscuous mode enabled.

device peth0 entered promiscuous mode

audit(1213607006.148:2): dev=peth0 prom=256 old_prom=0 auid=4294967295

eth0: port 1(peth0) entering learning state

eth0: topology change detected, propagating

eth0: port 1(peth0) entering forwarding state

peth0: Promiscuous mode enabled.

Bluetooth: Core ver 2.10

PM: Adding info for platform:Bluetooth

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

peth0: Promiscuous mode enabled.

peth0: Promiscuous mode enabled.

Bluetooth: L2CAP ver 2.8

Bluetooth: L2CAP socket layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM ver 1.8

peth0: Promiscuous mode enabled.

peth0: Promiscuous mode enabled.

peth0: Promiscuous mode enabled.

peth0: Promiscuous mode enabled.

vnet0: no IPv6 routers present

eth0: no IPv6 routers present

peth0: Promiscuous mode enabled.

peth0: Promiscuous mode enabled.

 

Thanks

Saravana

 

-----Original Message-----
From: xen-users-bounces@lists.xensource.com
[mailto:xen-users-bounces@lists.xensource.com] On Behalf Of Rafal Kupka
Sent: Tuesday, June 17, 2008 3:15 PM
To: xen-users@lists.xensource.com
Subject: Re: [Xen-users] Xen shows single processor on a dual core system

 

On Tue, Jun 17, 2008 at 02:27:15PM +0530, Saravana Kumar K, Bangalore wrote:

Hi,

 
> On dual core processor machine, I installed ubuntu-8.04 in which I
> installed xen-3.2. 
> 
>    In ubuntu:
> 
>    # cat /proc/cpuinfo --> Shows two processors information.
 

Please post the output from dmesg command on freshly started system.

 
>   But in Xen on the same machine:
> 
>   # cat /proc/cpuinfo --> Shows only one processor information.
 

Again, dmesg and xm dmesg results should give us some clues.

 
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only. 
[...]

 

I guess I''m not allowed to reply...

 

Greetings,

Kupson

-- 

Great software without the knowledge to run it is pretty useless.

(Linux Gazette #1)

 

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Mark Williamson

2008-Jun-18 18:14 UTC

head link

Re: [Xen-users] Xen shows single processor on a dual core system

The output of "xm info" is useful here.

dom0 usually only gets one virtual CPU, so reading /proc/cpuinfo won''t 
necessarily give you meaningful results.  xm info will tell you how many CPUs 
Xen thinks it has to give to other guests.

Cheers,
Mark

On Tuesday 17 June 2008, Saravana Kumar K, Bangalore
wrote:> Hi all,
>
>
>
>      On dual core processor machine, I installed ubuntu-8.04 in which I
> installed xen-3.2.
>
>    In ubuntu:
>
>    # cat /proc/cpuinfo --> Shows two processors information.
>
>
>
>   But in Xen on the same machine:
>
>   # cat /proc/cpuinfo --> Shows only one processor information.
>
>
>
> Can anyone please explain what could be the reason behind this?
>
>
>
> I have a dual-core, single processor system (two cores on a single
> chip).
>
> Xen-3.2 build from source. Kernel version is: 2.6.18.8-xen
>
>
>
> Please find the /proc/cpuinfo for ubuntu and xen
>
>
>
> Cat  /proc/cpuinfo --> In ubuntu
>
> processor       : 0
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 1998.000
>
> cache size      : 4096 KB
>
> physical id     : 0
>
> siblings        : 2
>
> core id         : 0
>
> cpu cores       : 2
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
> constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2
> ssse3 cx16 xtpr lahf_lm
>
> bogomips        : 5336.77
>
> clflush size    : 64
>
>
>
> processor       : 1
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 1998.000
>
> cache size      : 4096 KB
>
> physical id     : 0
>
> siblings        : 2
>
> core id         : 1
>
> cpu cores       : 2
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe lm
> constant_tsc arch_perfmon pebs bts pni monitor ds_cpl vmx smx est tm2
> ssse3 cx16 xtpr lahf_lm
>
> bogomips        : 5333.09
>
> clflush size    : 64
>
>
>
>
>
> cat  /proc/cpuinfo --> In Xen
>
>
>
> processor       : 0
>
> vendor_id       : GenuineIntel
>
> cpu family      : 6
>
> model           : 15
>
> model name      : Intel(R) Core(TM)2 Duo CPU     E6750  @ 2.66GHz
>
> stepping        : 11
>
> cpu MHz         : 2666.418
>
> cache size      : 4096 KB
>
> fdiv_bug        : no
>
> hlt_bug         : no
>
> f00f_bug        : no
>
> coma_bug        : no
>
> fpu             : yes
>
> fpu_exception   : yes
>
> cpuid level     : 10
>
> wp              : yes
>
> flags           : fpu de tsc msr pae cx8 apic mtrr cmov pat clflush acpi
> mmx fxsr sse sse2 ss ht constant_tsc up pni
>
> bogomips        : 5423.10
>
>
>
>
>
> Thanks
>
> Saravana
>
>
>
> DISCLAIMER:
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Rafał Kupka

2008-Jun-19 17:06 UTC

head link

Re: [Xen-users] Xen shows single processor on a dual core system

On Tue, Jun 17, 2008 at 03:25:19PM +0530, Saravana Kumar K, Bangalore wrote:
Hi,
> Please find xm dmesg below:
[trimmed] > (XEN) Processor #0 6:15 APIC version 20
> (XEN) Enabling APIC mode:  Flat.  Using 0 I/O APICs
> (XEN) BIOS bug, no explicit IRQ entries, using default mptable. (tell your
hw vendor)
See if there is a BIOS upgrade for your motherboard.

Regards,
Kupson
-- 
Great software without the knowledge to run it is pretty useless.
(Linux Gazette #1)

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