Bug 493047 - Oprofile - Add Dunnington processors to the list of ppro cores
Oprofile - Add Dunnington processors to the list of ppro cores
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kernel (Show other bugs)
All Linux
low Severity medium
: rc
: ---
Assigned To: Jiri Olsa
chen yuwen
Depends On:
  Show dependency treegraph
Reported: 2009-03-31 09:18 EDT by Mike
Modified: 2011-01-13 15:46 EST (History)
6 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2011-01-13 15:46:43 EST
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
adding Dunnigton and Merom-L model to operofile cpu_type (780 bytes, application/octet-stream)
2010-09-10 12:04 EDT, Jiri Olsa
no flags Details

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2011:0017 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.6 kernel security and bug fix update 2011-01-13 05:37:42 EST

  None (edit)
Description Mike 2009-03-31 09:18:17 EDT
Description of problem:
Dunnington processors are not recognized as core2 architecture processors in the oprofile module.  Adding a case statement in nmi_int.c for CPUs with model 29 resolves the issue.

Version-Release number of selected component (if applicable):

How reproducible:
Run "opcontrol --list-events"

Steps to Reproduce:
Actual results:
#opcontrol --list-events
Using timer interrupt.

Expected results:
#opcontrol --list-events
oprofile: available events for CPU type "Core 2"

See Intel Architecture Developer's Manual Volume 3, Appendix A and
Intel Architecture Optimization Reference Manual (730795-001)

CPU_CLK_UNHALTED: (counter: all)

Additional info:

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 29
model name      : Intel(R) Xeon(R) CPU           E7450  @ 2.40GHz
stepping        : 1
cpu MHz         : 2400.093
cache size      : 12288 KB
physical id     : 0
siblings        : 6
core id         : 0
cpu cores       : 6
fpu             : yes
fpu_exception   : yes
cpuid level     : 11
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 syscall lm constant_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
bogomips        : 4803.89
clflush size    : 64
cache_alignment : 64
address sizes   : 40 bits physical, 48 bits virtual
power management:
Comment 1 John Villalovos 2010-04-14 13:04:58 EDT
Before this could be done, it would need to be pushed to the upstream linux kernel.  Which I'm looking into.
Comment 2 Jiri Olsa 2010-09-10 12:04:59 EDT
Created attachment 446545 [details]
adding Dunnigton and Merom-L model to operofile cpu_type
Comment 3 Jiri Olsa 2010-09-10 12:11:19 EDT

please check the attached patch (comment 2).
Does anyone have access to Dunnington model I did not find it within
my machine circle.. if possible please try kernels in:


and let me know if it works.. I have upstream patch ready, but would like
to hear if it works before I send it out ;)

Comment 4 John Villalovos 2010-09-10 12:32:59 EDT
This is a Dunnington system:
Comment 5 Jiri Olsa 2010-09-21 03:36:44 EDT
tested and sent upstream:
Comment 7 RHEL Product and Program Management 2010-09-24 17:49:12 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
Comment 10 Jarod Wilson 2010-09-27 15:11:11 EDT
in kernel-2.6.18-225.el5
You can download this test kernel (or newer) from http://people.redhat.com/jwilson/el5

Detailed testing feedback is always welcomed.
Comment 12 chen yuwen 2010-12-05 22:00:03 EST
Reproduced on kernel 2.6.18-164.el5.
System: intel-s3e3432-01.rhts.eng.bos.redhat.com
OS: RHEL5-Server-U4

# opcontrol --list-events
Using timer interrupt.

Verified on kernel 2.6.18-230.el5.

# opcontrol --list-events
oprofile: available events for CPU type "Core 2"
Comment 14 errata-xmlrpc 2011-01-13 15:46:43 EST
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


Note You need to log in before you can comment on or make changes to this bug.