Re: oprofiled does not start for Xeon 5530 , ubuntu hardy.

[Naresh R. <nr...@pu...>]

Hi  Robert,

I`ve compiled  kernel  2.6.31-12  from this tree 
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git,  with the 
oprofile options set:
CONFIG_OPROFILE=y
CONFIG_OPROFILE_IBS=y
CONFIG_HAVE_OPROFILE=y

But when I try to start ,  I get the following error:

opcontrol --start --verbose
Parameters used:
SESSION_DIR /var/lib/oprofile
LOCK_FILE /var/lib/oprofile/lock
SAMPLES_DIR /var/lib/oprofile/samples
CURRENT_SAMPLES_DIR /var/lib/oprofile/samples/current
CPUTYPE i386/core_i7
BUF_SIZE default value
BUF_WATERSHED default value
CPU_BUF_SIZE default value
SEPARATE_LIB 0
SEPARATE_KERNEL 0
SEPARATE_THREAD 0
SEPARATE_CPU 0
CALLGRAPH 0
VMLINUX /usr/src/linux-2.6-xen/vmlinux
KERNEL_RANGE ffffffff81009000,ffffffff81472f77
XENIMAGE /boot/xen-syms-3.4.2
XEN_RANGE ffff828c80100000,ffff828c801cfa9c
Using default event: CPU_CLK_UNHALTED:100000:0:1:1
*
Error: counter 0 not available nmi_watchdog using this resource ? Try:
opcontrol --deinit
echo 0 > /proc/sys/kernel/nmi_watchdog*

I`ve tried --deinit and setting up again, but of no use.  I`ve also 
tried rebooting with "lapic" option.. but still it was of no use.

Any help would be greatly appreciated.

Thanks,
Naresh Rapolu.

Robert Richter wrote:
> On 12.03.10 23:47:27, Naresh Rapolu wrote:
>   
>> For kernel 2.6.24, and oprofile-0.9.5,  ubuntu 8.04 LTS, Xeon 5530.  
>> After the regular installation (applied Xen patch and  ./configure 
>> --with-kernel-support,  make , make install),  opcontrol gives the error 
>> while starting:
>>     
>
> This is a fairly old kernel, Nehalem support has been added to
> v2.6.31. You might want to backport:
>
>  6adf406 oprofile: add support for Core i7 and Atom
>
> -Robert
>
>