issue with timer mode on 2.6.8.1 kernel on notebook.

[Karel G. <kg...@ob...>]

Hello,

I've compiled 2.6.8.1 kernel with oprofile enabled:

# zgrep PROF /proc/config.gz
CONFIG_PROFILING=y
CONFIG_OPROFILE=m
#

and also compiled oprofile 0.8 version. Everything is done on IBM T22
machine with is mobile Pentium III based:

# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 10
cpu MHz         : 995.731
cache size      : 256 KB
fdiv_bug        : no
hlt_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pat pse36 mmx fxsr sse
bogomips        : 1970.17


Now, I would like to follow instruction to start and use oprofile, but the
only thing I can get from it is ``You cannot specify any performance
counter events\nbecause OProfile is in timer mode.''
My session looks:

# ./opcontrol --no-vmlinux
You cannot specify any performance counter events
because OProfile is in timer mode.
# ./opcontrol --start
You cannot specify any performance counter events
because OProfile is in timer mode.
# ./opcontrol --dump
You cannot specify any performance counter events
because OProfile is in timer mode.


Is there anything what I've made wrong? Or is this know issue in oprofile
0.8?

Thanks a lot,

Karel
PS: I'm using ACPI as a PM.
--
Karel Gardas                  kg...@ob...
ObjectSecurity Ltd.           http://www.objectsecurity.com