questions about kernprof

[hwidarta@xxxxxxxxx]

Dear Sir,

I have patched profile-0.7 on linux kernel 2.4.0-test5.
It's fine to run all the initial kernel at boot time.
But there are some problems with kernprof program;
When I type "kernprof -b -t <mode>" with
(1)kernprof-0.8-1
     [root@abc /]# kernprof -b -t cc
     kernprof: kernel does not support call count mode
     [root@abc /]# kernprof -b -t ct
     kernprof: kernel does not support call backtrace mode
(2)kernprof-0.8-2
     Unable to handle kernel NULL pointer dereference
     (then the system have no response)
the other problem is:
(3)kernprof-0.9
     [root@abc kernprof]# make
     gcc -c -O2 -fomit-frame-pointer -I/usr/include kernprof.c
     kernprof.c:39: linux/tasks.h: No such file or directory
     make: *** [kernprof.o] Error 1
     (Is there any relation with SMP?)
     
What's the problem ?
I'm sure enable the PROFILING, FRAME_POINTER, M_COUNT options;
and have created the character special device /dev/profile.

Thanks,
Hendra W
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