On Sun, Nov 4, 2012 at 9:21 PM, Aishwarya Sengottuvelan <aishwarya.velan@gmail.com> wrote:
HI, I am trying to complie the kernel with CONFIG_STRICT_DEVMEM option enabled. I have done the following
1) In menuconfig i excluded Filter Access To dev/mem . I can see # CONFIG_STRICT_DEVMEM is not set in .config 2) i did make clean;make;make modules_install,make install & then reboot 3) When i use mmap(/dev/mem,,,,) from user program, i still see the code(drivers/char/mem.c) executed within #ifdef CONFIG_STRICT_DEVMEM
this is my dmesg |tail -10 output Program outmap tried to access /dev/mem between [mem 0x371fc000-0x371fcfff]
What am i doing wrong?
--Thanks
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Hi Have you booted with updated linux kernel? I suppose you have to make choose in you bootloader menu, otherwise default configuration might be used. On runtime you can easily check what are you running upon by $ uname -a or $ cat /proc/version Best wishes Vladimir Murzin