Hello all ! I want to patch the kdb (Build-in Kernel Debugger) to my kernel (packet 2.6.24) for debugging. I performed: 1. Make directory linux-source at /home/ngocct and extract packet linux source 2.6.24 to this directory. mkdir linux-source/ tar jxvf linux-source-2.6.24.tar.bz2 -C /home/ngocct/linux-source 2. change to linux-source directory then patch two kdb patches to kernel source. patch -p1 < /home/ngocct/patch/kdb-v4.4-2.6.24-common-2 patch -p1 < /home/ngocct/patch/kdb-v4.4-2.6.24-x86-2 no error or warming to reported. 3. config make menuconfig // then I load my old config and change: CONFIG_KDB=y Setting this also sets CONFIG_KALLSYMS=y. CONFIG_KDB_MODULES=n KDB may be extended, compiling kdb/modules. CONFIG_KDB_OFF=n CONFIG_KALLSYMS=y CONFIG_FRAME_POINTER=y // save to -> .config 4. Buil kernel make-kpkg clean fakeroot make-kpkg --initrd --append-to-version=-custom kernel_image kernel_headers 5. Install The New Kernel dpkg -i linux-image-2.6.24.3-custom_2.6.24.3-custom-10.00.Custom_i386.deb dpkg -i linux-headers-2.6.24.3-custom_2.6.24.3-custom-10.00.Custom_i386.deb // ok and in /boot/gru/menu.lst I saw: title Ubuntu 8.04.1, kernel 2.6.24.3-custom root (hd0,2) kernel /boot/vmlinuz-2.6.24.3-custom root=UUID=1544a9fa-0c0d-4ba8-9903-db7e892e2b77 ro quiet splash initrd /boot/initrd.img-2.6.24.3-custom quiet title Ubuntu 8.04.1, kernel 2.6.24.3-custom (recovery mode) root (hd0,2) kernel /boot/vmlinuz-2.6.24.3-custom root=UUID=1544a9fa-0c0d-4ba8-9903-db7e892e2b77 ro single initrd /boot/initrd.img-2.6.24.3-custom 6. Reboot sudo reboot 7. Problem apter reboot I check the kdb status ( in user-mode). cat /proc/sys/kernel/kdb // screen : 1 I login as root then invoke the kdb by press Pause on keyboard, but the kdb don't invoke. The system is halted and two lamp Caps Lock and Scroll Lock is blinking. I must hard reset. Please help me to fix this problem and can debugging my kernel by kdb. Thank a lot !
