记录一下qemu调试kernel的东西

858 gdb ./vmlinux   859 target remote localhost:1234   860 gdbserver 1234   861 yum install gdbserver   862 gdb vmlinux   863 gdb vmlinux   864 gdb vmlinux   865 vi .config   866 vi .config   867 make menuconfig   868 vi .config   869 make   870 gdb vmlinux   871 make menuconfig   872 vi .config   873 vi .config   874 make   875 vi .config   876 make   877 gdb vmlinux   878 poweroff;exit   879 cd /opt/linux-2.6/   880 ls   881 git pull   882 cd /opt/   883 ls   884 cd /qemu/   885 ls   886 history |grep qemu   887 qemu --help   888 qemu --kernel linux-0.2.img   889 qemu --kernel linux-0.2.img   890 qemu -hda linux-0.2.img   891 qemu -hda linux-0.2.img   892 qemu -hda linux-0.2.img   893 qemu --kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda linux-0.2.img   894 qemu --kernel /opt/linux-2.6/arch/x86/boot/bzImage --initrd initrd.img.gz -hda linux-0.2.img   895 qemu --kernel /opt/linux-2.6/arch/x86/boot/bzImage --initrd initrd.img.gz   896 qemu --kernel linux-0.2.img   897 qemu -hda linux-0.2.img   898 qemu -hda linux-0.2.img   899 qemu -hda linux-0.2.img   900 qemu -hda linux-0.2.img -net nic   901 qemu -hda linux-0.2.img -net user   902 qemu -hda linux-0.2.img -net nice,bridge   903 qemu -hda linux-0.2.img -net nice,mode=bridge   904 qemu -hda linux-0.2.img -net nic,mode=bridge   905 qemu -hda linux-0.2.img -user-net   906 qemu -hda linux-0.2.img -net user   907 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup   908 ifconfig   909 qemu -hda linux-0.2.img -net nic -net tun,ifname=tap0,script=/etc/qemu-ifup   910 qemu -hda linux-0.2.img -net nic -net /dev/net/tun,ifname=tap0,script=/etc/qemu-ifup   911 vi /dev/net/tun   912 ll /dev/net/tun   913 vi /etc/qemu-ifup   914 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup   915 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup   916 modprobe tun   917 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup   918 ifconfig   919 qemu -hda linux-0.2.img -net nic,macaddr=00:00:00:00:00:04 -net user   920 qemu --kernel /opt/linux-2.6/arch/x86/boot/bzImage --initrd initrd.img.gz   921 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup   922 qemu -hda linux-0.2.img -net nic -net tap,ifname=tap0,script=/etc/qemu-ifup qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda linux-0.2.img -append "root/dev/hda"   923 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda linux-0.2.img -append "root/dev/hda"   924 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -sda linux-0.2.img -append "root/dev/hda"   925 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda linux-0.2.img -append "root/dev/hda"   926 cd   927 ls   928 cp /home/liuqi/busybox-initramfs-dist.tar.bz2 .   929 tarjxvf busybox-initramfs-dist.tar.bz2   930 tar jxvf busybox-initramfs-dist.tar.bz2   931 ls   932 ls busybox-initramfs   933 ls   934 yum install bridge-utils uml-utilities vtun   935 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero   936 yum install bridge-utils uml-utilities vtun   937 modprobe tun   938 /etc/init.d/vtun start   939 chmod a+rw /dev/net/tun   940 brctl addbr br0   941 ifconfig br0 192.168.99.1 netmask 255.255.255.0 up   942 for ((i=0; i < NUM_OF_DEVICES ; i++)); do echo -n "Setting up "; tunctl -b -u $USERID -t qtap$i; brctl addif br0 qtap$i; ifconfig qtap$i up 0.0.0.0 promisc; done   943 /etc/init.d/vtund start   944 /etc/init.d/kvm-network stop   945 ifconfig   946 ifconfig br0 192.168.1.198 netmask 255.255.255.0 up   947 qemu -kernel arch/i386/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   948 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   949 ifconfig br0 192.168.99.1 netmask 255.255.255.0 u   950 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   951 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   952 lsmod |grep tun   953 ls -l /dev/net/tun   954 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap   955 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tun   956 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   957 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=/etc/qemu-ifup   958 vi /etc/qemu-ifup:   959 vi /etc/qemu-ifup   960 vi /etc/qemu-ifup   961 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=/etc/qemu-ifup   962 vi /etc/qemu-ifup   963 chmod 777 /etc/qemu-ifup   964 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=/etc/qemu-ifup   965 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   966 /etc/init.d/kvm-network stop   967 chmod 777 /etc/init.d/kvm-network   968 /etc/init.d/kvm-network stop   969 ls /lib/modules/`uname -r`/kernel/drivers/net/tun.ko   970 /etc/init.d/kvm-network start   971 yum install tunctl   972 /etc/init.d/kvm-network start   973 yum install vtun   974 vtund   975 vi /etc/init.d/kvm-network   976 /etc/init.d/kvm-network start   977 ifconfig   978 /etc/init.d/kvm-network stop   979 vi /etc/init.d/kvm-network   980 /etc/init.d/kvm-network stop   981 /etc/init.d/kvm-network start   982 ifconfig   983 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no   984 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -serial "stdio" -serial "pty" -append '$console kgdbwait kgdboc=ttyS1'   985 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   986 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   987 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -serial "stdio" -serial "pty" -append   988 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -serial "stdio" -serial "pty"   989 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   990 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   991 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   992 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   993 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   994 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   995 qemu -kernel /opt/linux-2.6/arch/x86/boot/bzImage -hda /dev/zero -net nic -net tap,ifname=qtap0,script=no -S   996 service network restart   997 ls   998 history [root@localhost liuqi]# cat /etc/init.d/vtund #!/bin/sh # # vtund     Startup script for the virtual tunnel daemon # # chkconfig: - 55 45 # description: Virtual Tunnel Daemon provides the facility to create \ # virtual tunnels over TCP/IP networks and allows for \ # shaping, compression, and encryption of tunneled traffic. ### BEGIN INIT INFO # Provides: # Required-Start: # Required-Stop: # Should-Start: # Should-Stop: # Default-Start: # Default-Stop: # Short-Description: # Description: ### END INIT INFO # Source function library. . /etc/rc.d/init.d/functions exec="/usr/sbin/vtund" prog="vtund" config="/etc/vtund.conf" [ -e /etc/sysconfig/$prog ] && . /etc/sysconfig/$prog lockfile=/var/lock/subsys/$prog start() {     [ -x $exec ] || exit 5     [ -f $config ] || exit 6     echo -n $"Starting $prog: "     daemon $exec -s     retval=$?     echo     [ $retval -eq 0 ] && touch $lockfile     return $retval } stop() {     echo -n $"Stopping $prog: "     killproc $prog     retval=$?     echo     [ $retval -eq 0 ] && rm -f $lockfile     return $retval } restart() {     stop     start } reload() {     echo -n $"Reloading config for $prog: "     killproc $prog -HUP     retval=$?     echo     return $retval } force_reload() {     restart } rh_status() {     # run checks to determine if the service is running or use generic status     status $prog } rh_status_q() {     rh_status >/dev/null 2>&1 } case "$1" in     start)         rh_status_q && exit 0         $1         ;;     stop)         rh_status_q || exit 0         $1         ;;     restart)         $1         ;;     reload)         rh_status_q || exit 7         $1         ;;     force-reload)         force_reload         ;;     status)         rh_status         ;;     condrestart|try-restart)         rh_status_q || exit 0         restart         ;;     *)         echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload}"         exit 2 esac exit $? [root@localhost liuqi]# cat /etc/init.d/kvm-network #!/bin/bash # id of the user running qemu (kvm). Make sure you change it appropriately. USERID=1000 # number of TUN/TAP devices to setup NUM_OF_DEVICES=1 case $1 in start)         modprobe tun         /etc/init.d/vtund start         chmod a+rw /dev/net/tun         echo -n "Setting up bridge device br0"         brctl addbr br0         ifconfig br0 192.168.99.1 netmask 255.255.255.0 up         for ((i=0; i < NUM_OF_DEVICES ; i++)); do                 echo -n "Setting up "                 tunctl -b -u $USERID -t qtap$i                 brctl addif br0 qtap$i                 ifconfig qtap$i up 0.0.0.0 promisc         done         ;; stop)         for ((i=0; i < NUM_OF_DEVICES ; i++)); do                 ifconfig qtap$i down                 brctl delif br0 qtap$i                 tunctl -d qtap$i         done         ifconfig br0 down         brctl delbr br0         /etc/init.d/vtund stop         ;; *)         echo "Usage: $(basename $0) (start|stop)"         ;; esac [root@localhost liuqi]#