cleanup: extract functions from kdump.sh to kdump-lib-initramfs.sh
Extract functions from kdump.sh, and construct kdump-lib-initramfs.sh as kdump common functions/varaibles library. kdump-lib-initramfs.sh will include kdump-lib.sh, because it will use the functions from there. IOW, kdump-lib-initramfs.sh will be a superset of kdump-lib.sh So after this cleanup: - scripts running in 1st kernel only have to include kdump-lib.sh - scripts running in 2nd kernel only have to include kdump-lib-initramfs.sh Signed-off-by: WANG Chao <chaowang@redhat.com> Acked-by: Vivek Goyal <vgoyal@redhat.com> Acked-by: Dave Young <dyoung@redhat.com>
This commit is contained in:
WANG Chao
parent
7f2717aa0a
commit
3b27570bea
150
dracut-kdump.sh
150
dracut-kdump.sh
@ -7,30 +7,14 @@ fi
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exec &> /dev/console
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. /lib/dracut-lib.sh
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. /lib/kdump-lib.sh
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. /lib/kdump-lib-initramfs.sh
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if [ -f "$initdir/lib/dracut/no-emergency-shell" ]; then
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rm -f -- $initdir/lib/dracut/no-emergency-shell
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fi
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set -o pipefail
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KDUMP_PATH="/var/crash"
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CORE_COLLECTOR=""
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DEFAULT_CORE_COLLECTOR="makedumpfile -l --message-level 1 -d 31"
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DMESG_COLLECTOR="/sbin/vmcore-dmesg"
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DEFAULT_ACTION="reboot -f"
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DATEDIR=`date +%Y.%m.%d-%T`
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HOST_IP='127.0.0.1'
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DUMP_INSTRUCTION=""
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SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
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KDUMP_SCRIPT_DIR="/kdumpscripts"
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DD_BLKSIZE=512
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FINAL_ACTION="reboot -f"
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DUMP_RETVAL=0
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conf_file="/etc/kdump.conf"
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KDUMP_PRE=""
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KDUMP_POST=""
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MOUNTS=""
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export PATH=$PATH:$KDUMP_SCRIPT_DIR
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@ -48,27 +32,6 @@ do_dump()
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return $_ret
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}
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do_umount()
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{
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if [ -n "$MOUNTS" ]; then
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for mount in $MOUNTS; do
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ismounted $mount && umount -R $mount
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done
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fi
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}
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do_final_action()
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{
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do_umount
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eval $FINAL_ACTION
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}
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do_default_action()
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{
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wait_for_loginit
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eval $DEFAULT_ACTION
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}
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do_kdump_pre()
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{
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if [ -n "$KDUMP_PRE" ]; then
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@ -88,39 +51,6 @@ add_dump_code()
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DUMP_INSTRUCTION=$1
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}
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# dump_fs <mount point| device>
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dump_fs()
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{
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local _dev=$(findmnt -k -f -n -r -o SOURCE $1)
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local _mp=$(findmnt -k -f -n -r -o TARGET $1)
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echo "kdump: dump target is $_dev"
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if [ -z "$_mp" ]; then
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echo "kdump: error: Dump target $_dev is not mounted."
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return 1
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fi
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MOUNTS="$MOUNTS $_mp"
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# Remove -F in makedumpfile case. We don't want a flat format dump here.
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[[ $CORE_COLLECTOR = *makedumpfile* ]] && CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e "s/-F//g"`
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echo "kdump: saving to $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
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mount -o remount,rw $_mp || return 1
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mkdir -p $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR || return 1
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save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
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echo "kdump: saving vmcore"
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$CORE_COLLECTOR /proc/vmcore $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore-incomplete || return 1
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mv $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore-incomplete $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore
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sync
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echo "kdump: saving vmcore complete"
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return 0
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}
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dump_raw()
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{
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local _raw=$1
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@ -170,26 +100,6 @@ dump_ssh()
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return 0
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}
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save_vmcore_dmesg_fs() {
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local _dmesg_collector=$1
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local _path=$2
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echo "kdump: saving vmcore-dmesg.txt"
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$_dmesg_collector /proc/vmcore > ${_path}/vmcore-dmesg-incomplete.txt
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_exitcode=$?
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if [ $_exitcode -eq 0 ]; then
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mv ${_path}/vmcore-dmesg-incomplete.txt ${_path}/vmcore-dmesg.txt
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# Make sure file is on disk. There have been instances where later
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# saving vmcore failed and system rebooted without sync and there
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# was no vmcore-dmesg.txt available.
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sync
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echo "kdump: saving vmcore-dmesg.txt complete"
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else
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echo "kdump: saving vmcore-dmesg.txt failed"
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fi
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}
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save_vmcore_dmesg_ssh() {
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local _dmesg_collector=$1
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local _path=$2
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@ -208,7 +118,6 @@ save_vmcore_dmesg_ssh() {
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fi
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}
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get_host_ip()
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{
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local _host
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@ -228,61 +137,12 @@ get_host_ip()
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read_kdump_conf()
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{
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if [ ! -f "$conf_file" ]; then
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echo "kdump: $conf_file not found"
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if [ ! -f "$KDUMP_CONF" ]; then
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echo "kdump: $KDUMP_CONF not found"
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return
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fi
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# first get the necessary variables
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while read config_opt config_val;
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do
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# remove inline comments after the end of a directive.
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config_val=$(strip_comments $config_val)
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case "$config_opt" in
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path)
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KDUMP_PATH="$config_val"
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;;
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core_collector)
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[ -n "$config_val" ] && CORE_COLLECTOR="$config_val"
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;;
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sshkey)
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if [ -f "$config_val" ]; then
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SSH_KEY_LOCATION=$config_val
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fi
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;;
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kdump_pre)
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KDUMP_PRE="$config_val"
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;;
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kdump_post)
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KDUMP_POST="$config_val"
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;;
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fence_kdump_args)
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FENCE_KDUMP_ARGS="$config_val"
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;;
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fence_kdump_nodes)
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FENCE_KDUMP_NODES="$config_val"
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;;
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default)
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case $config_val in
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shell)
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DEFAULT_ACTION="_emergency_shell kdump"
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;;
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reboot)
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DEFAULT_ACTION="do_umount; reboot -f"
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;;
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halt)
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DEFAULT_ACTION="do_umount; halt -f"
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;;
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poweroff)
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DEFAULT_ACTION="do_umount; poweroff -f"
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;;
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dump_to_rootfs)
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DEFAULT_ACTION="dump_fs $NEWROOT"
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;;
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esac
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;;
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esac
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done < $conf_file
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get_kdump_confs
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# rescan for add code for dump target
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while read config_opt config_val;
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@ -300,7 +160,7 @@ read_kdump_conf()
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add_dump_code "dump_ssh $SSH_KEY_LOCATION $config_val"
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;;
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esac
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done < $conf_file
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done < $KDUMP_CONF
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}
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fence_kdump_notify()
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@ -580,6 +580,7 @@ install() {
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inst "/sbin/vmcore-dmesg" "/sbin/vmcore-dmesg"
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inst_hook pre-pivot 9999 "$moddir/kdump.sh"
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inst "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh"
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inst "/lib/kdump/kdump-lib-initramfs.sh" "/lib/kdump-lib-initramfs.sh"
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# Check for all the devices and if any device is iscsi, bring up iscsi
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# target. Ideally all this should be pushed into dracut iscsi module
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151
kdump-lib-initramfs.sh
Executable file
151
kdump-lib-initramfs.sh
Executable file
@ -0,0 +1,151 @@
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# These variables and functions are useful in 2nd kernel
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. /lib/dracut-lib.sh
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. /lib/kdump-lib.sh
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KDUMP_PATH="/var/crash"
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CORE_COLLECTOR=""
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DEFAULT_CORE_COLLECTOR="makedumpfile -l --message-level 1 -d 31"
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DMESG_COLLECTOR="/sbin/vmcore-dmesg"
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DEFAULT_ACTION="reboot -f"
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DATEDIR=`date +%Y.%m.%d-%T`
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HOST_IP='127.0.0.1'
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DUMP_INSTRUCTION=""
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SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
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KDUMP_SCRIPT_DIR="/kdumpscripts"
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DD_BLKSIZE=512
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FINAL_ACTION="reboot -f"
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KDUMP_CONF="/etc/kdump.conf"
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KDUMP_PRE=""
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KDUMP_POST=""
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NEWROOT="/sysroot"
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MOUNTS=""
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get_kdump_confs()
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{
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local config_opt config_val
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while read config_opt config_val;
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do
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# remove inline comments after the end of a directive.
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config_val=$(strip_comments $config_val)
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case "$config_opt" in
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path)
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KDUMP_PATH="$config_val"
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;;
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core_collector)
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[ -n "$config_val" ] && CORE_COLLECTOR="$config_val"
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;;
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sshkey)
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if [ -f "$config_val" ]; then
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SSH_KEY_LOCATION=$config_val
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fi
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;;
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kdump_pre)
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KDUMP_PRE="$config_val"
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;;
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kdump_post)
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KDUMP_POST="$config_val"
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;;
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fence_kdump_args)
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FENCE_KDUMP_ARGS="$config_val"
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;;
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fence_kdump_nodes)
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FENCE_KDUMP_NODES="$config_val"
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;;
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default)
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case $config_val in
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shell)
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DEFAULT_ACTION="_emergency_shell kdump"
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;;
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reboot)
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DEFAULT_ACTION="do_umount; reboot -f"
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;;
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halt)
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DEFAULT_ACTION="do_umount; halt -f"
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;;
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poweroff)
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DEFAULT_ACTION="do_umount; poweroff -f"
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;;
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dump_to_rootfs)
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DEFAULT_ACTION="dump_fs $NEWROOT"
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;;
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esac
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;;
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esac
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done < $KDUMP_CONF
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}
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# dump_fs <mount point| device>
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dump_fs()
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{
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local _dev=$(findmnt -k -f -n -r -o SOURCE $1)
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local _mp=$(findmnt -k -f -n -r -o TARGET $1)
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echo "kdump: dump target is $_dev"
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if [ -z "$_mp" ]; then
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echo "kdump: error: Dump target $_dev is not mounted."
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return 1
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fi
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MOUNTS="$MOUNTS $_mp"
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# Remove -F in makedumpfile case. We don't want a flat format dump here.
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[[ $CORE_COLLECTOR = *makedumpfile* ]] && CORE_COLLECTOR=`echo $CORE_COLLECTOR | sed -e "s/-F//g"`
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echo "kdump: saving to $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
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mount -o remount,rw $_mp || return 1
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mkdir -p $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR || return 1
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save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/"
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echo "kdump: saving vmcore"
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$CORE_COLLECTOR /proc/vmcore $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore-incomplete || return 1
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mv $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore-incomplete $_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/vmcore
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sync
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echo "kdump: saving vmcore complete"
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}
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save_vmcore_dmesg_fs() {
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local _dmesg_collector=$1
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local _path=$2
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echo "kdump: saving vmcore-dmesg.txt"
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$_dmesg_collector /proc/vmcore > ${_path}/vmcore-dmesg-incomplete.txt
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_exitcode=$?
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if [ $_exitcode -eq 0 ]; then
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mv ${_path}/vmcore-dmesg-incomplete.txt ${_path}/vmcore-dmesg.txt
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# Make sure file is on disk. There have been instances where later
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# saving vmcore failed and system rebooted without sync and there
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# was no vmcore-dmesg.txt available.
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sync
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echo "kdump: saving vmcore-dmesg.txt complete"
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else
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echo "kdump: saving vmcore-dmesg.txt failed"
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fi
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}
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do_umount()
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{
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if [ -n "$MOUNTS" ]; then
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for mount in $MOUNTS; do
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ismounted $mount && umount -R $mount
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done
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fi
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}
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do_default_action()
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{
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wait_for_loginit
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eval $DEFAULT_ACTION
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}
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do_final_action()
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{
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do_umount
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eval $FINAL_ACTION
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}
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@ -27,6 +27,7 @@ Source20: kdump-lib.sh
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Source21: kdump-in-cluster-environment.txt
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Source22: kdump-dep-generator.sh
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Source23: kdump-anaconda-addon-001-4-g03898ef.tar.gz
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Source24: kdump-lib-initramfs.sh
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#######################################
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# These are sources for mkdumpramfs
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@ -178,6 +179,7 @@ install -m 644 kexec/kexec.8 $RPM_BUILD_ROOT%{_mandir}/man8/kexec.8
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install -m 755 %{SOURCE11} $RPM_BUILD_ROOT%{_datadir}/kdump/firstboot_kdump.py
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install -m 644 %{SOURCE12} $RPM_BUILD_ROOT%{_mandir}/man8/mkdumprd.8
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install -m 755 %{SOURCE20} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib.sh
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install -m 755 %{SOURCE24} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib-initramfs.sh
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%ifnarch s390x
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# For s390x the ELF header is created in the kdump kernel and therefore kexec
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# udev rules are not required
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