This is done with `shfmt -w -s dracut-kdump.sh`. There is no behaviour change.
Signed-off-by: Kairui Song kasong@redhat.com --- dracut-kdump.sh | 840 ++++++++++++++++++++++++------------------------ 1 file changed, 421 insertions(+), 419 deletions(-)
diff --git a/dracut-kdump.sh b/dracut-kdump.sh index 692d20f4..4364de14 100755 --- a/dracut-kdump.sh +++ b/dracut-kdump.sh @@ -5,7 +5,7 @@
# continue here only if we have to save dump. if [ -f /etc/fadump.initramfs ] && [ ! -f /proc/device-tree/rtas/ibm,kernel-dump ] && [ ! -f /proc/device-tree/ibm,opal/dump/mpipl-boot ]; then - exit 0 + exit 0 fi
. /lib/dracut-lib.sh @@ -14,8 +14,8 @@ fi
#initiate the kdump logger if ! dlog_init; then - echo "failed to initiate the kdump logger." - exit 1 + echo "failed to initiate the kdump logger." + exit 1 fi
KDUMP_PATH="/var/crash" @@ -46,535 +46,537 @@ kdump_read_conf > $KDUMP_CONF_PARSED
get_kdump_confs() { - while read -r config_opt config_val; do - # remove inline comments after the end of a directive. - case "$config_opt" in - path) - KDUMP_PATH="$config_val" - ;; - core_collector) - [ -n "$config_val" ] && CORE_COLLECTOR="$config_val" - ;; - sshkey) - if [ -f "$config_val" ]; then - SSH_KEY_LOCATION=$config_val - fi - ;; - kdump_pre) - KDUMP_PRE="$config_val" - ;; - kdump_post) - KDUMP_POST="$config_val" - ;; - fence_kdump_args) - FENCE_KDUMP_ARGS="$config_val" - ;; - fence_kdump_nodes) - FENCE_KDUMP_NODES="$config_val" - ;; - failure_action|default) - case $config_val in - shell) - FAILURE_ACTION="kdump_emergency_shell" - ;; - reboot) - FAILURE_ACTION="systemctl reboot -f && exit" - ;; - halt) - FAILURE_ACTION="halt && exit" - ;; - poweroff) - FAILURE_ACTION="systemctl poweroff -f && exit" - ;; - dump_to_rootfs) - FAILURE_ACTION="dump_to_rootfs" - ;; - esac - ;; - final_action) - case $config_val in - reboot) - FINAL_ACTION="systemctl reboot -f" - ;; - halt) - FINAL_ACTION="halt" - ;; - poweroff) - FINAL_ACTION="systemctl poweroff -f" - ;; - esac - ;; - esac - done < "$KDUMP_CONF_PARSED" - - if [ -z "$CORE_COLLECTOR" ]; then - CORE_COLLECTOR="$DEFAULT_CORE_COLLECTOR" - if is_ssh_dump_target || is_raw_dump_target; then - CORE_COLLECTOR="$CORE_COLLECTOR -F" - fi - fi + while read -r config_opt config_val; do + # remove inline comments after the end of a directive. + case "$config_opt" in + path) + KDUMP_PATH="$config_val" + ;; + core_collector) + [ -n "$config_val" ] && CORE_COLLECTOR="$config_val" + ;; + sshkey) + if [ -f "$config_val" ]; then + SSH_KEY_LOCATION=$config_val + fi + ;; + kdump_pre) + KDUMP_PRE="$config_val" + ;; + kdump_post) + KDUMP_POST="$config_val" + ;; + fence_kdump_args) + FENCE_KDUMP_ARGS="$config_val" + ;; + fence_kdump_nodes) + FENCE_KDUMP_NODES="$config_val" + ;; + failure_action | default) + case $config_val in + shell) + FAILURE_ACTION="kdump_emergency_shell" + ;; + reboot) + FAILURE_ACTION="systemctl reboot -f && exit" + ;; + halt) + FAILURE_ACTION="halt && exit" + ;; + poweroff) + FAILURE_ACTION="systemctl poweroff -f && exit" + ;; + dump_to_rootfs) + FAILURE_ACTION="dump_to_rootfs" + ;; + esac + ;; + final_action) + case $config_val in + reboot) + FINAL_ACTION="systemctl reboot -f" + ;; + halt) + FINAL_ACTION="halt" + ;; + poweroff) + FINAL_ACTION="systemctl poweroff -f" + ;; + esac + ;; + esac + done < "$KDUMP_CONF_PARSED" + + if [ -z "$CORE_COLLECTOR" ]; then + CORE_COLLECTOR="$DEFAULT_CORE_COLLECTOR" + if is_ssh_dump_target || is_raw_dump_target; then + CORE_COLLECTOR="$CORE_COLLECTOR -F" + fi + fi }
# store the kexec kernel log to a file. save_log() { - dmesg -T > $KDUMP_LOG_FILE + dmesg -T > $KDUMP_LOG_FILE
- if command -v journalctl > /dev/null; then - journalctl -ab >> $KDUMP_LOG_FILE - fi - chmod 600 $KDUMP_LOG_FILE + if command -v journalctl > /dev/null; then + journalctl -ab >> $KDUMP_LOG_FILE + fi + chmod 600 $KDUMP_LOG_FILE }
# $1: dump path, must be a mount point dump_fs() { - ddebug "dump_fs _mp=$1" - - if ! is_mounted "$1"; then - dinfo "dump path '$1' is not mounted, trying to mount..." - if ! mount --target "$1"; then - derror "failed to dump to '$1', it's not a mount point!" - return 1 - fi - fi - - # Remove -F in makedumpfile case. We don't want a flat format dump here. - case $CORE_COLLECTOR in - *makedumpfile* ) - CORE_COLLECTOR=$(echo "$CORE_COLLECTOR" | sed -e "s/-F//g") - ;; - esac - - _dump_fs_path=$(echo "$1/$KDUMP_PATH/$HOST_IP-$DATEDIR/" | tr -s /) - dinfo "saving to $_dump_fs_path" - - # Only remount to read-write mode if the dump target is mounted read-only. - _dump_mnt_op=$(get_mount_info OPTIONS target "$1" -f) - case $_dump_mnt_op in - ro* ) - dinfo "Remounting the dump target in rw mode." - mount -o remount,rw "$1" || return 1 - ;; - esac - - mkdir -p "$_dump_fs_path" || return 1 - - save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_dump_fs_path" - save_opalcore_fs "$_dump_fs_path" - - dinfo "saving vmcore" - $CORE_COLLECTOR /proc/vmcore "$_dump_fs_path/vmcore-incomplete" - _dump_exitcode=$? - if [ $_dump_exitcode -eq 0 ]; then - mv "$_dump_fs_path/vmcore-incomplete" "$_dump_fs_path/vmcore" - sync - dinfo "saving vmcore complete" - else - derror "saving vmcore failed, exitcode:$_dump_exitcode" - fi - - dinfo "saving the $KDUMP_LOG_FILE to $_dump_fs_path/" - save_log - if ! mv "$KDUMP_LOG_FILE" "$_dump_fs_path/"; then - return 1 - fi - - # improper kernel cmdline can cause the failure of echo, we can ignore this kind of failure - return 0 + ddebug "dump_fs _mp=$1" + + if ! is_mounted "$1"; then + dinfo "dump path '$1' is not mounted, trying to mount..." + if ! mount --target "$1"; then + derror "failed to dump to '$1', it's not a mount point!" + return 1 + fi + fi + + # Remove -F in makedumpfile case. We don't want a flat format dump here. + case $CORE_COLLECTOR in + *makedumpfile*) + CORE_COLLECTOR=$(echo "$CORE_COLLECTOR" | sed -e "s/-F//g") + ;; + esac + + _dump_fs_path=$(echo "$1/$KDUMP_PATH/$HOST_IP-$DATEDIR/" | tr -s /) + dinfo "saving to $_dump_fs_path" + + # Only remount to read-write mode if the dump target is mounted read-only. + _dump_mnt_op=$(get_mount_info OPTIONS target "$1" -f) + case $_dump_mnt_op in + ro*) + dinfo "Remounting the dump target in rw mode." + mount -o remount,rw "$1" || return 1 + ;; + esac + + mkdir -p "$_dump_fs_path" || return 1 + + save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_dump_fs_path" + save_opalcore_fs "$_dump_fs_path" + + dinfo "saving vmcore" + $CORE_COLLECTOR /proc/vmcore "$_dump_fs_path/vmcore-incomplete" + _dump_exitcode=$? + if [ $_dump_exitcode -eq 0 ]; then + mv "$_dump_fs_path/vmcore-incomplete" "$_dump_fs_path/vmcore" + sync + dinfo "saving vmcore complete" + else + derror "saving vmcore failed, exitcode:$_dump_exitcode" + fi + + dinfo "saving the $KDUMP_LOG_FILE to $_dump_fs_path/" + save_log + if ! mv "$KDUMP_LOG_FILE" "$_dump_fs_path/"; then + return 1 + fi + + # improper kernel cmdline can cause the failure of echo, we can ignore this kind of failure + return 0 }
# $1: dmesg collector # $2: dump path -save_vmcore_dmesg_fs() { - dinfo "saving vmcore-dmesg.txt to $2" - if $1 /proc/vmcore > "$2/vmcore-dmesg-incomplete.txt"; then - mv "$2/vmcore-dmesg-incomplete.txt" "$2/vmcore-dmesg.txt" - chmod 600 "$2/vmcore-dmesg.txt" - - # Make sure file is on disk. There have been instances where later - # saving vmcore failed and system rebooted without sync and there - # was no vmcore-dmesg.txt available. - sync - dinfo "saving vmcore-dmesg.txt complete" - else - if [ -f "$2/vmcore-dmesg-incomplete.txt" ]; then - chmod 600 "$2/vmcore-dmesg-incomplete.txt" - fi - derror "saving vmcore-dmesg.txt failed" - fi +save_vmcore_dmesg_fs() +{ + dinfo "saving vmcore-dmesg.txt to $2" + if $1 /proc/vmcore > "$2/vmcore-dmesg-incomplete.txt"; then + mv "$2/vmcore-dmesg-incomplete.txt" "$2/vmcore-dmesg.txt" + chmod 600 "$2/vmcore-dmesg.txt" + + # Make sure file is on disk. There have been instances where later + # saving vmcore failed and system rebooted without sync and there + # was no vmcore-dmesg.txt available. + sync + dinfo "saving vmcore-dmesg.txt complete" + else + if [ -f "$2/vmcore-dmesg-incomplete.txt" ]; then + chmod 600 "$2/vmcore-dmesg-incomplete.txt" + fi + derror "saving vmcore-dmesg.txt failed" + fi }
# $1: dump path -save_opalcore_fs() { - if [ ! -f $OPALCORE ]; then - # Check if we are on an old kernel that uses a different path - if [ -f /sys/firmware/opal/core ]; then - OPALCORE="/sys/firmware/opal/core" - else - return 0 - fi - fi - - dinfo "saving opalcore:$OPALCORE to $1/opalcore" - if ! cp $OPALCORE "$1/opalcore"; then - derror "saving opalcore failed" - return 1 - fi - - sync - dinfo "saving opalcore complete" - return 0 +save_opalcore_fs() +{ + if [ ! -f $OPALCORE ]; then + # Check if we are on an old kernel that uses a different path + if [ -f /sys/firmware/opal/core ]; then + OPALCORE="/sys/firmware/opal/core" + else + return 0 + fi + fi + + dinfo "saving opalcore:$OPALCORE to $1/opalcore" + if ! cp $OPALCORE "$1/opalcore"; then + derror "saving opalcore failed" + return 1 + fi + + sync + dinfo "saving opalcore complete" + return 0 }
dump_to_rootfs() {
- if [ "$(systemctl status dracut-initqueue | sed -n "s/^\s*Active: (\S*)\s.*$/\1/p")" = "inactive" ]; then - dinfo "Trying to bring up initqueue for rootfs mount" - systemctl start dracut-initqueue - fi - - dinfo "Clean up dead systemd services" - systemctl cancel - dinfo "Waiting for rootfs mount, will timeout after 90 seconds" - systemctl start --no-block sysroot.mount - - _loop=0 - while [ $_loop -lt 90 ] && ! is_mounted /sysroot; do - sleep 1 - _loop=$((_loop + 1)) - done - - if ! is_mounted /sysroot; then - derror "Failed to mount rootfs" - return - fi - - ddebug "NEWROOT=$NEWROOT" - dump_fs $NEWROOT + if [ "$(systemctl status dracut-initqueue | sed -n "s/^\s*Active: (\S*)\s.*$/\1/p")" = "inactive" ]; then + dinfo "Trying to bring up initqueue for rootfs mount" + systemctl start dracut-initqueue + fi + + dinfo "Clean up dead systemd services" + systemctl cancel + dinfo "Waiting for rootfs mount, will timeout after 90 seconds" + systemctl start --no-block sysroot.mount + + _loop=0 + while [ $_loop -lt 90 ] && ! is_mounted /sysroot; do + sleep 1 + _loop=$((_loop + 1)) + done + + if ! is_mounted /sysroot; then + derror "Failed to mount rootfs" + return + fi + + ddebug "NEWROOT=$NEWROOT" + dump_fs $NEWROOT }
kdump_emergency_shell() { - ddebug "Switching to kdump emergency shell..." - - [ -f /etc/profile ] && . /etc/profile - export PS1='kdump:${PWD}# ' - - . /lib/dracut-lib.sh - if [ -f /dracut-state.sh ]; then - . /dracut-state.sh 2>/dev/null - fi - - source_conf /etc/conf.d - - type plymouth >/dev/null 2>&1 && plymouth quit - - source_hook "emergency" - while read -r _tty rest; do - ( - echo - echo - echo 'Entering kdump emergency mode.' - echo 'Type "journalctl" to view system logs.' - echo 'Type "rdsosreport" to generate a sosreport, you can then' - echo 'save it elsewhere and attach it to a bug report.' - echo - echo - ) > "/dev/$_tty" - done < /proc/consoles - sh -i -l - /bin/rm -f -- /.console_lock + ddebug "Switching to kdump emergency shell..." + + [ -f /etc/profile ] && . /etc/profile + export PS1='kdump:${PWD}# ' + + . /lib/dracut-lib.sh + if [ -f /dracut-state.sh ]; then + . /dracut-state.sh 2> /dev/null + fi + + source_conf /etc/conf.d + + type plymouth > /dev/null 2>&1 && plymouth quit + + source_hook "emergency" + while read -r _tty rest; do + ( + echo + echo + echo 'Entering kdump emergency mode.' + echo 'Type "journalctl" to view system logs.' + echo 'Type "rdsosreport" to generate a sosreport, you can then' + echo 'save it elsewhere and attach it to a bug report.' + echo + echo + ) > "/dev/$_tty" + done < /proc/consoles + sh -i -l + /bin/rm -f -- /.console_lock }
do_failure_action() { - dinfo "Executing failure action $FAILURE_ACTION" - eval $FAILURE_ACTION + dinfo "Executing failure action $FAILURE_ACTION" + eval $FAILURE_ACTION }
do_final_action() { - dinfo "Executing final action $FINAL_ACTION" - eval $FINAL_ACTION + dinfo "Executing final action $FINAL_ACTION" + eval $FINAL_ACTION }
do_dump() { - eval $DUMP_INSTRUCTION - _ret=$? + eval $DUMP_INSTRUCTION + _ret=$?
- if [ $_ret -ne 0 ]; then - derror "saving vmcore failed" - fi + if [ $_ret -ne 0 ]; then + derror "saving vmcore failed" + fi
- return $_ret + return $_ret }
do_kdump_pre() { - if [ -n "$KDUMP_PRE" ]; then - "$KDUMP_PRE" - _ret=$? - if [ $_ret -ne 0 ]; then - derror "$KDUMP_PRE exited with $_ret status" - return $_ret - fi - fi - - # if any script fails, it just raises warning and continues - if [ -d /etc/kdump/pre.d ]; then - for file in /etc/kdump/pre.d/*; do - "$file" - _ret=$? - if [ $_ret -ne 0 ]; then - derror "$file exited with $_ret status" - fi - done - fi - return 0 + if [ -n "$KDUMP_PRE" ]; then + "$KDUMP_PRE" + _ret=$? + if [ $_ret -ne 0 ]; then + derror "$KDUMP_PRE exited with $_ret status" + return $_ret + fi + fi + + # if any script fails, it just raises warning and continues + if [ -d /etc/kdump/pre.d ]; then + for file in /etc/kdump/pre.d/*; do + "$file" + _ret=$? + if [ $_ret -ne 0 ]; then + derror "$file exited with $_ret status" + fi + done + fi + return 0 }
do_kdump_post() { - if [ -d /etc/kdump/post.d ]; then - for file in /etc/kdump/post.d/*; do - "$file" "$1" - _ret=$? - if [ $_ret -ne 0 ]; then - derror "$file exited with $_ret status" - fi - done - fi - - if [ -n "$KDUMP_POST" ]; then - "$KDUMP_POST" "$1" - _ret=$? - if [ $_ret -ne 0 ]; then - derror "$KDUMP_POST exited with $_ret status" - fi - fi + if [ -d /etc/kdump/post.d ]; then + for file in /etc/kdump/post.d/*; do + "$file" "$1" + _ret=$? + if [ $_ret -ne 0 ]; then + derror "$file exited with $_ret status" + fi + done + fi + + if [ -n "$KDUMP_POST" ]; then + "$KDUMP_POST" "$1" + _ret=$? + if [ $_ret -ne 0 ]; then + derror "$KDUMP_POST exited with $_ret status" + fi + fi }
# $1: block target, eg. /dev/sda dump_raw() { - [ -b "$1" ] || return 1 + [ -b "$1" ] || return 1
- dinfo "saving to raw disk $1" + dinfo "saving to raw disk $1"
- if ! echo "$CORE_COLLECTOR" | grep -q makedumpfile; then - _src_size=$(ls -l /proc/vmcore | cut -d' ' -f5) - _src_size_mb=$((_src_size / 1048576)) - /kdumpscripts/monitor_dd_progress $_src_size_mb & - fi + if ! echo "$CORE_COLLECTOR" | grep -q makedumpfile; then + _src_size=$(ls -l /proc/vmcore | cut -d' ' -f5) + _src_size_mb=$((_src_size / 1048576)) + /kdumpscripts/monitor_dd_progress $_src_size_mb & + fi
- dinfo "saving vmcore" - $CORE_COLLECTOR /proc/vmcore | dd of="$1" bs=$DD_BLKSIZE >> /tmp/dd_progress_file 2>&1 || return 1 - sync + dinfo "saving vmcore" + $CORE_COLLECTOR /proc/vmcore | dd of="$1" bs=$DD_BLKSIZE >> /tmp/dd_progress_file 2>&1 || return 1 + sync
- dinfo "saving vmcore complete" - return 0 + dinfo "saving vmcore complete" + return 0 }
# $1: ssh key file # $2: ssh address in <user>@<host> format dump_ssh() { - _ret=0 - _ssh_opt="-i $1 -o BatchMode=yes -o StrictHostKeyChecking=yes" - _ssh_dir="$KDUMP_PATH/$HOST_IP-$DATEDIR" - if is_ipv6_address "$2"; then - _scp_address=${2%@*}@"[${2#*@}]" - else - _scp_address=$2 - fi - - dinfo "saving to $2:$_ssh_dir" - - cat /var/lib/random-seed > /dev/urandom - ssh -q $_ssh_opt "$2" mkdir -p "$_ssh_dir" || return 1 - - save_vmcore_dmesg_ssh "$DMESG_COLLECTOR" "$_ssh_dir" "$_ssh_opt" "$2" - dinfo "saving vmcore" - - save_opalcore_ssh "$_ssh_dir" "$_ssh_opt" "$2" "$_scp_address" - - if [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "scp" ]; then - scp -q $_ssh_opt /proc/vmcore "$_scp_address:$_ssh_dir/vmcore-incomplete" - _ret=$? - _vmcore="vmcore" - else - $CORE_COLLECTOR /proc/vmcore | ssh $_ssh_opt "$2" "umask 0077 && dd bs=512 of='$_ssh_dir/vmcore-incomplete'" - _ret=$? - _vmcore="vmcore.flat" - fi - - if [ $_ret -eq 0 ]; then - ssh $_ssh_opt "$2" "mv '$_ssh_dir/vmcore-incomplete' '$_ssh_dir/$_vmcore'" - _ret=$? - if [ $_ret -ne 0 ]; then - derror "moving vmcore failed, exitcode:$_ret" - else - dinfo "saving vmcore complete" - fi - else - derror "saving vmcore failed, exitcode:$_ret" - fi - - dinfo "saving the $KDUMP_LOG_FILE to $2:$_ssh_dir/" - save_log - if ! scp -q $_ssh_opt $KDUMP_LOG_FILE "$_scp_address:$_ssh_dir/"; then - derror "saving log file failed, _exitcode:$_ret" - fi - - return $_ret + _ret=0 + _ssh_opt="-i $1 -o BatchMode=yes -o StrictHostKeyChecking=yes" + _ssh_dir="$KDUMP_PATH/$HOST_IP-$DATEDIR" + if is_ipv6_address "$2"; then + _scp_address=${2%@*}@"[${2#*@}]" + else + _scp_address=$2 + fi + + dinfo "saving to $2:$_ssh_dir" + + cat /var/lib/random-seed > /dev/urandom + ssh -q $_ssh_opt "$2" mkdir -p "$_ssh_dir" || return 1 + + save_vmcore_dmesg_ssh "$DMESG_COLLECTOR" "$_ssh_dir" "$_ssh_opt" "$2" + dinfo "saving vmcore" + + save_opalcore_ssh "$_ssh_dir" "$_ssh_opt" "$2" "$_scp_address" + + if [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "scp" ]; then + scp -q $_ssh_opt /proc/vmcore "$_scp_address:$_ssh_dir/vmcore-incomplete" + _ret=$? + _vmcore="vmcore" + else + $CORE_COLLECTOR /proc/vmcore | ssh $_ssh_opt "$2" "umask 0077 && dd bs=512 of='$_ssh_dir/vmcore-incomplete'" + _ret=$? + _vmcore="vmcore.flat" + fi + + if [ $_ret -eq 0 ]; then + ssh $_ssh_opt "$2" "mv '$_ssh_dir/vmcore-incomplete' '$_ssh_dir/$_vmcore'" + _ret=$? + if [ $_ret -ne 0 ]; then + derror "moving vmcore failed, exitcode:$_ret" + else + dinfo "saving vmcore complete" + fi + else + derror "saving vmcore failed, exitcode:$_ret" + fi + + dinfo "saving the $KDUMP_LOG_FILE to $2:$_ssh_dir/" + save_log + if ! scp -q $_ssh_opt $KDUMP_LOG_FILE "$_scp_address:$_ssh_dir/"; then + derror "saving log file failed, _exitcode:$_ret" + fi + + return $_ret }
# $1: dump path # $2: ssh opts # $3: ssh address in <user>@<host> format # $4: scp address, similiar with ssh address but IPv6 addresses are quoted -save_opalcore_ssh() { - if [ ! -f $OPALCORE ]; then - # Check if we are on an old kernel that uses a different path - if [ -f /sys/firmware/opal/core ]; then - OPALCORE="/sys/firmware/opal/core" - else - return 0 - fi - fi - - dinfo "saving opalcore:$OPALCORE to $3:$1" - - if ! scp $2 $OPALCORE "$4:$1/opalcore-incomplete"; then - derror "saving opalcore failed" - return 1 - fi - - ssh $2 "$3" mv "$1/opalcore-incomplete" "$1/opalcore" - dinfo "saving opalcore complete" - return 0 +save_opalcore_ssh() +{ + if [ ! -f $OPALCORE ]; then + # Check if we are on an old kernel that uses a different path + if [ -f /sys/firmware/opal/core ]; then + OPALCORE="/sys/firmware/opal/core" + else + return 0 + fi + fi + + dinfo "saving opalcore:$OPALCORE to $3:$1" + + if ! scp $2 $OPALCORE "$4:$1/opalcore-incomplete"; then + derror "saving opalcore failed" + return 1 + fi + + ssh $2 "$3" mv "$1/opalcore-incomplete" "$1/opalcore" + dinfo "saving opalcore complete" + return 0 }
# $1: dmesg collector # $2: dump path # $3: ssh opts # $4: ssh address in <user>@<host> format -save_vmcore_dmesg_ssh() { - dinfo "saving vmcore-dmesg.txt to $4:$2" - if $1 /proc/vmcore | ssh $3 "$4" "umask 0077 && dd of='$2/vmcore-dmesg-incomplete.txt'"; then - ssh -q $3 "$4" mv "$2/vmcore-dmesg-incomplete.txt" "$2/vmcore-dmesg.txt" - dinfo "saving vmcore-dmesg.txt complete" - else - derror "saving vmcore-dmesg.txt failed" - fi +save_vmcore_dmesg_ssh() +{ + dinfo "saving vmcore-dmesg.txt to $4:$2" + if $1 /proc/vmcore | ssh $3 "$4" "umask 0077 && dd of='$2/vmcore-dmesg-incomplete.txt'"; then + ssh -q $3 "$4" mv "$2/vmcore-dmesg-incomplete.txt" "$2/vmcore-dmesg.txt" + dinfo "saving vmcore-dmesg.txt complete" + else + derror "saving vmcore-dmesg.txt failed" + fi }
get_host_ip() { - if is_nfs_dump_target || is_ssh_dump_target - then - kdumpnic=$(getarg kdumpnic=) - if [ -z "$kdumpnic" ]; then - derror "failed to get kdumpnic!" - return 1 - fi - if ! kdumphost=$(ip addr show dev "$kdumpnic" | grep '[ ]*inet'); then - derror "wrong kdumpnic: $kdumpnic" - return 1 - fi - kdumphost=$(echo "$kdumphost" | head -n 1 | awk '{print $2}') - kdumphost="${kdumphost%%/*}" - if [ -z "$kdumphost" ]; then - derror "wrong kdumpnic: $kdumpnic" - return 1 - fi - HOST_IP=$kdumphost - fi - return 0 + if is_nfs_dump_target || is_ssh_dump_target; then + kdumpnic=$(getarg kdumpnic=) + if [ -z "$kdumpnic" ]; then + derror "failed to get kdumpnic!" + return 1 + fi + if ! kdumphost=$(ip addr show dev "$kdumpnic" | grep '[ ]*inet'); then + derror "wrong kdumpnic: $kdumpnic" + return 1 + fi + kdumphost=$(echo "$kdumphost" | head -n 1 | awk '{print $2}') + kdumphost="${kdumphost%%/*}" + if [ -z "$kdumphost" ]; then + derror "wrong kdumpnic: $kdumpnic" + return 1 + fi + HOST_IP=$kdumphost + fi + return 0 }
read_kdump_confs() { - if [ ! -f "$KDUMP_CONFIG_FILE" ]; then - derror "$KDUMP_CONFIG_FILE not found" - return - fi - - get_kdump_confs - - # rescan for add code for dump target - while read -r config_opt config_val; - do - # remove inline comments after the end of a directive. - case "$config_opt" in - dracut_args) - config_val=$(get_dracut_args_target "$config_val") - if [ -n "$config_val" ]; then - config_val=$(get_mntpoint_from_target "$config_val") - DUMP_INSTRUCTION="dump_fs $config_val" - fi - ;; - ext[234]|xfs|btrfs|minix|nfs) - config_val=$(get_mntpoint_from_target "$config_val") - DUMP_INSTRUCTION="dump_fs $config_val" - ;; - raw) - DUMP_INSTRUCTION="dump_raw $config_val" - ;; - ssh) - DUMP_INSTRUCTION="dump_ssh $SSH_KEY_LOCATION $config_val" - ;; - esac - done < "$KDUMP_CONF_PARSED" + if [ ! -f "$KDUMP_CONFIG_FILE" ]; then + derror "$KDUMP_CONFIG_FILE not found" + return + fi + + get_kdump_confs + + # rescan for add code for dump target + while read -r config_opt config_val; do + # remove inline comments after the end of a directive. + case "$config_opt" in + dracut_args) + config_val=$(get_dracut_args_target "$config_val") + if [ -n "$config_val" ]; then + config_val=$(get_mntpoint_from_target "$config_val") + DUMP_INSTRUCTION="dump_fs $config_val" + fi + ;; + ext[234] | xfs | btrfs | minix | nfs) + config_val=$(get_mntpoint_from_target "$config_val") + DUMP_INSTRUCTION="dump_fs $config_val" + ;; + raw) + DUMP_INSTRUCTION="dump_raw $config_val" + ;; + ssh) + DUMP_INSTRUCTION="dump_ssh $SSH_KEY_LOCATION $config_val" + ;; + esac + done < "$KDUMP_CONF_PARSED" }
fence_kdump_notify() { - if [ -n "$FENCE_KDUMP_NODES" ]; then - # shellcheck disable=SC2086 - $FENCE_KDUMP_SEND $FENCE_KDUMP_ARGS $FENCE_KDUMP_NODES & - fi + if [ -n "$FENCE_KDUMP_NODES" ]; then + # shellcheck disable=SC2086 + $FENCE_KDUMP_SEND $FENCE_KDUMP_ARGS $FENCE_KDUMP_NODES & + fi }
if [ "$1" = "--error-handler" ]; then - get_kdump_confs - do_failure_action - do_final_action + get_kdump_confs + do_failure_action + do_final_action
- exit $? + exit $? fi
read_kdump_confs fence_kdump_notify
if ! get_host_ip; then - derror "get_host_ip exited with non-zero status!" - exit 1 + derror "get_host_ip exited with non-zero status!" + exit 1 fi
if [ -z "$DUMP_INSTRUCTION" ]; then - DUMP_INSTRUCTION="dump_fs $NEWROOT" + DUMP_INSTRUCTION="dump_fs $NEWROOT" fi
if ! do_kdump_pre; then - derror "kdump_pre script exited with non-zero status!" - do_final_action - # During systemd service to reboot the machine, stop this shell script running - exit 1 + derror "kdump_pre script exited with non-zero status!" + do_final_action + # During systemd service to reboot the machine, stop this shell script running + exit 1 fi make_trace_mem "kdump saving vmcore" '1:shortmem' '2+:mem' '3+:slab' do_dump DUMP_RETVAL=$?
if ! do_kdump_post $DUMP_RETVAL; then - derror "kdump_post script exited with non-zero status!" + derror "kdump_post script exited with non-zero status!" fi
if [ $DUMP_RETVAL -ne 0 ]; then - exit 1 + exit 1 fi
do_final_action