kdump-lib-initramfs.sh: move dump related functions to kdump.sh
upstream: fedora
resolves: bz2003832
conflict: none
commit a1205effaa98c08974c39c3283d191c70337857a
Author: Kairui Song <kasong@redhat.com>
Date: Thu Aug 5 00:59:29 2021 +0800
kdump-lib-initramfs.sh: move dump related functions to kdump.sh
These dump related functions are only used by dracut-kdump.sh.
Signed-off-by: Kairui Song <kasong@redhat.com>
Acked-by: Philipp Rudo <prudo@redhat.com>
Signed-off-by: Tao Liu <ltao@redhat.com>
This commit is contained in:
Tao Liu
parent
13a24c49ab
commit
f9025ca711
288
dracut-kdump.sh
288
dracut-kdump.sh
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@ -4,13 +4,301 @@
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#
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. /lib/dracut-lib.sh
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. /lib/kdump-logger.sh
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. /lib/kdump-lib-initramfs.sh
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#initiate the kdump logger
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dlog_init
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if [ $? -ne 0 ]; then
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echo "failed to initiate the kdump logger."
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exit 1
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fi
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KDUMP_PATH="/var/crash"
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KDUMP_LOG_FILE="/run/initramfs/kexec-dmesg.log"
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CORE_COLLECTOR=""
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DEFAULT_CORE_COLLECTOR="makedumpfile -l --message-level 7 -d 31"
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DMESG_COLLECTOR="/sbin/vmcore-dmesg"
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FAILURE_ACTION="systemctl reboot -f"
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DATEDIR=`date +%Y-%m-%d-%T`
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HOST_IP='127.0.0.1'
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DUMP_INSTRUCTION=""
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SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
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KDUMP_SCRIPT_DIR="/kdumpscripts"
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DD_BLKSIZE=512
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FINAL_ACTION="systemctl reboot -f"
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KDUMP_PRE=""
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KDUMP_POST=""
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NEWROOT="/sysroot"
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OPALCORE="/sys/firmware/opal/mpipl/core"
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set -o pipefail
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DUMP_RETVAL=0
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export PATH=$PATH:$KDUMP_SCRIPT_DIR
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get_kdump_confs()
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{
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local config_opt config_val
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while read config_opt config_val;
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do
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# remove inline comments after the end of a directive.
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case "$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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failure_action|default)
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case $config_val in
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shell)
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FAILURE_ACTION="kdump_emergency_shell"
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;;
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reboot)
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FAILURE_ACTION="systemctl reboot -f && exit"
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;;
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halt)
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FAILURE_ACTION="halt && exit"
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;;
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poweroff)
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FAILURE_ACTION="systemctl poweroff -f && exit"
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;;
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dump_to_rootfs)
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FAILURE_ACTION="dump_to_rootfs"
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;;
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esac
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;;
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final_action)
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case $config_val in
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reboot)
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FINAL_ACTION="systemctl reboot -f"
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;;
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halt)
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FINAL_ACTION="halt"
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;;
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poweroff)
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FINAL_ACTION="systemctl poweroff -f"
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;;
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esac
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;;
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esac
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done <<< "$(kdump_read_conf)"
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if [ -z "$CORE_COLLECTOR" ]; then
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CORE_COLLECTOR="$DEFAULT_CORE_COLLECTOR"
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if is_ssh_dump_target || is_raw_dump_target; then
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CORE_COLLECTOR="$CORE_COLLECTOR -F"
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fi
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fi
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}
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# store the kexec kernel log to a file.
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save_log()
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{
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dmesg -T > $KDUMP_LOG_FILE
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if command -v journalctl > /dev/null; then
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journalctl -ab >> $KDUMP_LOG_FILE
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fi
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chmod 600 $KDUMP_LOG_FILE
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}
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# dump_fs <mount point>
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dump_fs()
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{
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local _exitcode
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local _mp=$1
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local _op=$(get_mount_info OPTIONS target $_mp -f)
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ddebug "dump_fs _mp=$_mp _opts=$_op"
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if ! is_mounted "$_mp"; then
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dinfo "dump path \"$_mp\" is not mounted, trying to mount..."
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mount --target $_mp
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if [ $? -ne 0 ]; then
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derror "failed to dump to \"$_mp\", it's not a mount point!"
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return 1
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fi
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fi
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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 $CORE_COLLECTOR | sed -e "s/-F//g"`
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local _dump_path=$(echo "$_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/" | tr -s /)
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dinfo "saving to $_dump_path"
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# Only remount to read-write mode if the dump target is mounted read-only.
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if [[ "$_op" = "ro"* ]]; then
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dinfo "Remounting the dump target in rw mode."
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mount -o remount,rw $_mp || return 1
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fi
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mkdir -p $_dump_path || return 1
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save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_dump_path"
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save_opalcore_fs "$_dump_path"
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dinfo "saving vmcore"
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$CORE_COLLECTOR /proc/vmcore $_dump_path/vmcore-incomplete
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_exitcode=$?
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if [ $_exitcode -eq 0 ]; then
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mv $_dump_path/vmcore-incomplete $_dump_path/vmcore
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sync
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dinfo "saving vmcore complete"
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else
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derror "saving vmcore failed, _exitcode:$_exitcode"
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fi
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dinfo "saving the $KDUMP_LOG_FILE to $_dump_path/"
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save_log
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mv $KDUMP_LOG_FILE $_dump_path/
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if [ $_exitcode -ne 0 ]; then
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return 1
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fi
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# improper kernel cmdline can cause the failure of echo, we can ignore this kind of failure
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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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dinfo "saving vmcore-dmesg.txt to ${_path}"
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$_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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chmod 600 ${_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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dinfo "saving vmcore-dmesg.txt complete"
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else
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if [ -f ${_path}/vmcore-dmesg-incomplete.txt ]; then
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chmod 600 ${_path}/vmcore-dmesg-incomplete.txt
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fi
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derror "saving vmcore-dmesg.txt failed"
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fi
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}
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save_opalcore_fs() {
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local _path=$1
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if [ ! -f $OPALCORE ]; then
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# Check if we are on an old kernel that uses a different path
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if [ -f /sys/firmware/opal/core ]; then
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OPALCORE="/sys/firmware/opal/core"
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else
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return 0
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fi
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fi
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dinfo "saving opalcore:$OPALCORE to ${_path}/opalcore"
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cp $OPALCORE ${_path}/opalcore
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if [ $? -ne 0 ]; then
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derror "saving opalcore failed"
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return 1
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fi
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sync
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dinfo "saving opalcore complete"
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return 0
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}
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dump_to_rootfs()
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{
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if [[ $(systemctl status dracut-initqueue | sed -n "s/^\s*Active: \(\S*\)\s.*$/\1/p") == "inactive" ]]; then
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dinfo "Trying to bring up initqueue for rootfs mount"
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systemctl start dracut-initqueue
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fi
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dinfo "Clean up dead systemd services"
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systemctl cancel
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dinfo "Waiting for rootfs mount, will timeout after 90 seconds"
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systemctl start --no-block sysroot.mount
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_loop=0
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while [ $_loop -lt 90 ] && ! is_mounted /sysroot; do
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sleep 1
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_loop=$((_loop + 1))
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done
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if ! is_mounted /sysroot; then
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derror "Failed to mount rootfs"
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return
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fi
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ddebug "NEWROOT=$NEWROOT"
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dump_fs $NEWROOT
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}
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kdump_emergency_shell()
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{
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ddebug "Switching to kdump emergency shell..."
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[ -f /etc/profile ] && . /etc/profile
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export PS1='kdump:${PWD}# '
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. /lib/dracut-lib.sh
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if [ -f /dracut-state.sh ]; then
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. /dracut-state.sh 2>/dev/null
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fi
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source_conf /etc/conf.d
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type plymouth >/dev/null 2>&1 && plymouth quit
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source_hook "emergency"
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while read _tty rest; do
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(
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echo
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echo
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echo 'Entering kdump emergency mode.'
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echo 'Type "journalctl" to view system logs.'
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echo 'Type "rdsosreport" to generate a sosreport, you can then'
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echo 'save it elsewhere and attach it to a bug report.'
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echo
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echo
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) > /dev/$_tty
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done < /proc/consoles
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sh -i -l
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/bin/rm -f -- /.console_lock
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}
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do_failure_action()
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{
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dinfo "Executing failure action $FAILURE_ACTION"
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eval $FAILURE_ACTION
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}
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do_final_action()
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{
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dinfo "Executing final action $FINAL_ACTION"
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eval $FINAL_ACTION
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}
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do_dump()
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{
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local _ret
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@ -3,35 +3,9 @@
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# Function and variables used in initramfs environment, POSIX compatible
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#
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. /lib/kdump-logger.sh
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DEFAULT_PATH="/var/crash/"
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KDUMP_PATH="/var/crash"
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KDUMP_LOG_FILE="/run/initramfs/kexec-dmesg.log"
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CORE_COLLECTOR=""
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DEFAULT_CORE_COLLECTOR="makedumpfile -l --message-level 7 -d 31"
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DMESG_COLLECTOR="/sbin/vmcore-dmesg"
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FAILURE_ACTION="systemctl 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="systemctl reboot -f"
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KDUMP_PRE=""
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KDUMP_POST=""
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NEWROOT="/sysroot"
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OPALCORE="/sys/firmware/opal/mpipl/core"
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KDUMP_CONFIG_FILE="/etc/kdump.conf"
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#initiate the kdump logger
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dlog_init
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if [ $? -ne 0 ]; then
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echo "failed to initiate the kdump logger."
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exit 1
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fi
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# Read kdump config in well formated style
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kdump_read_conf()
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{
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@ -156,266 +130,3 @@ is_fs_dump_target()
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{
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[[ $(kdump_get_conf_val "ext[234]\|xfs\|btrfs\|minix") ]]
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}
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get_kdump_confs()
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{
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local config_opt config_val
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while read config_opt config_val;
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do
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# remove inline comments after the end of a directive.
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case "$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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failure_action|default)
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case $config_val in
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shell)
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FAILURE_ACTION="kdump_emergency_shell"
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;;
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reboot)
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FAILURE_ACTION="systemctl reboot -f && exit"
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;;
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halt)
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FAILURE_ACTION="halt && exit"
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;;
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poweroff)
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FAILURE_ACTION="systemctl poweroff -f && exit"
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;;
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dump_to_rootfs)
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FAILURE_ACTION="dump_to_rootfs"
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;;
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esac
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;;
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final_action)
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case $config_val in
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reboot)
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FINAL_ACTION="systemctl reboot -f"
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;;
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halt)
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FINAL_ACTION="halt"
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;;
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poweroff)
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FINAL_ACTION="systemctl poweroff -f"
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;;
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esac
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;;
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esac
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done <<< "$(kdump_read_conf)"
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if [ -z "$CORE_COLLECTOR" ]; then
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CORE_COLLECTOR="$DEFAULT_CORE_COLLECTOR"
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if is_ssh_dump_target || is_raw_dump_target; then
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CORE_COLLECTOR="$CORE_COLLECTOR -F"
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fi
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fi
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}
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# store the kexec kernel log to a file.
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save_log()
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{
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dmesg -T > $KDUMP_LOG_FILE
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|
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if command -v journalctl > /dev/null; then
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journalctl -ab >> $KDUMP_LOG_FILE
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fi
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chmod 600 $KDUMP_LOG_FILE
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}
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# dump_fs <mount point>
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dump_fs()
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{
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local _exitcode
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local _mp=$1
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local _op=$(get_mount_info OPTIONS target $_mp -f)
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ddebug "dump_fs _mp=$_mp _opts=$_op"
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if ! is_mounted "$_mp"; then
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dinfo "dump path \"$_mp\" is not mounted, trying to mount..."
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mount --target $_mp
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if [ $? -ne 0 ]; then
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derror "failed to dump to \"$_mp\", it's not a mount point!"
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return 1
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fi
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fi
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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 $CORE_COLLECTOR | sed -e "s/-F//g"`
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local _dump_path=$(echo "$_mp/$KDUMP_PATH/$HOST_IP-$DATEDIR/" | tr -s /)
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dinfo "saving to $_dump_path"
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# Only remount to read-write mode if the dump target is mounted read-only.
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if [[ "$_op" = "ro"* ]]; then
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dinfo "Remounting the dump target in rw mode."
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mount -o remount,rw $_mp || return 1
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fi
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mkdir -p $_dump_path || return 1
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save_vmcore_dmesg_fs ${DMESG_COLLECTOR} "$_dump_path"
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save_opalcore_fs "$_dump_path"
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dinfo "saving vmcore"
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$CORE_COLLECTOR /proc/vmcore $_dump_path/vmcore-incomplete
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_exitcode=$?
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if [ $_exitcode -eq 0 ]; then
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mv $_dump_path/vmcore-incomplete $_dump_path/vmcore
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sync
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dinfo "saving vmcore complete"
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else
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derror "saving vmcore failed, _exitcode:$_exitcode"
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fi
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dinfo "saving the $KDUMP_LOG_FILE to $_dump_path/"
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save_log
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mv $KDUMP_LOG_FILE $_dump_path/
|
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if [ $_exitcode -ne 0 ]; then
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return 1
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fi
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||||
|
||||
# improper kernel cmdline can cause the failure of echo, we can ignore this kind of failure
|
||||
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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|
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dinfo "saving vmcore-dmesg.txt to ${_path}"
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$_dmesg_collector /proc/vmcore > ${_path}/vmcore-dmesg-incomplete.txt
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_exitcode=$?
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if [ $_exitcode -eq 0 ]; then
|
||||
mv ${_path}/vmcore-dmesg-incomplete.txt ${_path}/vmcore-dmesg.txt
|
||||
chmod 600 ${_path}/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 ${_path}/vmcore-dmesg-incomplete.txt ]; then
|
||||
chmod 600 ${_path}/vmcore-dmesg-incomplete.txt
|
||||
fi
|
||||
derror "saving vmcore-dmesg.txt failed"
|
||||
fi
|
||||
}
|
||||
|
||||
save_opalcore_fs() {
|
||||
local _path=$1
|
||||
|
||||
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 ${_path}/opalcore"
|
||||
cp $OPALCORE ${_path}/opalcore
|
||||
if [ $? -ne 0 ]; 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 $NEWROOT
|
||||
}
|
||||
|
||||
kdump_emergency_shell()
|
||||
{
|
||||
ddebug "Switching to kdump emergency shell..."
|
||||
|
||||
[ -f /etc/profile ] && . /etc/profile
|
||||
export PS1='kdump:${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 _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
|
||||
}
|
||||
|
||||
do_final_action()
|
||||
{
|
||||
dinfo "Executing final action $FINAL_ACTION"
|
||||
eval $FINAL_ACTION
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue