Merged update from upstream sources
This is an automated DistroBaker update from upstream sources. If you do not know what this is about or would like to opt out, contact the OSCI team. Source: https://src.fedoraproject.org/rpms/kexec-tools.git#33108ef524ff033295711f888ce2c67d457951aa
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DistroBaker
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6333173003
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624a6443ca
@ -1,7 +1,6 @@
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#!/bin/bash
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. /etc/sysconfig/kdump
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. /lib/kdump/kdump-lib.sh
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KDUMP_KERNEL=""
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KDUMP_INITRD=""
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@ -21,6 +20,8 @@ depends() {
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}
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prepare_kernel_initrd() {
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. /lib/kdump/kdump-lib.sh
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prepare_kdump_bootinfo
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# $kernel is a variable from dracut
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@ -12,6 +12,7 @@ EARLY_KEXEC_ARGS=""
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. /etc/sysconfig/kdump
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. /lib/dracut-lib.sh
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. /lib/kdump-lib.sh
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. /lib/kdump-logger.sh
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#initiate the kdump logger
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dlog_init
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@ -111,6 +111,7 @@ dump_ssh()
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local _dir="$KDUMP_PATH/$HOST_IP-$DATEDIR"
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local _host=$2
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local _vmcore="vmcore"
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local _ipv6_addr="" _username=""
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dinfo "saving to $_host:$_dir"
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@ -122,8 +123,17 @@ dump_ssh()
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dinfo "saving vmcore"
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if is_ipv6_address "$_host"; then
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_username=${_host%@*}
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_ipv6_addr="[${_host#*@}]"
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fi
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if [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "scp" ]; then
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if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then
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scp -q $_opt /proc/vmcore "$_username@$_ipv6_addr:$_dir/vmcore-incomplete"
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else
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scp -q $_opt /proc/vmcore "$_host:$_dir/vmcore-incomplete"
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fi
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_exitcode=$?
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else
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$CORE_COLLECTOR /proc/vmcore | ssh $_opt $_host "dd bs=512 of=$_dir/vmcore-incomplete"
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@ -143,8 +153,13 @@ dump_ssh()
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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 $_host:$_dir/"
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save_log
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if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then
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scp -q $_opt $KDUMP_LOG_FILE "$_username@$_ipv6_addr:$_dir/"
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else
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scp -q $_opt $KDUMP_LOG_FILE "$_host:$_dir/"
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fi
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_ret=$?
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if [ $_ret -ne 0 ]; then
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derror "saving log file failed, _exitcode:$_ret"
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@ -161,6 +176,7 @@ save_opalcore_ssh() {
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local _path=$1
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local _opts="$2"
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local _location=$3
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local _user_name="" _ipv6addr=""
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ddebug "_path=$_path _opts=$_opts _location=$_location"
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@ -173,8 +189,18 @@ save_opalcore_ssh() {
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fi
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fi
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if is_ipv6_address "$_host"; then
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_user_name=${_location%@*}
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_ipv6addr="[${_location#*@}]"
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fi
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dinfo "saving opalcore:$OPALCORE to $_location:$_path"
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if [ -n "$_user_name" ] && [ -n "$_ipv6addr" ]; then
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scp $_opts $OPALCORE $_user_name@$_ipv6addr:$_path/opalcore-incomplete
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else
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scp $_opts $OPALCORE $_location:$_path/opalcore-incomplete
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fi
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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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@ -1,12 +1,13 @@
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#!/bin/bash
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. $dracutfunctions
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. /lib/kdump/kdump-lib.sh
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kdump_module_init() {
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if ! [[ -d "${initdir}/tmp" ]]; then
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mkdir -p "${initdir}/tmp"
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fi
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. /lib/kdump/kdump-lib.sh
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}
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check() {
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[[ $debug ]] && set -x
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#kdumpctl sets this explicitly
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@ -20,6 +21,8 @@ check() {
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depends() {
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local _dep="base shutdown"
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kdump_module_init
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add_opt_module() {
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[[ " $omit_dracutmodules " != *\ $1\ * ]] && _dep="$_dep $1"
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}
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@ -32,6 +35,9 @@ depends() {
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modprobe -S $KDUMP_KERNELVER --dry-run $kmodule &>/dev/null || return 1
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fi
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done
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# check that the dracut squash module is available
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[ -d "$(dracut_module_path squash)" ] || return 1
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}
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if is_squash_available && ! is_fadump_capable; then
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@ -813,16 +819,15 @@ kdump_install_systemd_conf() {
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# Forward logs to console directly, and don't read Kmsg, this avoids
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# unneccessary memory consumption and make console output more useful.
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# Only do so for non fadump image.
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if ! is_fadump_capable; then
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mkdir -p ${initdir}/etc/systemd/journald.conf.d
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echo "[Journal]" > ${initdir}/etc/systemd/journald.conf.d/kdump.conf
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echo "Storage=volatile" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
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echo "ReadKMsg=no" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
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echo "ForwardToConsole=yes" >> ${initdir}/etc/systemd/journald.conf.d/kdump.conf
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fi
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}
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install() {
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kdump_module_init
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kdump_install_conf
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overwrite_sysctl_conf
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@ -4,6 +4,7 @@
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# http://www.freedesktop.org/wiki/Software/systemd/Generators/
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. /usr/lib/kdump/kdump-lib.sh
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. /usr/lib/kdump/kdump-logger.sh
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# If invokded with no arguments for testing purpose, output to /tmp to
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# avoid overriding the existing.
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@ -1,6 +1,7 @@
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# These variables and functions are useful in 2nd kernel
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. /lib/kdump-lib.sh
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. /lib/kdump-logger.sh
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KDUMP_PATH="/var/crash"
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KDUMP_LOG_FILE="/run/initramfs/kexec-dmesg.log"
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@ -117,27 +118,16 @@ dump_fs()
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{
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local _exitcode
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local _mp=$1
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local _dev=$(get_mount_info SOURCE target $_mp -f)
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local _op=$(get_mount_info OPTIONS target $_mp -f)
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ddebug "dump_fs _mp=$_mp"
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ddebug "_mp=$_mp _dev=$_dev _op=$_op"
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# If dump path have a corresponding device entry but not mounted, mount it.
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if [ -n "$_dev" ] && [ "$_dev" != "rootfs" ]; then
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if ! is_mounted "$_mp"; then
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dinfo "dump target $_dev is not mounted, trying to mount..."
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mkdir -p $_mp
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mount -o $_op $_dev $_mp
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dinfo "dump path \"$_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 "mounting failed (mount point: $_mp, option: $_op)"
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return 1
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fi
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fi
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else
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derror "failed to dump to \"$_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 $CORE_COLLECTOR | sed -e "s/-F//g"`
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@ -168,6 +158,7 @@ dump_fs()
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derror "saving vmcore failed, _exitcode:$_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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@ -226,8 +217,7 @@ dump_to_rootfs()
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{
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dinfo "Trying to bring up rootfs device"
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systemctl is-failed dracut-initqueue || systemctl start dracut-initqueue
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systemctl start dracut-initqueue
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dinfo "Waiting for rootfs mount, will timeout after 90 seconds"
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systemctl start sysroot.mount
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@ -8,12 +8,6 @@ FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"
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FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"
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FADUMP_ENABLED_SYS_NODE="/sys/kernel/fadump_enabled"
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if [ -f /lib/kdump/kdump-logger.sh ]; then
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. /lib/kdump/kdump-logger.sh
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elif [ -f /lib/kdump-logger.sh ]; then
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. /lib/kdump-logger.sh
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fi
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is_fadump_capable()
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{
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# Check if firmware-assisted dump is enabled
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@ -21,7 +21,7 @@
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# <mnt>/<path>/%HOST-%DATE/, supports DNS.
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#
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# ssh <user@server>
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# - Will scp /proc/vmcore to <user@server>:<path>/%HOST-%DATE/,
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# - Will save /proc/vmcore to <user@server>:<path>/%HOST-%DATE/,
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# supports DNS.
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# NOTE: make sure the user has write permissions on the server.
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#
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@ -166,7 +166,9 @@
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#ext4 LABEL=/boot
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#ext4 UUID=03138356-5e61-4ab3-b58e-27507ac41937
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#nfs my.server.com:/export/tmp
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#nfs [2001:db8::1:2:3:4]:/export/tmp
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#ssh user@my.server.com
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#ssh user@2001:db8::1:2:3:4
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#sshkey /root/.ssh/kdump_id_rsa
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path /var/crash
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core_collector makedumpfile -l --message-level 7 -d 31
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@ -98,6 +98,11 @@ vmcore.flat, you will need to use "makedumpfile -R" to rearrange the
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dump data from standard input to a normal dumpfile (readable with analysis
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tools).
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ie. "makedumpfile -R vmcore < vmcore.flat"
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.PP
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Note 3: If specified core_collector simply copy the vmcore file to the
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dump target (eg: cp, scp), the vmcore could be significantly large.
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Please make sure the dump target has enough space, at leaset larger
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than the system's RAM.
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.RE
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1
kdumpctl
1
kdumpctl
@ -34,6 +34,7 @@ fi
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[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
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. $dracutbasedir/dracut-functions.sh
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. /lib/kdump/kdump-lib.sh
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. /lib/kdump/kdump-logger.sh
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#initiate the kdump logger
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dlog_init
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@ -524,17 +524,91 @@ to send over the necessary ssh key file. Restart the kdump service via
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Advanced Setups
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===============
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Kdump boot directory
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--------------------
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About /etc/sysconfig/kdump
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------------------------------
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Currently, there are a few options in /etc/sysconfig/kdump, which are
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usually used to control the behavior of kdump kernel. Basically, all of
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these options have default values, usually we do not need to change them,
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but sometimes, we may modify them in order to better control the behavior
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of kdump kernel such as debug, etc.
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-KDUMP_BOOTDIR
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Usually kdump kernel is the same as 1st kernel. So kdump will try to find
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kdump kernel under /boot according to /proc/cmdline. E.g we execute below
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command and get an output:
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cat /proc/cmdline
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BOOT_IMAGE=/xxx/vmlinuz-3.yyy.zzz root=xxxx .....
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Then kdump kernel will be /boot/xxx/vmlinuz-3.yyy.zzz.
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However a variable KDUMP_BOOTDIR in /etc/sysconfig/kdump is provided to
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user if kdump kernel is put in a different directory.
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Then kdump kernel will be /boot/xxx/vmlinuz-3.yyy.zzz. However, this option
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is provided to user if kdump kernel is put in a different directory.
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-KDUMP_IMG
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This represents the image type used for kdump. The default value is "vmlinuz".
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-KDUMP_IMG_EXT
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This represents the images extension. Relocatable kernels don't have one.
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Currently, it is a null string by default.
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-KEXEC_ARGS
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Any additional kexec arguments required. For example:
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KEXEC_ARGS="--elf32-core-headers".
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In most situations, this should be left empty. But, sometimes we hope to get
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additional kexec loading debugging information, we can add the '-d' option
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for the debugging.
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-KDUMP_KERNELVER
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This is a kernel version string for the kdump kernel. If the version is not
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specified, the init script will try to find a kdump kernel with the same
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version number as the running kernel.
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-KDUMP_COMMANDLINE
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The value of 'KDUMP_COMMANDLINE' will be passed to kdump kernel as command
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line parameters, this will likely match the contents of the grub kernel line.
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In general, if a command line is not specified, which means that it is a null
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string such as KDUMP_COMMANDLINE="", the default will be taken automatically
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from the '/proc/cmdline'.
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-KDUMP_COMMANDLINE_REMOVE
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This option allows us to remove arguments from the current kdump command line.
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If we don't specify any parameters for the KDUMP_COMMANDLINE, it will inherit
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all values from the '/proc/cmdline', which is not expected. As you know, some
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default kernel parameters could affect kdump, furthermore, that could cause
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the failure of kdump kernel boot.
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In addition, the option is also helpful to debug the kdump kernel, we can use
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this option to change kdump kernel command line.
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For more kernel parameters, please refer to kernel document.
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-KDUMP_COMMANDLINE_APPEND
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This option allows us to append arguments to the current kdump command line
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after processed by the KDUMP_COMMANDLINE_REMOVE. For kdump kernel, some
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specific modules require to be disabled like the mce, cgroup, numa, hest_disable,
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etc. Those modules may waste memory or kdump kernel doesn't need them,
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furthermore, there may affect kdump kernel boot.
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Just like above option, it can be used to disable or enable some kernel
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modules so that we can exclude any errors for kdump kernel, this is very
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meaningful for debugging.
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-KDUMP_STDLOGLVL | KDUMP_SYSLOGLVL | KDUMP_KMSGLOGLVL
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These variables are used to control the kdump log level in the first kernel.
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In the second kernel, kdump will use the rd.kdumploglvl option to set the log
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level in the above KDUMP_COMMANDLINE_APPEND.
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Logging levels: no logging(0), error(1), warn(2), info(3), debug(4)
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Kdump Post-Capture Executable
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-----------------------------
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@ -5,7 +5,7 @@
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Name: kexec-tools
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Version: 2.0.21
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Release: 2%{?dist}
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Release: 4%{?dist}
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License: GPLv2
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Summary: The kexec/kdump userspace component
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@ -61,7 +61,7 @@ Requires(postun): systemd-units
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Requires(pre): coreutils sed zlib
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Requires: dracut >= 050
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Requires: dracut-network >= 050
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Requires: dracut-squash >= 050
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Recommends: dracut-squash >= 050
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Requires: ethtool
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BuildRequires: make
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BuildRequires: zlib-devel elfutils-devel glib2-devel bzip2-devel ncurses-devel bison flex lzo-devel snappy-devel
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@ -361,6 +361,23 @@ done
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%endif
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%changelog
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* Fri Jan 22 2021 Kairui Song <kasong@redhat.com> - 2.0.21-4
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- dracut-module-setup.sh: enable ForwardToConsole=yes in fadump mode
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- kdump.conf: add ipv6 example for nfs and ssh dump
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- fix kdump failure of saving vmcore with the scp + ipv6 method
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* Wed Jan 20 2021 Kairui Song <kasong@redhat.com> - 2.0.21-3
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- module-setup.sh: don't polute the namespace unnecessarily
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- module-setup.sh: don't source $dracutfunctions
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- logger: source the logger file individually
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- Fix dump_fs mount point detection and fallback mount
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- Revert "Don's try to restart dracut-initqueue if it's already failed"
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- Revert "Append both nofail and x-systemd.before to kdump mount target"
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- Doc: Improve the kdump sysconfig document
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- kdump.conf: Update doc about core_collector for ssh target
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- Merge #4 `Make dracut-squash a weak dep`
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- Fix a date error in the change log
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* Fri Jan 08 2021 Kairui Song <kasong@redhat.com> - 2.0.21-2
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- makedumpfile: make use of 'uts_namespace.name' offset in VMCOREINFO
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- kdumpctl: fix a variable expansion in check_fence_kdump_config()
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4
mkdumprd
4
mkdumprd
@ -13,6 +13,7 @@ fi
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[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
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. $dracutbasedir/dracut-functions.sh
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. /lib/kdump/kdump-lib.sh
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. /lib/kdump/kdump-logger.sh
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export IN_KDUMP=1
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#initiate the kdump logger
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@ -86,9 +87,6 @@ to_mount() {
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# drop nofail or nobootwait
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_options=$(echo $_options | sed 's/\(^\|,\)nofail\($\|,\)/\1/g')
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_options=$(echo $_options | sed 's/\(^\|,\)nobootwait\($\|,\)/\1/g')
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# use both nofail and x-systemd.before to ensure systemd will try best to
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# mount it before kdump starts, this is an attempt to improve robustness
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_options="$_options,nofail,x-systemd.before=initrd-fs.target"
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echo "$_pdev $_new_mntpoint $_fstype $_options"
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}
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