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enable the logger for kdump 

Since the logger was introduced into kdump, let's enable it for kdump
so that we can output kdump messages according the log level and save
these messages for debugging.

Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
Acked-by: Kairui Song <kasong@redhat.com>
This commit is contained in:
Lianbo Jiang 2020-10-27 17:04:22 +08:00 committed by Kairui Song
parent 41b3da3996
commit 3b743ae6ae
6 changed files with 173 additions and 122 deletions
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3
dracut-early-kdump-module-setup.sh
View File

@ -48,7 +48,10 @@ install() {
inst_simple "/etc/sysconfig/kdump" inst_simple "/etc/sysconfig/kdump"
inst_binary "/usr/sbin/kexec" inst_binary "/usr/sbin/kexec"
inst_binary "/usr/bin/gawk" "/usr/bin/awk" inst_binary "/usr/bin/gawk" "/usr/bin/awk"
inst_binary "/usr/bin/logger" "/usr/bin/logger"
inst_binary "/usr/bin/printf" "/usr/bin/printf"
inst_script "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh" inst_script "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh"
inst_script "/lib/kdump/kdump-logger.sh" "/lib/kdump-logger.sh"
inst_hook cmdline 00 "$moddir/early-kdump.sh" inst_hook cmdline 00 "$moddir/early-kdump.sh"
inst_binary "$KDUMP_KERNEL" inst_binary "$KDUMP_KERNEL"
inst_binary "$KDUMP_INITRD" inst_binary "$KDUMP_INITRD"

23
dracut-early-kdump.sh
View File

@ -13,6 +13,13 @@ EARLY_KEXEC_ARGS=""
. /lib/dracut-lib.sh . /lib/dracut-lib.sh
. /lib/kdump-lib.sh . /lib/kdump-lib.sh
#initiate the kdump logger
dlog_init
if [ $? -ne 0 ]; then
echo "failed to initiate the kdump logger."
exit 1
fi
prepare_parameters() prepare_parameters()
{ {
EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}") EARLY_KDUMP_CMDLINE=$(prepare_cmdline "${KDUMP_COMMANDLINE}" "${KDUMP_COMMANDLINE_REMOVE}" "${KDUMP_COMMANDLINE_APPEND}")
@ -28,7 +35,7 @@ early_kdump_load()
fi fi
if is_fadump_capable; then if is_fadump_capable; then
echo "WARNING: early kdump doesn't support fadump." dwarn "WARNING: early kdump doesn't support fadump."
return 1 return 1
fi fi
@ -42,18 +49,22 @@ early_kdump_load()
EARLY_KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}") EARLY_KEXEC_ARGS=$(prepare_kexec_args "${KEXEC_ARGS}")
if is_secure_boot_enforced; then if is_secure_boot_enforced; then
echo "Secure Boot is enabled. Using kexec file based syscall." dinfo "Secure Boot is enabled. Using kexec file based syscall."
EARLY_KEXEC_ARGS="$EARLY_KEXEC_ARGS -s" EARLY_KEXEC_ARGS="$EARLY_KEXEC_ARGS -s"
fi fi
ddebug "earlykdump: $KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
--command-line=$EARLY_KDUMP_CMDLINE --initrd=$EARLY_KDUMP_INITRD \
$EARLY_KDUMP_KERNEL"
$KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \ $KEXEC ${EARLY_KEXEC_ARGS} $standard_kexec_args \
--command-line="$EARLY_KDUMP_CMDLINE" \ --command-line="$EARLY_KDUMP_CMDLINE" \
--initrd=$EARLY_KDUMP_INITRD $EARLY_KDUMP_KERNEL --initrd=$EARLY_KDUMP_INITRD $EARLY_KDUMP_KERNEL
if [ $? == 0 ]; then if [ $? == 0 ]; then
echo "kexec: loaded early-kdump kernel" dinfo "kexec: loaded early-kdump kernel"
return 0 return 0
else else
echo "kexec: failed to load early-kdump kernel" derror "kexec: failed to load early-kdump kernel"
return 1 return 1
fi fi
} }
@ -61,10 +72,10 @@ early_kdump_load()
set_early_kdump() set_early_kdump()
{ {
if getargbool 0 rd.earlykdump; then if getargbool 0 rd.earlykdump; then
echo "early-kdump is enabled." dinfo "early-kdump is enabled."
early_kdump_load early_kdump_load
else else
echo "early-kdump is disabled." dinfo "early-kdump is disabled."
fi fi
return 0 return 0

23
kdump-lib.sh
View File

@ -8,6 +8,12 @@ FENCE_KDUMP_CONFIG_FILE="/etc/sysconfig/fence_kdump"
FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send" FENCE_KDUMP_SEND="/usr/libexec/fence_kdump_send"
FADUMP_ENABLED_SYS_NODE="/sys/kernel/fadump_enabled" FADUMP_ENABLED_SYS_NODE="/sys/kernel/fadump_enabled"
if [ -f /lib/kdump/kdump-logger.sh ]; then
. /lib/kdump/kdump-logger.sh
elif [ -f /lib/kdump-logger.sh ]; then
. /lib/kdump-logger.sh
fi
is_fadump_capable() is_fadump_capable()
{ {
# Check if firmware-assisted dump is enabled # Check if firmware-assisted dump is enabled
@ -20,14 +26,10 @@ is_fadump_capable()
} }
perror_exit() { perror_exit() {
echo $@ >&2 derror "$@"
exit 1 exit 1
} }
perror() {
echo $@ >&2
}
is_fs_type_nfs() is_fs_type_nfs()
{ {
[ "$1" = "nfs" ] || [ "$1" = "nfs4" ] [ "$1" = "nfs" ] || [ "$1" = "nfs4" ]
@ -503,7 +505,7 @@ check_crash_mem_reserved()
mem_reserved=$(cat /sys/kernel/kexec_crash_size) mem_reserved=$(cat /sys/kernel/kexec_crash_size)
if [ $mem_reserved -eq 0 ]; then if [ $mem_reserved -eq 0 ]; then
echo "No memory reserved for crash kernel" derror "No memory reserved for crash kernel"
return 1 return 1
fi fi
@ -513,7 +515,7 @@ check_crash_mem_reserved()
check_kdump_feasibility() check_kdump_feasibility()
{ {
if [ ! -e /sys/kernel/kexec_crash_loaded ]; then if [ ! -e /sys/kernel/kexec_crash_loaded ]; then
echo "Kdump is not supported on this kernel" derror "Kdump is not supported on this kernel"
return 1 return 1
fi fi
check_crash_mem_reserved check_crash_mem_reserved
@ -523,7 +525,7 @@ check_kdump_feasibility()
check_current_kdump_status() check_current_kdump_status()
{ {
if [ ! -f /sys/kernel/kexec_crash_loaded ];then if [ ! -f /sys/kernel/kexec_crash_loaded ];then
echo "Perhaps CONFIG_CRASH_DUMP is not enabled in kernel" derror "Perhaps CONFIG_CRASH_DUMP is not enabled in kernel"
return 1 return 1
fi fi
@ -651,8 +653,7 @@ prepare_kexec_args()
found_elf_args=`echo $kexec_args | grep elf32-core-headers` found_elf_args=`echo $kexec_args | grep elf32-core-headers`
if [ -n "$found_elf_args" ] if [ -n "$found_elf_args" ]
then then
echo -n "Warning: elf32-core-headers overrides correct elf64 setting" dwarn "Warning: elf32-core-headers overrides correct elf64 setting"
echo
else else
kexec_args="$kexec_args --elf64-core-headers" kexec_args="$kexec_args --elf64-core-headers"
fi fi
@ -703,7 +704,7 @@ prepare_kdump_bootinfo()
done done
if ! [ -e "$KDUMP_KERNEL" ]; then if ! [ -e "$KDUMP_KERNEL" ]; then
echo "Failed to detect kdump kernel location" derror "Failed to detect kdump kernel location"
return 1 return 1
fi fi

221
kdumpctl
View File

@ -21,10 +21,6 @@ FADUMP_REGISTER_SYS_NODE="/sys/kernel/fadump_registered"
DEFAULT_DUMP_MODE="kdump" DEFAULT_DUMP_MODE="kdump"
image_time=0 image_time=0
[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
. $dracutbasedir/dracut-functions.sh
. /lib/kdump/kdump-lib.sh
standard_kexec_args="-p" standard_kexec_args="-p"
# Some default values in case /etc/sysconfig/kdump doesn't include # Some default values in case /etc/sysconfig/kdump doesn't include
@ -34,13 +30,24 @@ if [ -f /etc/sysconfig/kdump ]; then
. /etc/sysconfig/kdump . /etc/sysconfig/kdump
fi fi
[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
. $dracutbasedir/dracut-functions.sh
. /lib/kdump/kdump-lib.sh
#initiate the kdump logger
dlog_init
if [ $? -ne 0 ]; then
echo "failed to initiate the kdump logger."
exit 1
fi
single_instance_lock() single_instance_lock()
{ {
local rc timeout=5 local rc timeout=5
exec 9>/var/lock/kdump exec 9>/var/lock/kdump
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Create file lock failed" derror "Create file lock failed"
exit 1 exit 1
fi fi
@ -48,7 +55,7 @@ single_instance_lock()
rc=$? rc=$?
while [ $rc -ne 0 ]; do while [ $rc -ne 0 ]; do
echo "Another app is currently holding the kdump lock; waiting for it to exit..." dinfo "Another app is currently holding the kdump lock; waiting for it to exit..."
flock -w $timeout 9 flock -w $timeout 9
rc=$? rc=$?
done done
@ -59,9 +66,10 @@ determine_dump_mode()
# Check if firmware-assisted dump is enabled # Check if firmware-assisted dump is enabled
# if yes, set the dump mode as fadump # if yes, set the dump mode as fadump
if is_fadump_capable; then if is_fadump_capable; then
echo "Dump mode is fadump" dinfo "Dump mode is fadump"
DEFAULT_DUMP_MODE="fadump" DEFAULT_DUMP_MODE="fadump"
fi fi
ddebug "DEFAULT_DUMP_MODE=$DEFAULT_DUMP_MODE"
} }
save_core() save_core()
@ -69,22 +77,25 @@ save_core()
coredir="/var/crash/`date +"%Y-%m-%d-%H:%M"`" coredir="/var/crash/`date +"%Y-%m-%d-%H:%M"`"
mkdir -p $coredir mkdir -p $coredir
ddebug "cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete"
cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete cp --sparse=always /proc/vmcore $coredir/vmcore-incomplete
if [ $? == 0 ]; then if [ $? == 0 ]; then
mv $coredir/vmcore-incomplete $coredir/vmcore mv $coredir/vmcore-incomplete $coredir/vmcore
echo "saved a vmcore to $coredir" dinfo "saved a vmcore to $coredir"
else else
echo "failed to save a vmcore to $coredir" >&2 derror "failed to save a vmcore to $coredir"
fi fi
# pass the dmesg to Abrt tool if exists, in order # pass the dmesg to Abrt tool if exists, in order
# to collect the kernel oops message. # to collect the kernel oops message.
# https://fedorahosted.org/abrt/ # https://fedorahosted.org/abrt/
if [ -x /usr/bin/dumpoops ]; then if [ -x /usr/bin/dumpoops ]; then
ddebug "makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg"
makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg >/dev/null 2>&1 makedumpfile --dump-dmesg $coredir/vmcore $coredir/dmesg >/dev/null 2>&1
ddebug "dumpoops -d $coredir/dmesg"
dumpoops -d $coredir/dmesg >/dev/null 2>&1 dumpoops -d $coredir/dmesg >/dev/null 2>&1
if [ $? == 0 ]; then if [ $? == 0 ]; then
echo "kernel oops has been collected by abrt tool" dinfo "kernel oops has been collected by abrt tool"
fi fi
fi fi
} }
@ -96,16 +107,18 @@ rebuild_fadump_initrd()
# this file tells the initrd is fadump enabled # this file tells the initrd is fadump enabled
touch /tmp/fadump.initramfs touch /tmp/fadump.initramfs
target_initrd_tmp="$TARGET_INITRD.tmp" target_initrd_tmp="$TARGET_INITRD.tmp"
ddebug "rebuild fadump initrd: $target_initrd_tmp $DEFAULT_INITRD_BAK $KDUMP_KERNELVER"
$MKDUMPRD $target_initrd_tmp --rebuild $DEFAULT_INITRD_BAK --kver $KDUMP_KERNELVER \ $MKDUMPRD $target_initrd_tmp --rebuild $DEFAULT_INITRD_BAK --kver $KDUMP_KERNELVER \
-i /tmp/fadump.initramfs /etc/fadump.initramfs -i /tmp/fadump.initramfs /etc/fadump.initramfs
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "mkdumprd: failed to rebuild initrd with fadump support" >&2 derror "mkdumprd: failed to rebuild initrd with fadump support"
rm -f /tmp/fadump.initramfs rm -f /tmp/fadump.initramfs
return 1 return 1
fi fi
rm -f /tmp/fadump.initramfs rm -f /tmp/fadump.initramfs
# updating fadump initrd # updating fadump initrd
ddebug "updating fadump initrd: $target_initrd_tmp $TARGET_INITRD"
mv $target_initrd_tmp $TARGET_INITRD mv $target_initrd_tmp $TARGET_INITRD
sync sync
@ -120,14 +133,15 @@ check_earlykdump_is_enabled()
rebuild_kdump_initrd() rebuild_kdump_initrd()
{ {
ddebug "rebuild kdump initrd: $MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER"
$MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER $MKDUMPRD $TARGET_INITRD $KDUMP_KERNELVER
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "mkdumprd: failed to make kdump initrd" >&2 derror "mkdumprd: failed to make kdump initrd"
return 1 return 1
fi fi
if check_earlykdump_is_enabled; then if check_earlykdump_is_enabled; then
echo "Tips: If early kdump is enabled, also require rebuilding the system initramfs to make the changes take effect for early kdump." dwarn "Tips: If early kdump is enabled, also require rebuilding the system initramfs to make the changes take effect for early kdump."
fi fi
return 0 return 0
@ -136,7 +150,7 @@ rebuild_kdump_initrd()
rebuild_initrd() rebuild_initrd()
{ {
if [[ ! -w "$KDUMP_BOOTDIR" ]];then if [[ ! -w "$KDUMP_BOOTDIR" ]];then
echo "$KDUMP_BOOTDIR does not have write permission. Can not rebuild $TARGET_INITRD" derror "$KDUMP_BOOTDIR does not have write permission. Can not rebuild $TARGET_INITRD"
return 1 return 1
fi fi
@ -154,7 +168,7 @@ check_exist()
{ {
for file in $1; do for file in $1; do
if [ ! -e "$file" ]; then if [ ! -e "$file" ]; then
echo -n "Error: $file not found."; echo derror "Error: $file not found."
return 1 return 1
fi fi
done done
@ -165,7 +179,7 @@ check_executable()
{ {
for file in $1; do for file in $1; do
if [ ! -x "$file" ]; then if [ ! -x "$file" ]; then
echo -n "Error: $file is not executable."; echo derror "Error: $file is not executable."
return 1 return 1
fi fi
done done
@ -173,17 +187,19 @@ check_executable()
backup_default_initrd() backup_default_initrd()
{ {
ddebug "backup default initrd: $DEFAULT_INITRD"
if [ ! -f "$DEFAULT_INITRD" ]; then if [ ! -f "$DEFAULT_INITRD" ]; then
return return
fi fi
if [ ! -e $DEFAULT_INITRD_BAK ]; then if [ ! -e $DEFAULT_INITRD_BAK ]; then
echo "Backing up $DEFAULT_INITRD before rebuild." dinfo "Backing up $DEFAULT_INITRD before rebuild."
# save checksum to verify before restoring # save checksum to verify before restoring
sha1sum $DEFAULT_INITRD > $INITRD_CHECKSUM_LOCATION sha1sum $DEFAULT_INITRD > $INITRD_CHECKSUM_LOCATION
cp $DEFAULT_INITRD $DEFAULT_INITRD_BAK cp $DEFAULT_INITRD $DEFAULT_INITRD_BAK
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "WARNING: failed to backup $DEFAULT_INITRD." dwarn "WARNING: failed to backup $DEFAULT_INITRD."
rm -f $DEFAULT_INITRD_BAK rm -f $DEFAULT_INITRD_BAK
fi fi
fi fi
@ -191,6 +207,8 @@ backup_default_initrd()
restore_default_initrd() restore_default_initrd()
{ {
ddebug "restore default initrd: $DEFAULT_INITRD"
if [ ! -f "$DEFAULT_INITRD" ]; then if [ ! -f "$DEFAULT_INITRD" ]; then
return return
fi fi
@ -202,13 +220,12 @@ restore_default_initrd()
backup_checksum=`sha1sum $DEFAULT_INITRD_BAK | awk '{ print $1 }'` backup_checksum=`sha1sum $DEFAULT_INITRD_BAK | awk '{ print $1 }'`
default_checksum=`cat $INITRD_CHECKSUM_LOCATION | awk '{ print $1 }'` default_checksum=`cat $INITRD_CHECKSUM_LOCATION | awk '{ print $1 }'`
if [ "$default_checksum" != "$backup_checksum" ]; then if [ "$default_checksum" != "$backup_checksum" ]; then
echo "WARNING: checksum mismatch! Can't restore original initrd.." dwarn "WARNING: checksum mismatch! Can't restore original initrd.."
else else
rm -f $INITRD_CHECKSUM_LOCATION rm -f $INITRD_CHECKSUM_LOCATION
mv $DEFAULT_INITRD_BAK $DEFAULT_INITRD mv $DEFAULT_INITRD_BAK $DEFAULT_INITRD
if [[ $? -eq 0 ]]; then if [[ $? -eq 0 ]]; then
echo -n "Restoring original initrd as fadump mode " derror "Restoring original initrd as fadump mode is disabled."
echo "is disabled."
sync sync
fi fi
fi fi
@ -220,7 +237,7 @@ check_config()
local -A _opt_rec local -A _opt_rec
while read config_opt config_val; do while read config_opt config_val; do
if [ -z "$config_val" ]; then if [ -z "$config_val" ]; then
echo "Invalid kdump config value for option $config_opt" derror "Invalid kdump config value for option $config_opt"
return 1 return 1
fi fi
@ -228,7 +245,7 @@ check_config()
dracut_args) dracut_args)
if [[ $config_val == *--mount* ]]; then if [[ $config_val == *--mount* ]]; then
if [ $(echo $config_val | grep -o "\-\-mount" | wc -l) -ne 1 ]; then if [ $(echo $config_val | grep -o "\-\-mount" | wc -l) -ne 1 ]; then
echo "Multiple mount targets specified in one \"dracut_args\"." derror "Multiple mount targets specified in one \"dracut_args\"."
return 1 return 1
fi fi
config_opt=_target config_opt=_target
@ -236,7 +253,7 @@ check_config()
;; ;;
raw) raw)
if [ -d "/proc/device-tree/ibm,opal/dump" ]; then if [ -d "/proc/device-tree/ibm,opal/dump" ]; then
echo "WARNING: Won't capture opalcore when 'raw' dump target is used." derror "WARNING: Won't capture opalcore when 'raw' dump target is used."
return 1 return 1
fi fi
config_opt=_target config_opt=_target
@ -247,20 +264,20 @@ check_config()
sshkey|path|core_collector|kdump_post|kdump_pre|extra_bins|extra_modules|failure_action|default|final_action|force_rebuild|force_no_rebuild|fence_kdump_args|fence_kdump_nodes) sshkey|path|core_collector|kdump_post|kdump_pre|extra_bins|extra_modules|failure_action|default|final_action|force_rebuild|force_no_rebuild|fence_kdump_args|fence_kdump_nodes)
;; ;;
net|options|link_delay|disk_timeout|debug_mem_level|blacklist) net|options|link_delay|disk_timeout|debug_mem_level|blacklist)
echo "Deprecated kdump config option: $config_opt. Refer to kdump.conf manpage for alternatives." derror "Deprecated kdump config option: $config_opt. Refer to kdump.conf manpage for alternatives."
return 1 return 1
;; ;;
*) *)
echo "Invalid kdump config option $config_opt" derror "Invalid kdump config option $config_opt"
return 1 return 1
;; ;;
esac esac
if [ -n "${_opt_rec[$config_opt]}" ]; then if [ -n "${_opt_rec[$config_opt]}" ]; then
if [ $config_opt == _target ]; then if [ $config_opt == _target ]; then
echo "More than one dump targets specified" derror "More than one dump targets specified"
else else
echo "Duplicated kdump config value of option $config_opt" derror "Duplicated kdump config value of option $config_opt"
fi fi
return 1 return 1
fi fi
@ -305,6 +322,7 @@ setup_initrd()
{ {
prepare_kdump_bootinfo prepare_kdump_bootinfo
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
derror "failed to prepare for kdump bootinfo."
return 1 return 1
fi fi
@ -375,7 +393,7 @@ check_files_modified()
else else
# If it's not a module nor builtin, give an error # If it's not a module nor builtin, give an error
if ! ( modprobe --set-version "$KDUMP_KERNELVER" --dry-run "$_module" &>/dev/null ); then if ! ( modprobe --set-version "$KDUMP_KERNELVER" --dry-run "$_module" &>/dev/null ); then
echo "Module $_module not found" dwarn "Module $_module not found"
fi fi
fi fi
done done
@ -400,13 +418,12 @@ check_files_modified()
fi fi
fi fi
else else
echo "$file doesn't exist" dwarn "$file doesn't exist"
fi fi
done done
if [ -n "$modified_files" ]; then if [ -n "$modified_files" ]; then
echo "Detected change(s) in the following file(s):" dinfo "Detected change(s) in the following file(s): $modified_files"
echo -n " "; echo "$modified_files" | sed 's/\s/\n /g'
return 1 return 1
fi fi
@ -444,13 +461,16 @@ check_dump_fs_modified()
_target=$(to_dev_name $_target) _target=$(to_dev_name $_target)
_new_fstype=$(get_fs_type_from_target $_target) _new_fstype=$(get_fs_type_from_target $_target)
if [[ -z "$_target" || -z "$_new_fstype" ]];then if [[ -z "$_target" || -z "$_new_fstype" ]];then
echo "Dump path $_path does not exist" derror "Dump path $_path does not exist"
return 2 return 2
fi fi
fi fi
ddebug "_target=$_target _path=$_path _new_fstype=$_new_fstype"
_record_block_drivers() { _record_block_drivers() {
local _drivers local _drivers
if [[ -b /dev/block/$1 ]]; then if [[ -b /dev/block/$1 ]]; then
_drivers=$(udevadm info -a "/dev/block/$1" | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p') _drivers=$(udevadm info -a "/dev/block/$1" | sed -n 's/\s*DRIVERS=="\(\S\+\)"/\1/p')
fi fi
@ -462,6 +482,7 @@ check_dump_fs_modified()
_target_drivers="$_target_drivers $_driver" _target_drivers="$_target_drivers $_driver"
fi fi
done done
ddebug "MAJ:MIN=$1 _drivers=$_drivers _target_drivers=$_targer_drivers"
return 1 return 1
} }
@ -474,7 +495,7 @@ check_dump_fs_modified()
continue continue
fi fi
if ! [[ " $_old_drivers " == *" $_module_name "* ]]; then if ! [[ " $_old_drivers " == *" $_module_name "* ]]; then
echo "Detected change in block device driver, new loaded module: $_module_name" dinfo "Detected change in block device driver, new loaded module: $_module_name"
return 1 return 1
fi fi
done done
@ -484,7 +505,7 @@ check_dump_fs_modified()
else else
_new_dev=$(kdump_get_persistent_dev $_target) _new_dev=$(kdump_get_persistent_dev $_target)
if [ -z "$_new_dev" ]; then if [ -z "$_new_dev" ]; then
echo "Get persistent device name failed" derror "Get persistent device name failed"
return 2 return 2
fi fi
fi fi
@ -492,7 +513,7 @@ check_dump_fs_modified()
_new_mntpoint="$(get_kdump_mntpoint_from_target $_target)" _new_mntpoint="$(get_kdump_mntpoint_from_target $_target)"
_dracut_args=$(lsinitrd $TARGET_INITRD -f usr/lib/dracut/build-parameter.txt) _dracut_args=$(lsinitrd $TARGET_INITRD -f usr/lib/dracut/build-parameter.txt)
if [[ -z "$_dracut_args" ]];then if [[ -z "$_dracut_args" ]];then
echo "Warning: No dracut arguments found in initrd" dwarn "Warning: No dracut arguments found in initrd"
return 0 return 0
fi fi
@ -510,7 +531,7 @@ check_dump_fs_modified()
[[ "$_target" = "$(get_root_fs_device)" ]] && return 0 [[ "$_target" = "$(get_root_fs_device)" ]] && return 0
fi fi
echo "Detected change in File System" dinfo "Detected change in File System"
return 1 return 1
} }
@ -593,7 +614,7 @@ check_system_modified()
check_wdt_modified check_wdt_modified
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Detected change in watchdog state" dinfo "Detected change in watchdog state"
return 1 return 1
fi fi
@ -617,7 +638,7 @@ check_rebuild()
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then
force_no_rebuild=`echo $_force_no_rebuild | cut -d' ' -f2` force_no_rebuild=`echo $_force_no_rebuild | cut -d' ' -f2`
if [ "$force_no_rebuild" != "0" ] && [ "$force_no_rebuild" != "1" ];then if [ "$force_no_rebuild" != "0" ] && [ "$force_no_rebuild" != "1" ];then
echo "Error: force_no_rebuild value is invalid" derror "Error: force_no_rebuild value is invalid"
return 1 return 1
fi fi
fi fi
@ -626,13 +647,13 @@ check_rebuild()
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then
force_rebuild=`echo $_force_rebuild | cut -d' ' -f2` force_rebuild=`echo $_force_rebuild | cut -d' ' -f2`
if [ "$force_rebuild" != "0" ] && [ "$force_rebuild" != "1" ];then if [ "$force_rebuild" != "0" ] && [ "$force_rebuild" != "1" ];then
echo "Error: force_rebuild value is invalid" derror "Error: force_rebuild value is invalid"
return 1 return 1
fi fi
fi fi
if [[ "$force_no_rebuild" == "1" && "$force_rebuild" == "1" ]]; then if [[ "$force_no_rebuild" == "1" && "$force_rebuild" == "1" ]]; then
echo "Error: force_rebuild and force_no_rebuild are enabled simultaneously in kdump.conf" derror "Error: force_rebuild and force_no_rebuild are enabled simultaneously in kdump.conf"
return 1 return 1
fi fi
@ -662,18 +683,18 @@ check_rebuild()
fi fi
if [ $image_time -eq 0 ]; then if [ $image_time -eq 0 ]; then
echo -n "No kdump initial ramdisk found."; echo dinfo "No kdump initial ramdisk found."
elif [ "$capture_capable_initrd" == "0" ]; then elif [ "$capture_capable_initrd" == "0" ]; then
echo -n "Rebuild $TARGET_INITRD with dump capture support"; echo dinfo "Rebuild $TARGET_INITRD with dump capture support"
elif [ "$force_rebuild" != "0" ]; then elif [ "$force_rebuild" != "0" ]; then
echo -n "Force rebuild $TARGET_INITRD"; echo dinfo "Force rebuild $TARGET_INITRD"
elif [ "$system_modified" != "0" ]; then elif [ "$system_modified" != "0" ]; then
: :
else else
return 0 return 0
fi fi
echo "Rebuilding $TARGET_INITRD" dinfo "Rebuilding $TARGET_INITRD"
rebuild_initrd rebuild_initrd
return $? return $?
} }
@ -690,18 +711,20 @@ load_kdump()
# Old syscall will always fail as it does not have capability to # Old syscall will always fail as it does not have capability to
# to kernel signature verification. # to kernel signature verification.
if is_secure_boot_enforced; then if is_secure_boot_enforced; then
echo "Secure Boot is enabled. Using kexec file based syscall." dinfo "Secure Boot is enabled. Using kexec file based syscall."
KEXEC_ARGS="$KEXEC_ARGS -s" KEXEC_ARGS="$KEXEC_ARGS -s"
fi fi
ddebug "$KEXEC $KEXEC_ARGS $standard_kexec_args --command-line=$KDUMP_COMMANDLINE --initrd=$TARGET_INITRD $KDUMP_KERNEL"
$KEXEC $KEXEC_ARGS $standard_kexec_args \ $KEXEC $KEXEC_ARGS $standard_kexec_args \
--command-line="$KDUMP_COMMANDLINE" \ --command-line="$KDUMP_COMMANDLINE" \
--initrd=$TARGET_INITRD $KDUMP_KERNEL --initrd=$TARGET_INITRD $KDUMP_KERNEL
if [ $? == 0 ]; then if [ $? == 0 ]; then
echo "kexec: loaded kdump kernel" dinfo "kexec: loaded kdump kernel"
return 0 return 0
else else
echo "kexec: failed to load kdump kernel" >&2 derror "kexec: failed to load kdump kernel"
return 1 return 1
fi fi
} }
@ -716,7 +739,7 @@ check_ssh_config()
# canonicalize the path # canonicalize the path
SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val) SSH_KEY_LOCATION=$(/usr/bin/readlink -m $config_val)
else else
echo "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'" dwarn "WARNING: '$config_val' doesn't exist, using default value '$SSH_KEY_LOCATION'"
fi fi
;; ;;
path) path)
@ -758,22 +781,22 @@ check_and_wait_network_ready()
if [ $retval -eq 0 ]; then if [ $retval -eq 0 ]; then
return 0 return 0
elif [ $retval -ne 255 ]; then elif [ $retval -ne 255 ]; then
echo "Could not create $DUMP_TARGET:$SAVE_PATH, you should check the privilege on server side" >&2 derror "Could not create $DUMP_TARGET:$SAVE_PATH, you should check the privilege on server side"
return 1 return 1
fi fi
# if server removes the authorized_keys or, no /root/.ssh/kdump_id_rsa # if server removes the authorized_keys or, no /root/.ssh/kdump_id_rsa
echo $errmsg | grep -q "Permission denied\|No such file or directory\|Host key verification failed" ddebug "$errmsg"
echo $errmsg | grep -q "Permission denied\|No such file or directory\|Host key verification failed" &> /dev/null
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then
echo "Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"kdumpctl propagate\"" >&2 derror "Could not create $DUMP_TARGET:$SAVE_PATH, you probably need to run \"kdumpctl propagate\""
return 1 return 1
fi fi
if [ $warn_once -eq 1 ]; then if [ $warn_once -eq 1 ]; then
echo "Network dump target is not usable, waiting for it to be ready" dwarn "Network dump target is not usable, waiting for it to be ready..."
warn_once=0 warn_once=0
fi fi
echo -n .
cur=$(date +%s) cur=$(date +%s)
let "diff = $cur - $start_time" let "diff = $cur - $start_time"
@ -784,7 +807,7 @@ check_and_wait_network_ready()
sleep 1 sleep 1
done done
echo "Could not create $DUMP_TARGET:$SAVE_PATH, ipaddr is not ready yet. You should check network connection" >&2 dinfo "Could not create $DUMP_TARGET:$SAVE_PATH, ipaddr is not ready yet. You should check network connection"
return 1 return 1
} }
@ -801,7 +824,7 @@ propagate_ssh_key()
{ {
check_ssh_config check_ssh_config
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "No ssh config specified in $KDUMP_CONFIG_FILE. Can't propagate" >&2 derror "No ssh config specified in $KDUMP_CONFIG_FILE. Can't propagate"
exit 1 exit 1
fi fi
@ -810,11 +833,11 @@ propagate_ssh_key()
#Check to see if we already created key, if not, create it. #Check to see if we already created key, if not, create it.
if [ -f $KEYFILE ]; then if [ -f $KEYFILE ]; then
echo "Using existing keys..." dinfo "Using existing keys..."
else else
echo -n "Generating new ssh keys... " dinfo "Generating new ssh keys... "
/usr/bin/ssh-keygen -t rsa -f $KEYFILE -N "" 2>&1 > /dev/null /usr/bin/ssh-keygen -t rsa -f $KEYFILE -N "" 2>&1 > /dev/null
echo "done." dinfo "done."
fi fi
#now find the target ssh user and server to contact. #now find the target ssh user and server to contact.
@ -825,10 +848,10 @@ propagate_ssh_key()
ssh-copy-id -i $KEYFILE $SSH_USER@$SSH_SERVER ssh-copy-id -i $KEYFILE $SSH_USER@$SSH_SERVER
RET=$? RET=$?
if [ $RET == 0 ]; then if [ $RET == 0 ]; then
echo $KEYFILE has been added to ~$SSH_USER/.ssh/authorized_keys on $SSH_SERVER dinfo "$KEYFILE has been added to ~$SSH_USER/.ssh/authorized_keys on $SSH_SERVER"
return 0 return 0
else else
echo $errmsg, $KEYFILE failed in transfer to $SSH_SERVER >&2 derror "$errmsg, $KEYFILE failed in transfer to $SSH_SERVER"
exit 1 exit 1
fi fi
} }
@ -838,7 +861,7 @@ show_reserved_mem()
local mem=$(cat /sys/kernel/kexec_crash_size) local mem=$(cat /sys/kernel/kexec_crash_size)
local mem_mb=$(expr $mem / 1024 / 1024) local mem_mb=$(expr $mem / 1024 / 1024)
echo "Reserved "$mem_mb"MB memory for crash kernel" dinfo "Reserved "$mem_mb"MB memory for crash kernel"
} }
check_current_fadump_status() check_current_fadump_status()
@ -868,12 +891,12 @@ save_raw()
raw_target=$(awk '$1 ~ /^raw$/ { print $2; }' $KDUMP_CONFIG_FILE) raw_target=$(awk '$1 ~ /^raw$/ { print $2; }' $KDUMP_CONFIG_FILE)
[ -z "$raw_target" ] && return 0 [ -z "$raw_target" ] && return 0
[ -b "$raw_target" ] || { [ -b "$raw_target" ] || {
echo "raw partition $raw_target not found" derror "raw partition $raw_target not found"
return 1 return 1
} }
check_fs=$(lsblk --nodeps -npo FSTYPE $raw_target) check_fs=$(lsblk --nodeps -npo FSTYPE $raw_target)
if [[ $(echo $check_fs | wc -w) -ne 0 ]]; then if [[ $(echo $check_fs | wc -w) -ne 0 ]]; then
echo "Warning: Detected '$check_fs' signature on $raw_target, data loss is expected." dwarn "Warning: Detected '$check_fs' signature on $raw_target, data loss is expected."
return 0 return 0
fi fi
kdump_dir=`grep ^path $KDUMP_CONFIG_FILE | cut -d' ' -f2-` kdump_dir=`grep ^path $KDUMP_CONFIG_FILE | cut -d' ' -f2-`
@ -885,12 +908,12 @@ save_raw()
mkdir -p "$coredir" mkdir -p "$coredir"
[ -d "$coredir" ] || { [ -d "$coredir" ] || {
echo "failed to create $coredir" derror "failed to create $coredir"
return 1 return 1
} }
if makedumpfile -R $coredir/vmcore <$raw_target >/dev/null 2>&1; then if makedumpfile -R $coredir/vmcore <$raw_target >/dev/null 2>&1; then
# dump found # dump found
echo "Dump saved to $coredir/vmcore" dinfo "Dump saved to $coredir/vmcore"
# wipe makedumpfile header # wipe makedumpfile header
dd if=/dev/zero of=$raw_target bs=1b count=1 2>/dev/null dd if=/dev/zero of=$raw_target bs=1b count=1 2>/dev/null
else else
@ -963,13 +986,13 @@ check_fence_kdump_config()
for node in $nodes; do for node in $nodes; do
if [ "$node" = "$hostname" ]; then if [ "$node" = "$hostname" ]; then
echo "Option fence_kdump_nodes cannot contain $hostname" derror "Option fence_kdump_nodes cannot contain $hostname"
return 1 return 1
fi fi
# node can be ipaddr # node can be ipaddr
echo $ipaddrs | grep $node > /dev/null echo $ipaddrs | grep $node > /dev/null
if [ $? -eq 0 ]; then if [ $? -eq 0 ]; then
echo "Option fence_kdump_nodes cannot contain $node" derror "Option fence_kdump_nodes cannot contain $node"
return 1 return 1
fi fi
done done
@ -991,11 +1014,11 @@ start_fadump()
{ {
echo 1 > $FADUMP_REGISTER_SYS_NODE echo 1 > $FADUMP_REGISTER_SYS_NODE
if ! check_current_fadump_status; then if ! check_current_fadump_status; then
echo "fadump: failed to register" derror "fadump: failed to register"
return 1 return 1
fi fi
echo "fadump: registered successfully" dinfo "fadump: registered successfully"
return 0 return 0
} }
@ -1022,7 +1045,7 @@ check_failure_action_config()
if [ -z "$failure_action" -a -z "$default_option" ]; then if [ -z "$failure_action" -a -z "$default_option" ]; then
return 0 return 0
elif [ -n "$failure_action" -a -n "$default_option" ]; then elif [ -n "$failure_action" -a -n "$default_option" ]; then
echo "Cannot specify 'failure_action' and 'default' option together" derror "Cannot specify 'failure_action' and 'default' option together"
return 1 return 1
fi fi
@ -1036,7 +1059,7 @@ check_failure_action_config()
return 0 return 0
;; ;;
*) *)
echo $"Usage kdump.conf: $option {reboot|halt|poweroff|shell|dump_to_rootfs}" dinfo $"Usage kdump.conf: $option {reboot|halt|poweroff|shell|dump_to_rootfs}"
return 1 return 1
esac esac
} }
@ -1054,7 +1077,7 @@ check_final_action_config()
return 0 return 0
;; ;;
*) *)
echo $"Usage kdump.conf: final_action {reboot|halt|poweroff}" dinfo $"Usage kdump.conf: final_action {reboot|halt|poweroff}"
return 1 return 1
esac esac
fi fi
@ -1064,13 +1087,13 @@ start()
{ {
check_dump_feasibility check_dump_feasibility
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
check_config check_config
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
@ -1080,43 +1103,43 @@ start()
save_raw save_raw
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
check_current_status check_current_status
if [ $? == 0 ]; then if [ $? == 0 ]; then
echo "Kdump already running: [WARNING]" dwarn "Kdump already running: [WARNING]"
return 0 return 0
fi fi
if check_ssh_config; then if check_ssh_config; then
if ! check_ssh_target; then if ! check_ssh_target; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
fi fi
check_rebuild check_rebuild
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
start_dump start_dump
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
echo "Starting kdump: [OK]" dinfo "Starting kdump: [OK]"
} }
reload() reload()
{ {
check_current_status check_current_status
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Kdump was not running: [WARNING]" dwarn "Kdump was not running: [WARNING]"
fi fi
if [ $DEFAULT_DUMP_MODE == "fadump" ]; then if [ $DEFAULT_DUMP_MODE == "fadump" ]; then
@ -1127,36 +1150,36 @@ reload()
fi fi
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Stopping kdump: [FAILED]" derror "Stopping kdump: [FAILED]"
return 1 return 1
fi fi
echo "Stopping kdump: [OK]" dinfo "Stopping kdump: [OK]"
setup_initrd setup_initrd
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
start_dump start_dump
if [ $? -ne 0 ]; then if [ $? -ne 0 ]; then
echo "Starting kdump: [FAILED]" derror "Starting kdump: [FAILED]"
return 1 return 1
fi fi
echo "Starting kdump: [OK]" dinfo "Starting kdump: [OK]"
} }
stop_fadump() stop_fadump()
{ {
echo 0 > $FADUMP_REGISTER_SYS_NODE echo 0 > $FADUMP_REGISTER_SYS_NODE
if check_current_fadump_status; then if check_current_fadump_status; then
echo "fadump: failed to unregister" derror "fadump: failed to unregister"
return 1 return 1
fi fi
echo "fadump: unregistered successfully" dinfo "fadump: unregistered successfully"
return 0 return 0
} }
@ -1169,11 +1192,11 @@ stop_kdump()
fi fi
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "kexec: failed to unload kdump kernel" derror "kexec: failed to unload kdump kernel"
return 1 return 1
fi fi
echo "kexec: unloaded kdump kernel" dinfo "kexec: unloaded kdump kernel"
return 0 return 0
} }
@ -1181,7 +1204,7 @@ reload_fadump()
{ {
echo 1 > $FADUMP_REGISTER_SYS_NODE echo 1 > $FADUMP_REGISTER_SYS_NODE
if [ $? == 0 ]; then if [ $? == 0 ]; then
echo "fadump: re-registered successfully" dinfo "fadump: re-registered successfully"
return 0 return 0
else else
# FADump could fail on older kernel where re-register # FADump could fail on older kernel where re-register
@ -1206,11 +1229,11 @@ stop()
fi fi
if [ $? != 0 ]; then if [ $? != 0 ]; then
echo "Stopping kdump: [FAILED]" derror "Stopping kdump: [FAILED]"
return 1 return 1
fi fi
echo "Stopping kdump: [OK]" dinfo "Stopping kdump: [OK]"
return 0 return 0
} }
@ -1231,13 +1254,13 @@ rebuild() {
return 1 return 1
fi fi
echo "Rebuilding $TARGET_INITRD" dinfo "Rebuilding $TARGET_INITRD"
rebuild_initrd rebuild_initrd
return $? return $?
} }
if [ ! -f "$KDUMP_CONFIG_FILE" ]; then if [ ! -f "$KDUMP_CONFIG_FILE" ]; then
echo "Error: No kdump config file found!" >&2 derror "Error: No kdump config file found!"
exit 1 exit 1
fi fi
@ -1263,11 +1286,11 @@ main ()
check_current_status check_current_status
case "$?" in case "$?" in
0) 0)
echo "Kdump is operational" dinfo "Kdump is operational"
EXIT_CODE=0 EXIT_CODE=0
;; ;;
1) 1)
echo "Kdump is not operational" dinfo "Kdump is not operational"
EXIT_CODE=3 EXIT_CODE=3
;; ;;
esac esac
@ -1292,7 +1315,7 @@ main ()
show_reserved_mem show_reserved_mem
;; ;;
*) *)
echo $"Usage: $0 {start|stop|status|restart|reload|rebuild|propagate|showmem}" dinfo $"Usage: $0 {start|stop|status|restart|reload|rebuild|propagate|showmem}"
exit 1 exit 1
esac esac
} }

2
kexec-tools.spec
View File

@ -37,6 +37,7 @@ Source27: early-kdump-howto.txt
Source28: kdump-udev-throttler Source28: kdump-udev-throttler
Source29: kdump.sysconfig.aarch64 Source29: kdump.sysconfig.aarch64
Source30: 60-kdump.install Source30: 60-kdump.install
Source31: kdump-logger.sh
####################################### #######################################
# These are sources for mkdumpramfs # These are sources for mkdumpramfs
@ -190,6 +191,7 @@ install -m 644 %{SOURCE12} $RPM_BUILD_ROOT%{_mandir}/man8/mkdumprd.8
install -m 644 %{SOURCE25} $RPM_BUILD_ROOT%{_mandir}/man8/kdumpctl.8 install -m 644 %{SOURCE25} $RPM_BUILD_ROOT%{_mandir}/man8/kdumpctl.8
install -m 755 %{SOURCE20} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib.sh install -m 755 %{SOURCE20} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib.sh
install -m 755 %{SOURCE23} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib-initramfs.sh install -m 755 %{SOURCE23} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-lib-initramfs.sh
install -m 755 %{SOURCE31} $RPM_BUILD_ROOT%{_prefix}/lib/kdump/kdump-logger.sh
%ifnarch s390x %ifnarch s390x
install -m 755 %{SOURCE28} $RPM_BUILD_ROOT%{_udevrulesdir}/../kdump-udev-throttler install -m 755 %{SOURCE28} $RPM_BUILD_ROOT%{_udevrulesdir}/../kdump-udev-throttler
%endif %endif

23
mkdumprd
View File

@ -6,11 +6,22 @@
# Written by Cong Wang <amwang@redhat.com> # Written by Cong Wang <amwang@redhat.com>
# #
if [ -f /etc/sysconfig/kdump ]; then
. /etc/sysconfig/kdump
fi
[[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut [[ $dracutbasedir ]] || dracutbasedir=/usr/lib/dracut
. $dracutbasedir/dracut-functions.sh . $dracutbasedir/dracut-functions.sh
. /lib/kdump/kdump-lib.sh . /lib/kdump/kdump-lib.sh
export IN_KDUMP=1 export IN_KDUMP=1
#initiate the kdump logger
dlog_init
if [ $? -ne 0 ]; then
echo "failed to initiate the kdump logger."
exit 1
fi
conf_file="/etc/kdump.conf" conf_file="/etc/kdump.conf"
SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa" SSH_KEY_LOCATION="/root/.ssh/kdump_id_rsa"
SAVE_PATH=$(get_save_path) SAVE_PATH=$(get_save_path)
@ -180,8 +191,8 @@ check_size() {
fi fi
if [ $avail -lt $memtotal ]; then if [ $avail -lt $memtotal ]; then
echo "Warning: There might not be enough space to save a vmcore." dwarn "Warning: There might not be enough space to save a vmcore."
echo " The size of $2 should be greater than $memtotal kilo bytes." dwarn " The size of $2 should be greater than $memtotal kilo bytes."
fi fi
} }
@ -253,7 +264,7 @@ verify_core_collector() {
if [ "$_cmd" != "makedumpfile" ]; then if [ "$_cmd" != "makedumpfile" ]; then
if is_raw_dump_target; then if is_raw_dump_target; then
echo "Warning: specifying a non-makedumpfile core collector, you will have to recover the vmcore manually." dwarn "Warning: specifying a non-makedumpfile core collector, you will have to recover the vmcore manually."
fi fi
return return
fi fi
@ -343,7 +354,7 @@ is_unresettable()
resettable="$(cat $path)" resettable="$(cat $path)"
[ $resettable -eq 0 -a "$OVERRIDE_RESETTABLE" -eq 0 ] && { [ $resettable -eq 0 -a "$OVERRIDE_RESETTABLE" -eq 0 ] && {
local device=$(udevadm info --query=all --path=/sys/dev/block/$1 | awk -F= '/DEVNAME/{print $2}') local device=$(udevadm info --query=all --path=/sys/dev/block/$1 | awk -F= '/DEVNAME/{print $2}')
echo "Error: Can not save vmcore because device $device is unresettable" derror "Error: Can not save vmcore because device $device is unresettable"
return 0 return 0
} }
fi fi
@ -377,7 +388,7 @@ is_crypt()
eval "$line" eval "$line"
[[ "$ID_FS_TYPE" = "crypto_LUKS" ]] && { [[ "$ID_FS_TYPE" = "crypto_LUKS" ]] && {
dev=$(udevadm info --query=all --path=/sys/dev/block/$majmin | awk -F= '/DEVNAME/{print $2}') dev=$(udevadm info --query=all --path=/sys/dev/block/$majmin | awk -F= '/DEVNAME/{print $2}')
echo "Device $dev is encrypted." derror "Device $dev is encrypted."
return 0 return 0
} }
return 1 return 1
@ -400,7 +411,7 @@ if ! check_resettable; then
fi fi
if ! check_crypt; then if ! check_crypt; then
echo "Warning: Encrypted device is in dump path, which is not recommended, see kexec-kdump-howto.txt for more details." dwarn "Warning: Encrypted device is in dump path, which is not recommended, see kexec-kdump-howto.txt for more details."
fi fi
# firstly get right SSH_KEY_LOCATION # firstly get right SSH_KEY_LOCATION