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Edit File : kdump.sh \| Size : 7.88 KB
#!/bin/sh # continue here only if we have to save dump. if [ -f /etc/fadump.initramfs ] && [ ! -f /proc/device-tree/rtas/ibm,kernel-dump ] && [ ! -f /proc/device-tree/ibm,opal/dump/mpipl-boot ]; then exit 0 fi . /lib/dracut-lib.sh . /lib/kdump-lib-initramfs.sh set -o pipefail DUMP_RETVAL=0 export PATH=$PATH:$KDUMP_SCRIPT_DIR do_dump() { local _ret eval $DUMP_INSTRUCTION _ret=$? if [ $_ret -ne 0 ]; then derror "saving vmcore failed" fi return $_ret } do_kdump_pre() { local _ret if [ -n "$KDUMP_PRE" ]; then "$KDUMP_PRE" _ret=$? if [ $_ret -ne 0 ]; then derror "$KDUMP_PRE exited with $_ret status" return $_ret fi fi # if any script fails, it just raises warning and continues if [ -d /etc/kdump/pre.d ]; then for file in /etc/kdump/pre.d/; do "$file" _ret=$? if [ $_ret -ne 0 ]; then derror "$file exited with $_ret status" fi done fi return 0 } do_kdump_post() { local _ret if [ -d /etc/kdump/post.d ]; then for file in /etc/kdump/post.d/; do "$file" "$1" _ret=$? if [ $_ret -ne 0 ]; then derror "$file exited with $_ret status" fi done fi if [ -n "$KDUMP_POST" ]; then "$KDUMP_POST" "$1" _ret=$? if [ $_ret -ne 0 ]; then derror "$KDUMP_POST exited with $_ret status" fi fi } add_dump_code() { DUMP_INSTRUCTION=$1 } dump_raw() { local _raw=$1 [ -b "$_raw" ] \|\| return 1 dinfo "saving to raw disk $_raw" if ! $(echo -n $CORE_COLLECTOR\|grep -q makedumpfile); then _src_size=`ls -l /proc/vmcore \| cut -d' ' -f5` _src_size_mb=$(($_src_size / 1048576)) monitor_dd_progress $_src_size_mb & fi dinfo "saving vmcore" $CORE_COLLECTOR /proc/vmcore \| dd of=$_raw bs=$DD_BLKSIZE >> /tmp/dd_progress_file 2>&1 \|\| return 1 sync dinfo "saving vmcore complete" return 0 } dump_ssh() { local _ret=0 local _exitcode=0 _exitcode2=0 local _opt="-i $1 -o BatchMode=yes -o StrictHostKeyChecking=yes" local _dir="$KDUMP_PATH/$HOST_IP-$DATEDIR" local _host=$2 local _vmcore="vmcore" local _ipv6_addr="" _username="" dinfo "saving to $_host:$_dir" cat /var/lib/random-seed > /dev/urandom ssh -q $_opt $_host mkdir -p $_dir \|\| return 1 save_vmcore_dmesg_ssh ${DMESG_COLLECTOR} ${_dir} "${_opt}" $_host save_opalcore_ssh ${_dir} "${_opt}" $_host dinfo "saving vmcore" if is_ipv6_address "$_host"; then _username=${_host%@} _ipv6_addr="[${_host#@}]" fi if [ "${CORE_COLLECTOR%%[[:blank:]]}" = "scp" ]; then if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then scp -q $_opt /proc/vmcore "$_username@$_ipv6_addr:$_dir/vmcore-incomplete" else scp -q $_opt /proc/vmcore "$_host:$_dir/vmcore-incomplete" fi _exitcode=$? else $CORE_COLLECTOR /proc/vmcore \| ssh $_opt $_host "umask 0077 && dd bs=512 of=$_dir/vmcore-incomplete" _exitcode=$? _vmcore="vmcore.flat" fi if [ $_exitcode -eq 0 ]; then ssh $_opt $_host "mv $_dir/vmcore-incomplete $_dir/$_vmcore" _exitcode2=$? if [ $_exitcode2 -ne 0 ]; then derror "moving vmcore failed, _exitcode:$_exitcode2" else dinfo "saving vmcore complete" fi else derror "saving vmcore failed, _exitcode:$_exitcode" fi dinfo "saving the $KDUMP_LOG_FILE to $_host:$_dir/" save_log if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then scp -q $_opt $KDUMP_LOG_FILE "$_username@$_ipv6_addr:$_dir/" else scp -q $_opt $KDUMP_LOG_FILE "$_host:$_dir/" fi _ret=$? if [ $_ret -ne 0 ]; then derror "saving log file failed, _exitcode:$_ret" fi if [ $_exitcode -ne 0 ] \|\| [ $_exitcode2 -ne 0 ];then return 1 fi return 0 } save_opalcore_ssh() { local _path=$1 local _opts="$2" local _location=$3 local _user_name="" _ipv6addr="" ddebug "_path=$_path _opts=$_opts _location=$_location" if [ ! -f $OPALCORE ]; then # Check if we are on an old kernel that uses a different path if [ -f /sys/firmware/opal/core ]; then OPALCORE="/sys/firmware/opal/core" else return 0 fi fi if is_ipv6_address "$_host"; then _user_name=${_location%@} _ipv6addr="[${_location#@}]" fi dinfo "saving opalcore:$OPALCORE to $_location:$_path" if [ -n "$_user_name" ] && [ -n "$_ipv6addr" ]; then scp $_opts $OPALCORE $_user_name@$_ipv6addr:$_path/opalcore-incomplete else scp $_opts $OPALCORE $_location:$_path/opalcore-incomplete fi if [ $? -ne 0 ]; then derror "saving opalcore failed" return 1 fi ssh $_opts $_location mv $_path/opalcore-incomplete $_path/opalcore dinfo "saving opalcore complete" return 0 } save_vmcore_dmesg_ssh() { local _dmesg_collector=$1 local _path=$2 local _opts="$3" local _location=$4 dinfo "saving vmcore-dmesg.txt to $_location:$_path" $_dmesg_collector /proc/vmcore \| ssh $_opts $_location "umask 0077 && dd of=$_path/vmcore-dmesg-incomplete.txt" _exitcode=$? if [ $_exitcode -eq 0 ]; then ssh -q $_opts $_location mv $_path/vmcore-dmesg-incomplete.txt $_path/vmcore-dmesg.txt dinfo "saving vmcore-dmesg.txt complete" else derror "saving vmcore-dmesg.txt failed" fi } get_host_ip() { local _host if is_nfs_dump_target \|\| is_ssh_dump_target then kdumpnic=$(getarg kdumpnic=) [ -z "$kdumpnic" ] && derror "failed to get kdumpnic!" && return 1 _host=`ip addr show dev $kdumpnic\|grep '[ ]inet'` [ $? -ne 0 ] && derror "wrong kdumpnic: $kdumpnic" && return 1 _host=`echo $_host \| head -n 1 \| cut -d' ' -f2` _host="${_host%%/*}" [ -z "$_host" ] && derror "wrong kdumpnic: $kdumpnic" && return 1 HOST_IP=$_host fi return 0 } read_kdump_conf() { if [ ! -f "$KDUMP_CONF" ]; then derror "$KDUMP_CONF not found" return fi get_kdump_confs # rescan for add code for dump target while read config_opt config_val; do # remove inline comments after the end of a directive. case "$config_opt" in dracut_args) config_val=$(get_dracut_args_target "$config_val") if [ -n "$config_val" ]; then config_val=$(get_mntpoint_from_target "$config_val") add_dump_code "dump_fs $config_val" fi ;; ext[234]\|xfs\|btrfs\|minix\|nfs) config_val=$(get_mntpoint_from_target "$config_val") add_dump_code "dump_fs $config_val" ;; raw) add_dump_code "dump_raw $config_val" ;; ssh) add_dump_code "dump_ssh $SSH_KEY_LOCATION $config_val" ;; esac done <<< "$(read_strip_comments $KDUMP_CONF)" } fence_kdump_notify() { if [ -n "$FENCE_KDUMP_NODES" ]; then $FENCE_KDUMP_SEND $FENCE_KDUMP_ARGS $FENCE_KDUMP_NODES & fi } read_kdump_conf fence_kdump_notify get_host_ip if [ $? -ne 0 ]; then derror "get_host_ip exited with non-zero status!" exit 1 fi if [ -z "$DUMP_INSTRUCTION" ]; then add_dump_code "dump_fs $NEWROOT" fi do_kdump_pre if [ $? -ne 0 ]; then derror "kdump_pre script exited with non-zero status!" do_final_action # During systemd service to reboot the machine, stop this shell script running exit 1 fi make_trace_mem "kdump saving vmcore" '1:shortmem' '2+:mem' '3+:slab' do_dump DUMP_RETVAL=$? do_kdump_post $DUMP_RETVAL if [ $? -ne 0 ]; then derror "kdump_post script exited with non-zero status!" fi if [ $DUMP_RETVAL -ne 0 ]; then exit 1 fi do_final_action Back

Edit File : kdump.sh | Size : 7.88 KB

#!/bin/sh

# continue here only if we have to save dump.
if [ -f /etc/fadump.initramfs ] && [ ! -f /proc/device-tree/rtas/ibm,kernel-dump ] && [ ! -f /proc/device-tree/ibm,opal/dump/mpipl-boot ]; then
    exit 0
fi

. /lib/dracut-lib.sh
. /lib/kdump-lib-initramfs.sh

set -o pipefail
DUMP_RETVAL=0

export PATH=$PATH:$KDUMP_SCRIPT_DIR

do_dump()
{
    local _ret

eval $DUMP_INSTRUCTION
    _ret=$?

if [ $_ret -ne 0 ]; then
        derror "saving vmcore failed"
    fi

return $_ret
}

do_kdump_pre()
{
    local _ret

if [ -n "$KDUMP_PRE" ]; then
        "$KDUMP_PRE"
        _ret=$?
        if [ $_ret -ne 0 ]; then
            derror "$KDUMP_PRE exited with $_ret status"
            return $_ret
        fi
    fi

# if any script fails, it just raises warning and continues
    if [ -d /etc/kdump/pre.d ]; then
        for file in /etc/kdump/pre.d/*; do
            "$file"
            _ret=$?
            if [ $_ret -ne 0 ]; then
                derror "$file exited with $_ret status"
            fi
        done
    fi
    return 0
}

do_kdump_post()
{
    local _ret

if [ -d /etc/kdump/post.d ]; then
        for file in /etc/kdump/post.d/*; do
            "$file" "$1"
            _ret=$?
            if [ $_ret -ne 0 ]; then
                derror "$file exited with $_ret status"
            fi
        done
    fi

if [ -n "$KDUMP_POST" ]; then
        "$KDUMP_POST" "$1"
        _ret=$?
        if [ $_ret -ne 0 ]; then
            derror "$KDUMP_POST exited with $_ret status"
        fi
    fi
}

add_dump_code()
{
    DUMP_INSTRUCTION=$1
}

dump_raw()
{
    local _raw=$1

[ -b "$_raw" ] || return 1

dinfo "saving to raw disk $_raw"

if ! $(echo -n $CORE_COLLECTOR|grep -q makedumpfile); then
        _src_size=`ls -l /proc/vmcore | cut -d' ' -f5`
        _src_size_mb=$(($_src_size / 1048576))
        monitor_dd_progress $_src_size_mb &
    fi

dinfo "saving vmcore"
    $CORE_COLLECTOR /proc/vmcore | dd of=$_raw bs=$DD_BLKSIZE >> /tmp/dd_progress_file 2>&1 || return 1
    sync

dinfo "saving vmcore complete"
    return 0
}

dump_ssh()
{
    local _ret=0
    local _exitcode=0 _exitcode2=0
    local _opt="-i $1 -o BatchMode=yes -o StrictHostKeyChecking=yes"
    local _dir="$KDUMP_PATH/$HOST_IP-$DATEDIR"
    local _host=$2
    local _vmcore="vmcore"
    local _ipv6_addr="" _username=""

dinfo "saving to $_host:$_dir"

cat /var/lib/random-seed > /dev/urandom
    ssh -q $_opt $_host mkdir -p $_dir || return 1

save_vmcore_dmesg_ssh ${DMESG_COLLECTOR} ${_dir} "${_opt}" $_host
    save_opalcore_ssh ${_dir} "${_opt}" $_host

dinfo "saving vmcore"

if is_ipv6_address "$_host"; then
        _username=${_host%@*}
        _ipv6_addr="[${_host#*@}]"
    fi

if [ "${CORE_COLLECTOR%%[[:blank:]]*}" = "scp" ]; then
        if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then
            scp -q $_opt /proc/vmcore "$_username@$_ipv6_addr:$_dir/vmcore-incomplete"
        else
            scp -q $_opt /proc/vmcore "$_host:$_dir/vmcore-incomplete"
        fi
        _exitcode=$?
    else
        $CORE_COLLECTOR /proc/vmcore | ssh $_opt $_host "umask 0077 && dd bs=512 of=$_dir/vmcore-incomplete"
        _exitcode=$?
        _vmcore="vmcore.flat"
    fi

if [ $_exitcode -eq 0 ]; then
        ssh $_opt $_host "mv $_dir/vmcore-incomplete $_dir/$_vmcore"
        _exitcode2=$?
        if [ $_exitcode2 -ne 0 ]; then
            derror "moving vmcore failed, _exitcode:$_exitcode2"
        else
            dinfo "saving vmcore complete"
        fi
    else
        derror "saving vmcore failed, _exitcode:$_exitcode"
    fi

dinfo "saving the $KDUMP_LOG_FILE to $_host:$_dir/"
    save_log
    if [ -n "$_username" ] && [ -n "$_ipv6_addr" ]; then
        scp -q $_opt $KDUMP_LOG_FILE "$_username@$_ipv6_addr:$_dir/"
    else
        scp -q $_opt $KDUMP_LOG_FILE "$_host:$_dir/"
    fi
    _ret=$?
    if [ $_ret -ne 0 ]; then
        derror "saving log file failed, _exitcode:$_ret"
    fi

if [ $_exitcode -ne 0 ] || [ $_exitcode2 -ne 0 ];then
        return 1
    fi

return 0
}

save_opalcore_ssh() {
    local _path=$1
    local _opts="$2"
    local _location=$3
    local _user_name="" _ipv6addr=""

ddebug "_path=$_path _opts=$_opts _location=$_location"

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

if is_ipv6_address "$_host"; then
        _user_name=${_location%@*}
        _ipv6addr="[${_location#*@}]"
    fi

dinfo "saving opalcore:$OPALCORE to $_location:$_path"

if [ -n "$_user_name" ] && [ -n "$_ipv6addr" ]; then
        scp $_opts $OPALCORE $_user_name@$_ipv6addr:$_path/opalcore-incomplete
    else
        scp $_opts $OPALCORE $_location:$_path/opalcore-incomplete
    fi
    if [ $? -ne 0 ]; then
        derror "saving opalcore failed"
       return 1
    fi

ssh $_opts $_location mv $_path/opalcore-incomplete $_path/opalcore
    dinfo "saving opalcore complete"
    return 0
}

save_vmcore_dmesg_ssh() {
    local _dmesg_collector=$1
    local _path=$2
    local _opts="$3"
    local _location=$4

dinfo "saving vmcore-dmesg.txt to $_location:$_path"
    $_dmesg_collector /proc/vmcore | ssh $_opts $_location "umask 0077 && dd of=$_path/vmcore-dmesg-incomplete.txt"
    _exitcode=$?

if [ $_exitcode -eq 0 ]; then
        ssh -q $_opts $_location mv $_path/vmcore-dmesg-incomplete.txt $_path/vmcore-dmesg.txt
        dinfo "saving vmcore-dmesg.txt complete"
    else
        derror "saving vmcore-dmesg.txt failed"
    fi
}

get_host_ip()
{
    local _host
    if is_nfs_dump_target || is_ssh_dump_target
    then
        kdumpnic=$(getarg kdumpnic=)
        [ -z "$kdumpnic" ] && derror "failed to get kdumpnic!" && return 1
        _host=`ip addr show dev $kdumpnic|grep '[ ]*inet'`
        [ $? -ne 0 ] && derror "wrong kdumpnic: $kdumpnic" && return 1
        _host=`echo $_host | head -n 1 | cut -d' ' -f2`
        _host="${_host%%/*}"
        [ -z "$_host" ] && derror "wrong kdumpnic: $kdumpnic" && return 1
        HOST_IP=$_host
    fi
    return 0
}

read_kdump_conf()
{
    if [ ! -f "$KDUMP_CONF" ]; then
        derror "$KDUMP_CONF not found"
        return
    fi

get_kdump_confs

# rescan for add code for dump target
    while read config_opt config_val;
    do
        # remove inline comments after the end of a directive.
        case "$config_opt" in
        dracut_args)
            config_val=$(get_dracut_args_target "$config_val")
            if [ -n "$config_val" ]; then
                config_val=$(get_mntpoint_from_target "$config_val")
                add_dump_code "dump_fs $config_val"
            fi
            ;;
        ext[234]|xfs|btrfs|minix|nfs)
            config_val=$(get_mntpoint_from_target "$config_val")
            add_dump_code "dump_fs $config_val"
            ;;
        raw)
            add_dump_code "dump_raw $config_val"
            ;;
        ssh)
            add_dump_code "dump_ssh $SSH_KEY_LOCATION $config_val"
            ;;
        esac
    done <<< "$(read_strip_comments $KDUMP_CONF)"
}

fence_kdump_notify()
{
    if [ -n "$FENCE_KDUMP_NODES" ]; then
        $FENCE_KDUMP_SEND $FENCE_KDUMP_ARGS $FENCE_KDUMP_NODES &
    fi
}

read_kdump_conf
fence_kdump_notify

get_host_ip
if [ $? -ne 0 ]; then
    derror "get_host_ip exited with non-zero status!"
    exit 1
fi

if [ -z "$DUMP_INSTRUCTION" ]; then
    add_dump_code "dump_fs $NEWROOT"
fi

do_kdump_pre
if [ $? -ne 0 ]; then
    derror "kdump_pre script exited with non-zero status!"
    do_final_action
    # During systemd service to reboot the machine, stop this shell script running
    exit 1
fi
make_trace_mem "kdump saving vmcore" '1:shortmem' '2+:mem' '3+:slab'
do_dump
DUMP_RETVAL=$?

do_kdump_post $DUMP_RETVAL
if [ $? -ne 0 ]; then
    derror "kdump_post script exited with non-zero status!"
fi

if [ $DUMP_RETVAL -ne 0 ]; then
    exit 1
fi

do_final_action

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