7e10236038
This patch updates kexec-tools from 2.0.15 to 2.0.21 (and its supporting software package makedumpfile from 1.6.2 to 1.6.9) for compatibility with the newer v5.10 kernel. This commit clones the kexec-tools package's supporting files from commit 26a7a543427eac59ed39728466f3d95d320f735a in the CentOS RPM packaging git repository. Links for reference: -26a7a54342-26a7a54342Please note that this patch causes the build system to pull in and extract an SRPM file to acquire: kdump-anaconda-addon-003-29-g4c517c5.tar.gz This is done for security, because the only public reference to commit 4c517c5 is on a Red Hat developer's personal Github account: https://github.com/ryncsn/kdump-anaconda-addon/commits/rhel-7 kexec-tools package's supporting files cloned by this commit trigger a large number of shell script linting errors. Given that the shell scripts in question are inherited from upstream (i.e., CentOS 7), the "files" directory of this package is excluded from automated linting via the changes in tox.ini. Verification: A kexec-tools RPM package built with this commit was installed onto an existing StarlingX system. A vmcore file was succesfully collected from a kernel crash triggered with /proc/sysrq-trigger. A recent version of the crash utility was found to succesfully parse the collected vmcore file. Credits: Thanks to Jiping Ma for helping with cleaning up and publishing an earlier version of this patch. Story: 2008921 Task: 43040 Depends-On: https://review.opendev.org/c/starlingx/tools/+/805127 Signed-off-by: Jiping Ma <jiping.ma2@windriver.com> Signed-off-by: M. Vefa Bicakci <vefa.bicakci@windriver.com> Change-Id: Idc4e523610e4c09259300c8b67ea5e0fbe59c611
783 lines
25 KiB
Bash
Executable File
783 lines
25 KiB
Bash
Executable File
#!/bin/bash
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. $dracutfunctions
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. /lib/kdump/kdump-lib.sh
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if ! [[ -d "${initdir}/tmp" ]]; then
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mkdir -p "${initdir}/tmp"
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fi
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check() {
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[[ $debug ]] && set -x
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#kdumpctl sets this explicitly
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if [ -z "$IN_KDUMP" ] || [ ! -f /etc/kdump.conf ]
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then
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return 1
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fi
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return 0
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}
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depends() {
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local _dep="base shutdown"
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if [ -n "$( find /sys/devices -name drm )" ] || [ -d /sys/module/hyperv_fb ]; then
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_dep="$_dep drm"
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fi
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if is_generic_fence_kdump -o is_pcs_fence_kdump; then
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_dep="$_dep network"
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fi
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echo $_dep
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return 0
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}
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kdump_to_udev_name() {
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local dev="${1//\"/}"
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case "$dev" in
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UUID=*)
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dev=`blkid -U "${dev#UUID=}"`
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;;
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LABEL=*)
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dev=`blkid -L "${dev#LABEL=}"`
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;;
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esac
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echo $(get_persistent_dev "$dev")
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}
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kdump_is_bridge() {
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[ -d /sys/class/net/"$1"/bridge ]
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}
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kdump_is_bond() {
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[ -d /sys/class/net/"$1"/bonding ]
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}
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kdump_is_team() {
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[ -f /usr/bin/teamnl ] && teamnl $1 ports &> /dev/null
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}
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kdump_is_vlan() {
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[ -f /proc/net/vlan/"$1" ]
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}
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# $1: netdev name
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source_ifcfg_file() {
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local ifcfg_file
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ifcfg_file=$(get_ifcfg_filename $1)
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if [ -f "${ifcfg_file}" ]; then
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. ${ifcfg_file}
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else
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dwarning "The ifcfg file of $1 is not found!"
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fi
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}
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# $1: netdev name
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kdump_setup_dns() {
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local _nameserver _dns
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local _dnsfile=${initdir}/etc/cmdline.d/42dns.conf
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source_ifcfg_file $1
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[ -n "$DNS1" ] && echo "nameserver=$DNS1" > "$_dnsfile"
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[ -n "$DNS2" ] && echo "nameserver=$DNS2" >> "$_dnsfile"
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while read content;
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do
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_nameserver=$(echo $content | grep ^nameserver)
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[ -z "$_nameserver" ] && continue
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_dns=$(echo $_nameserver | cut -d' ' -f2)
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[ -z "$_dns" ] && continue
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if [ ! -f $_dnsfile ] || [ ! $(cat $_dnsfile | grep -q $_dns) ]; then
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echo "nameserver=$_dns" >> "$_dnsfile"
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fi
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done < "/etc/resolv.conf"
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}
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#$1: netdev name
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#$2: srcaddr
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#if it use static ip echo it, or echo null
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kdump_static_ip() {
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local _netdev="$1" _srcaddr="$2" _ipv6_flag
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local _netmask _gateway _ipaddr _target _nexthop
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_ipaddr=$(ip addr show dev $_netdev permanent | awk "/ $_srcaddr\/.* /{print \$2}")
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if is_ipv6_address $_srcaddr; then
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_ipv6_flag="-6"
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fi
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if [ -n "$_ipaddr" ]; then
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_gateway=$(ip $_ipv6_flag route list dev $_netdev | \
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awk '/^default /{print $3}' | head -n 1)
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if [ "x" != "x"$_ipv6_flag ]; then
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# _ipaddr="2002::56ff:feb6:56d5/64", _netmask is the number after "/"
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_netmask=${_ipaddr#*\/}
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_srcaddr="[$_srcaddr]"
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_gateway="[$_gateway]"
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else
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_netmask=$(ipcalc -m $_ipaddr | cut -d'=' -f2)
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fi
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echo -n "${_srcaddr}::${_gateway}:${_netmask}::"
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fi
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/sbin/ip $_ipv6_flag route show | grep -v default | grep ".*via.* $_netdev " |\
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while read _route; do
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_target=`echo $_route | cut -d ' ' -f1`
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_nexthop=`echo $_route | cut -d ' ' -f3`
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if [ "x" != "x"$_ipv6_flag ]; then
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_target="[$_target]"
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_nexthop="[$_nexthop]"
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fi
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echo "rd.route=$_target:$_nexthop:$_netdev"
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done >> ${initdir}/etc/cmdline.d/45route-static.conf
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}
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kdump_get_mac_addr() {
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cat /sys/class/net/$1/address
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}
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#Bonding or team master modifies the mac address
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#of its slaves, we should use perm address
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kdump_get_perm_addr() {
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local addr=$(ethtool -P $1 | sed -e 's/Permanent address: //')
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if [ -z "$addr" ] || [ "$addr" = "00:00:00:00:00:00" ]
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then
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derror "Can't get the permanent address of $1"
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else
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echo "$addr"
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fi
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}
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# Prefix kernel assigned names with "kdump-". EX: eth0 -> kdump-eth0
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# Because kernel assigned names are not persistent between 1st and 2nd
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# kernel. We could probably end up with eth0 being eth1, eth0 being
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# eth1, and naming conflict happens.
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kdump_setup_ifname() {
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local _ifname
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# If ifname already has 'kdump-' prefix, we must be switching from
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# fadump to kdump. Skip prefixing 'kdump-' in this case as adding
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# another prefix may truncate the ifname. Since an ifname with
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# 'kdump-' is already persistent, this should be fine.
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if [[ $1 =~ eth* ]] && [[ ! $1 =~ ^kdump-* ]]; then
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_ifname="kdump-$1"
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else
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_ifname="$1"
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fi
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echo "$_ifname"
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}
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kdump_setup_bridge() {
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local _netdev=$1
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local _brif _dev _mac _kdumpdev
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for _dev in `ls /sys/class/net/$_netdev/brif/`; do
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_kdumpdev=$_dev
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if kdump_is_bond "$_dev"; then
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kdump_setup_bond "$_dev"
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elif kdump_is_team "$_dev"; then
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kdump_setup_team "$_dev"
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elif kdump_is_vlan "$_dev"; then
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kdump_setup_vlan "$_dev"
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else
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_mac=$(kdump_get_mac_addr $_dev)
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_kdumpdev=$(kdump_setup_ifname $_dev)
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echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/41bridge.conf
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fi
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_brif+="$_kdumpdev,"
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done
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echo " bridge=$_netdev:$(echo $_brif | sed -e 's/,$//')" >> ${initdir}/etc/cmdline.d/41bridge.conf
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}
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kdump_setup_bond() {
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local _netdev=$1
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local _dev _mac _slaves _kdumpdev
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for _dev in `cat /sys/class/net/$_netdev/bonding/slaves`; do
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_mac=$(kdump_get_perm_addr $_dev)
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_kdumpdev=$(kdump_setup_ifname $_dev)
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echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/42bond.conf
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_slaves+="$_kdumpdev,"
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done
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echo -n " bond=$_netdev:$(echo $_slaves | sed 's/,$//')" >> ${initdir}/etc/cmdline.d/42bond.conf
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# Get bond options specified in ifcfg
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source_ifcfg_file $_netdev
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bondoptions="$(echo :$BONDING_OPTS | sed 's/\s\+/,/')"
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echo "$bondoptions" >> ${initdir}/etc/cmdline.d/42bond.conf
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}
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kdump_setup_team() {
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local _netdev=$1
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local _dev _mac _slaves _kdumpdev
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for _dev in `teamnl $_netdev ports | awk -F':' '{print $2}'`; do
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_mac=$(kdump_get_perm_addr $_dev)
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_kdumpdev=$(kdump_setup_ifname $_dev)
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echo -n " ifname=$_kdumpdev:$_mac" >> ${initdir}/etc/cmdline.d/44team.conf
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_slaves+="$_kdumpdev,"
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done
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echo " team=$_netdev:$(echo $_slaves | sed -e 's/,$//')" >> ${initdir}/etc/cmdline.d/44team.conf
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#Buggy version teamdctl outputs to stderr!
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#Try to use the latest version of teamd.
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teamdctl "$_netdev" config dump > ${initdir}/tmp/$$-$_netdev.conf
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if [ $? -ne 0 ]
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then
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derror "teamdctl failed."
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exit 1
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fi
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inst_dir /etc/teamd
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inst_simple ${initdir}/tmp/$$-$_netdev.conf "/etc/teamd/$_netdev.conf"
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rm -f ${initdir}/tmp/$$-$_netdev.conf
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}
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kdump_setup_vlan() {
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local _netdev=$1
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local _phydev="$(awk '/^Device:/{print $2}' /proc/net/vlan/"$_netdev")"
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local _netmac="$(kdump_get_mac_addr $_phydev)"
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local _kdumpdev
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#Just support vlan over bond, it is not easy
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#to support all other complex setup
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if kdump_is_bridge "$_phydev"; then
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derror "Vlan over bridge is not supported!"
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exit 1
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elif kdump_is_team "$_phydev"; then
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derror "Vlan over team is not supported!"
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exit 1
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elif kdump_is_bond "$_phydev"; then
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kdump_setup_bond "$_phydev"
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echo " vlan=$_netdev:$_phydev" > ${initdir}/etc/cmdline.d/43vlan.conf
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else
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_kdumpdev="$(kdump_setup_ifname $_phydev)"
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echo " vlan=$_netdev:$_kdumpdev ifname=$_kdumpdev:$_netmac" > ${initdir}/etc/cmdline.d/43vlan.conf
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fi
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}
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# setup s390 znet cmdline
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# $1: netdev name
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kdump_setup_znet() {
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local _options=""
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source_ifcfg_file $1
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for i in $OPTIONS; do
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_options=${_options},$i
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done
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echo rd.znet=${NETTYPE},${SUBCHANNELS}${_options} > ${initdir}/etc/cmdline.d/30znet.conf
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}
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# Setup dracut to bringup a given network interface
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kdump_setup_netdev() {
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local _netdev=$1 _srcaddr=$2
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local _static _proto _ip_conf _ip_opts _ifname_opts
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if [ "$(uname -m)" = "s390x" ]; then
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kdump_setup_znet $_netdev
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fi
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_netmac=$(kdump_get_mac_addr $_netdev)
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_static=$(kdump_static_ip $_netdev $_srcaddr)
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if [ -n "$_static" ]; then
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_proto=none
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elif is_ipv6_address $_srcaddr; then
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_proto=either6
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else
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_proto=dhcp
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fi
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_ip_conf="${initdir}/etc/cmdline.d/40ip.conf"
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_ip_opts=" ip=${_static}$(kdump_setup_ifname $_netdev):${_proto}"
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# dracut doesn't allow duplicated configuration for same NIC, even they're exactly the same.
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# so we have to avoid adding duplicates
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# We should also check /proc/cmdline for existing ip=xx arg.
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# For example, iscsi boot will specify ip=xxx arg in cmdline.
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if [ ! -f $_ip_conf ] || ! grep -q $_ip_opts $_ip_conf &&\
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! grep -q "ip=[^[:space:]]*$_netdev" /proc/cmdline; then
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echo "$_ip_opts" >> $_ip_conf
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fi
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if kdump_is_bridge "$_netdev"; then
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kdump_setup_bridge "$_netdev"
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elif kdump_is_bond "$_netdev"; then
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kdump_setup_bond "$_netdev"
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elif kdump_is_team "$_netdev"; then
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kdump_setup_team "$_netdev"
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elif kdump_is_vlan "$_netdev"; then
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kdump_setup_vlan "$_netdev"
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else
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_ifname_opts=" ifname=$(kdump_setup_ifname $_netdev):$(kdump_get_mac_addr $_netdev)"
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echo "$_ifname_opts" >> $_ip_conf
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fi
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kdump_setup_dns "$_netdev"
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}
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get_ip_route_field()
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{
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if `echo $1 | grep -q $2`; then
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echo ${1##*$2} | cut -d ' ' -f1
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fi
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}
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#Function:kdump_install_net
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#$1: config values of net line in kdump.conf
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#$2: srcaddr of network device
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kdump_install_net() {
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local _server _netdev _srcaddr _route _serv_tmp
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local config_val="$1"
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_server=$(get_remote_host $config_val)
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if is_hostname $_server; then
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_serv_tmp=`getent ahosts $_server | grep -v : | head -n 1`
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if [ -z "$_serv_tmp" ]; then
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_serv_tmp=`getent ahosts $_server | head -n 1`
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fi
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_server=`echo $_serv_tmp | cut -d' ' -f1`
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fi
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_route=`/sbin/ip -o route get to $_server 2>&1`
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[ $? != 0 ] && echo "Bad kdump location: $config_val" && exit 1
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#the field in the ip output changes if we go to another subnet
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_srcaddr=$(get_ip_route_field "$_route" "src")
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_netdev=$(get_ip_route_field "$_route" "dev")
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kdump_setup_netdev "${_netdev}" "${_srcaddr}"
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#save netdev used for kdump as cmdline
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# Whoever calling kdump_install_net() is setting up the default gateway,
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# ie. bootdev/kdumpnic. So don't override the setting if calling
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# kdump_install_net() for another time. For example, after setting eth0 as
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# the default gate way for network dump, eth1 in the fence kdump path will
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# call kdump_install_net again and we don't want eth1 to be the default
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# gateway.
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if [ ! -f ${initdir}/etc/cmdline.d/60kdumpnic.conf ] &&
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[ ! -f ${initdir}/etc/cmdline.d/70bootdev.conf ]; then
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echo "kdumpnic=$(kdump_setup_ifname $_netdev)" > ${initdir}/etc/cmdline.d/60kdumpnic.conf
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echo "bootdev=$(kdump_setup_ifname $_netdev)" > ${initdir}/etc/cmdline.d/70bootdev.conf
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fi
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}
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default_dump_target_install_conf()
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{
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local _target _fstype
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local _mntpoint _save_path
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is_user_configured_dump_target && return
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_save_path=$(get_option_value "path")
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[ -z "$_save_path" ] && _save_path=$DEFAULT_PATH
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# strip the duplicated "/"
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_save_path=$(echo $_save_path | tr -s /)
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_mntpoint=$(get_mntpoint_from_path $_save_path)
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_target=$(get_target_from_path $_save_path)
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if is_atomic && is_bind_mount $_mntpoint; then
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_save_path=${_save_path##"$_mntpoint"}
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# the real dump path in the 2nd kernel, if the mount point is bind mounted.
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_save_path=$(get_bind_mount_directory $_mntpoint)/$_save_path
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_mntpoint=$(get_mntpoint_from_target $_target)
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# the absolute path in the 1st kernel
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_save_path=$_mntpoint/$_save_path
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fi
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_fstype=$(get_fs_type_from_target $_target)
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if $(is_fs_type_nfs $_fstype); then
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kdump_install_net "$_target"
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_fstype="nfs"
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else
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_target=$(kdump_to_udev_name $_target)
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fi
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echo "$_fstype $_target" >> ${initdir}/tmp/$$-kdump.conf
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# strip the duplicated "/"
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_save_path=$(echo $_save_path | tr -s /)
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# don't touch the path under root mount
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if [ "$_mntpoint" != "/" ]; then
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_save_path=${_save_path##"$_mntpoint"}
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fi
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#erase the old path line, then insert the parsed path
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sed -i "/^path/d" ${initdir}/tmp/$$-kdump.conf
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echo "path $_save_path" >> ${initdir}/tmp/$$-kdump.conf
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}
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adjust_bind_mount_path()
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{
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local _target=$1
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local _save_path=$(get_option_value "path")
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[ -z "$_save_path" ] && _save_path=$DEFAULT_PATH
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# strip the duplicated "/"
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_save_path=$(echo $_save_path | tr -s /)
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local _absolute_save_path=$(get_mntpoint_from_target $_target)/$_save_path
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_absolute_save_path=$(echo "$_absolute_save_path" | tr -s /)
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local _mntpoint=$(get_mntpoint_from_path $_absolute_save_path)
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if is_bind_mount $_mntpoint; then
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_save_path=${_absolute_save_path##"$_mntpoint"}
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# the real dump path in the 2nd kernel, if the mount point is bind mounted.
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_save_path=$(get_bind_mount_directory $_mntpoint)/$_save_path
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#erase the old path line, then insert the parsed path
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sed -i "/^path/d" ${initdir}/tmp/$$-kdump.conf
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echo "path $_save_path" >> ${initdir}/tmp/$$-kdump.conf
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fi
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}
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#install kdump.conf and what user specifies in kdump.conf
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kdump_install_conf() {
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sed -ne '/^#/!p' /etc/kdump.conf > ${initdir}/tmp/$$-kdump.conf
|
|
|
|
while read config_opt config_val;
|
|
do
|
|
# remove inline comments after the end of a directive.
|
|
config_val=$(strip_comments $config_val)
|
|
case "$config_opt" in
|
|
ext[234]|xfs|btrfs|minix|raw)
|
|
sed -i -e "s#^$config_opt[[:space:]]\+$config_val#$config_opt $(kdump_to_udev_name $config_val)#" ${initdir}/tmp/$$-kdump.conf
|
|
if is_atomic; then
|
|
adjust_bind_mount_path "$config_val"
|
|
fi
|
|
;;
|
|
ssh|nfs)
|
|
kdump_install_net "$config_val"
|
|
;;
|
|
dracut_args)
|
|
if [[ $(get_dracut_args_fstype "$config_val") = nfs* ]] ; then
|
|
kdump_install_net "$(get_dracut_args_target "$config_val")"
|
|
fi
|
|
;;
|
|
kdump_pre|kdump_post|extra_bins)
|
|
dracut_install $config_val
|
|
;;
|
|
core_collector)
|
|
dracut_install "${config_val%%[[:blank:]]*}"
|
|
;;
|
|
esac
|
|
done < /etc/kdump.conf
|
|
|
|
default_dump_target_install_conf
|
|
|
|
kdump_configure_fence_kdump "${initdir}/tmp/$$-kdump.conf"
|
|
inst "${initdir}/tmp/$$-kdump.conf" "/etc/kdump.conf"
|
|
rm -f ${initdir}/tmp/$$-kdump.conf
|
|
}
|
|
|
|
# Default sysctl parameters should suffice for kdump kernel.
|
|
# Remove custom configurations sysctl.conf & sysctl.d/*
|
|
remove_sysctl_conf() {
|
|
|
|
# As custom configurations like vm.min_free_kbytes can lead
|
|
# to OOM issues in kdump kernel, avoid them
|
|
rm -f "${initdir}/etc/sysctl.conf"
|
|
rm -rf "${initdir}/etc/sysctl.d"
|
|
rm -rf "${initdir}/run/sysctl.d"
|
|
rm -rf "${initdir}/usr/lib/sysctl.d"
|
|
}
|
|
|
|
kdump_iscsi_get_rec_val() {
|
|
|
|
local result
|
|
|
|
# The open-iscsi 742 release changed to using flat files in
|
|
# /var/lib/iscsi.
|
|
|
|
result=$(/sbin/iscsiadm --show -m session -r ${1} | grep "^${2} = ")
|
|
result=${result##* = }
|
|
echo $result
|
|
}
|
|
|
|
kdump_get_iscsi_initiator() {
|
|
local _initiator
|
|
local initiator_conf="/etc/iscsi/initiatorname.iscsi"
|
|
|
|
[ -f "$initiator_conf" ] || return 1
|
|
|
|
while read _initiator; do
|
|
[ -z "${_initiator%%#*}" ] && continue # Skip comment lines
|
|
|
|
case $_initiator in
|
|
InitiatorName=*)
|
|
initiator=${_initiator#InitiatorName=}
|
|
echo "rd.iscsi.initiator=${initiator}"
|
|
return 0;;
|
|
*) ;;
|
|
esac
|
|
done < ${initiator_conf}
|
|
|
|
return 1
|
|
}
|
|
|
|
# Figure out iBFT session according to session type
|
|
is_ibft() {
|
|
[ "$(kdump_iscsi_get_rec_val $1 "node.discovery_type")" = fw ]
|
|
}
|
|
|
|
kdump_setup_iscsi_device() {
|
|
local path=$1
|
|
local tgt_name; local tgt_ipaddr;
|
|
local username; local password; local userpwd_str;
|
|
local username_in; local password_in; local userpwd_in_str;
|
|
local netdev
|
|
local srcaddr
|
|
local idev
|
|
local netroot_str ; local initiator_str;
|
|
local netroot_conf="${initdir}/etc/cmdline.d/50iscsi.conf"
|
|
local initiator_conf="/etc/iscsi/initiatorname.iscsi"
|
|
|
|
dinfo "Found iscsi component $1"
|
|
|
|
# Check once before getting explicit values, so we can bail out early,
|
|
# e.g. in case of pure-hardware(all-offload) iscsi.
|
|
if ! /sbin/iscsiadm -m session -r ${path} &>/dev/null ; then
|
|
return 1
|
|
fi
|
|
|
|
if is_ibft ${path}; then
|
|
return
|
|
fi
|
|
|
|
tgt_name=$(kdump_iscsi_get_rec_val ${path} "node.name")
|
|
tgt_ipaddr=$(kdump_iscsi_get_rec_val ${path} "node.conn\[0\].address")
|
|
|
|
# get and set username and password details
|
|
username=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username")
|
|
[ "$username" == "<empty>" ] && username=""
|
|
password=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password")
|
|
[ "$password" == "<empty>" ] && password=""
|
|
username_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.username_in")
|
|
[ -n "$username" ] && userpwd_str="$username:$password"
|
|
|
|
# get and set incoming username and password details
|
|
[ "$username_in" == "<empty>" ] && username_in=""
|
|
password_in=$(kdump_iscsi_get_rec_val ${path} "node.session.auth.password_in")
|
|
[ "$password_in" == "<empty>" ] && password_in=""
|
|
|
|
[ -n "$username_in" ] && userpwd_in_str=":$username_in:$password_in"
|
|
|
|
netdev=$(/sbin/ip route get to ${tgt_ipaddr} | \
|
|
sed 's|.*dev \(.*\).*|\1|g')
|
|
srcaddr=$(echo $netdev | awk '{ print $3; exit }')
|
|
netdev=$(echo $netdev | awk '{ print $1; exit }')
|
|
|
|
kdump_setup_netdev $netdev $srcaddr
|
|
|
|
# prepare netroot= command line
|
|
# FIXME: Do we need to parse and set other parameters like protocol, port
|
|
# iscsi_iface_name, netdev_name, LUN etc.
|
|
|
|
if is_ipv6_address $tgt_ipaddr; then
|
|
tgt_ipaddr="[$tgt_ipaddr]"
|
|
fi
|
|
netroot_str="netroot=iscsi:${userpwd_str}${userpwd_in_str}@$tgt_ipaddr::::$tgt_name"
|
|
|
|
[[ -f $netroot_conf ]] || touch $netroot_conf
|
|
|
|
# If netroot target does not exist already, append.
|
|
if ! grep -q $netroot_str $netroot_conf; then
|
|
echo $netroot_str >> $netroot_conf
|
|
dinfo "Appended $netroot_str to $netroot_conf"
|
|
fi
|
|
|
|
# Setup initator
|
|
initiator_str=$(kdump_get_iscsi_initiator)
|
|
[ $? -ne "0" ] && derror "Failed to get initiator name" && return 1
|
|
|
|
# If initiator details do not exist already, append.
|
|
if ! grep -q "$initiator_str" $netroot_conf; then
|
|
echo "$initiator_str" >> $netroot_conf
|
|
dinfo "Appended "$initiator_str" to $netroot_conf"
|
|
fi
|
|
}
|
|
|
|
kdump_check_iscsi_targets () {
|
|
# If our prerequisites are not met, fail anyways.
|
|
type -P iscsistart >/dev/null || return 1
|
|
|
|
kdump_check_setup_iscsi() (
|
|
local _dev
|
|
_dev=$1
|
|
|
|
[[ -L /sys/dev/block/$_dev ]] || return
|
|
cd "$(readlink -f /sys/dev/block/$_dev)"
|
|
until [[ -d sys || -d iscsi_session ]]; do
|
|
cd ..
|
|
done
|
|
[[ -d iscsi_session ]] && kdump_setup_iscsi_device "$PWD"
|
|
)
|
|
|
|
[[ $hostonly ]] || [[ $mount_needs ]] && {
|
|
for_each_host_dev_and_slaves_all kdump_check_setup_iscsi
|
|
}
|
|
}
|
|
|
|
# retrieves fence_kdump nodes from Pacemaker cluster configuration
|
|
get_pcs_fence_kdump_nodes() {
|
|
local nodes
|
|
|
|
# get cluster nodes from cluster cib, get interface and ip address
|
|
nodelist=`pcs cluster cib | xmllint --xpath "/cib/status/node_state/@uname" -`
|
|
|
|
# nodelist is formed as 'uname="node1" uname="node2" ... uname="nodeX"'
|
|
# we need to convert each to node1, node2 ... nodeX in each iteration
|
|
for node in ${nodelist}; do
|
|
# convert $node from 'uname="nodeX"' to 'nodeX'
|
|
eval $node
|
|
nodename=$uname
|
|
# Skip its own node name
|
|
if [ "$nodename" = `hostname` -o "$nodename" = `hostname -s` ]; then
|
|
continue
|
|
fi
|
|
nodes="$nodes $nodename"
|
|
done
|
|
|
|
echo $nodes
|
|
}
|
|
|
|
# retrieves fence_kdump args from config file
|
|
get_pcs_fence_kdump_args() {
|
|
if [ -f $FENCE_KDUMP_CONFIG_FILE ]; then
|
|
. $FENCE_KDUMP_CONFIG_FILE
|
|
echo $FENCE_KDUMP_OPTS
|
|
fi
|
|
}
|
|
|
|
# setup fence_kdump in cluster
|
|
# setup proper network and install needed files
|
|
kdump_configure_fence_kdump () {
|
|
local kdump_cfg_file=$1
|
|
local nodes
|
|
local args
|
|
|
|
if is_generic_fence_kdump; then
|
|
nodes=$(get_option_value "fence_kdump_nodes")
|
|
|
|
elif is_pcs_fence_kdump; then
|
|
nodes=$(get_pcs_fence_kdump_nodes)
|
|
|
|
# set appropriate options in kdump.conf
|
|
echo "fence_kdump_nodes $nodes" >> ${kdump_cfg_file}
|
|
|
|
args=$(get_pcs_fence_kdump_args)
|
|
if [ -n "$args" ]; then
|
|
echo "fence_kdump_args $args" >> ${kdump_cfg_file}
|
|
fi
|
|
|
|
else
|
|
# fence_kdump not configured
|
|
return 1
|
|
fi
|
|
|
|
# setup network for each node
|
|
for node in ${nodes}; do
|
|
kdump_install_net $node
|
|
done
|
|
|
|
dracut_install /etc/hosts
|
|
dracut_install /etc/nsswitch.conf
|
|
dracut_install $FENCE_KDUMP_SEND
|
|
}
|
|
|
|
# Install a random seed used to feed /dev/urandom
|
|
# By the time kdump service starts, /dev/uramdom is already fed by systemd
|
|
kdump_install_random_seed() {
|
|
local poolsize=`cat /proc/sys/kernel/random/poolsize`
|
|
|
|
if [ ! -d ${initdir}/var/lib/ ]; then
|
|
mkdir -p ${initdir}/var/lib/
|
|
fi
|
|
|
|
dd if=/dev/urandom of=${initdir}/var/lib/random-seed \
|
|
bs=$poolsize count=1 2> /dev/null
|
|
}
|
|
|
|
remove_cpu_online_rule() {
|
|
local file=${initdir}/usr/lib/udev/rules.d/40-redhat.rules
|
|
|
|
sed -i '/SUBSYSTEM=="cpu"/d' $file
|
|
}
|
|
|
|
install() {
|
|
local arch
|
|
|
|
kdump_install_conf
|
|
remove_sysctl_conf
|
|
|
|
# Onlining secondary cpus breaks kdump completely on KVM on Power hosts
|
|
# Though we use maxcpus=1 by default but 40-redhat.rules will bring up all
|
|
# possible cpus by default. (rhbz1270174 rhbz1266322)
|
|
# Thus before we get the kernel fix and the systemd rule fix let's remove
|
|
# the cpu online rule in kdump initramfs.
|
|
arch=$(uname -m)
|
|
if [[ "$arch" = "ppc64le" ]] || [[ "$arch" = "ppc64" ]]; then
|
|
remove_cpu_online_rule
|
|
fi
|
|
|
|
if is_ssh_dump_target; then
|
|
kdump_install_random_seed
|
|
fi
|
|
dracut_install -o /etc/adjtime /etc/localtime
|
|
inst "$moddir/monitor_dd_progress" "/kdumpscripts/monitor_dd_progress"
|
|
chmod +x ${initdir}/kdumpscripts/monitor_dd_progress
|
|
inst "/bin/grep" "/bin/grep"
|
|
inst "/bin/cat" "/bin/cat"
|
|
inst "/bin/rm" "/bin/rm"
|
|
inst "/bin/dd" "/bin/dd"
|
|
inst "/bin/tail" "/bin/tail"
|
|
inst "/bin/date" "/bin/date"
|
|
inst "/bin/sync" "/bin/sync"
|
|
inst "/bin/cut" "/bin/cut"
|
|
inst "/bin/head" "/bin/head"
|
|
inst "/sbin/makedumpfile" "/sbin/makedumpfile"
|
|
inst "/sbin/vmcore-dmesg" "/sbin/vmcore-dmesg"
|
|
inst "/lib/kdump/kdump-lib.sh" "/lib/kdump-lib.sh"
|
|
inst "/lib/kdump/kdump-lib-initramfs.sh" "/lib/kdump-lib-initramfs.sh"
|
|
inst "$moddir/kdump.sh" "/usr/bin/kdump.sh"
|
|
inst "$moddir/kdump-capture.service" "$systemdsystemunitdir/kdump-capture.service"
|
|
ln_r "$systemdsystemunitdir/kdump-capture.service" "$systemdsystemunitdir/initrd.target.wants/kdump-capture.service"
|
|
inst "$moddir/kdump-error-handler.sh" "/usr/bin/kdump-error-handler.sh"
|
|
inst "$moddir/kdump-error-handler.service" "$systemdsystemunitdir/kdump-error-handler.service"
|
|
# Replace existing emergency service and emergency target
|
|
cp "$moddir/kdump-emergency.service" "$initdir/$systemdsystemunitdir/emergency.service"
|
|
cp "$moddir/kdump-emergency.target" "$initdir/$systemdsystemunitdir/emergency.target"
|
|
# Also redirect dracut-emergency to kdump error handler
|
|
ln_r "$systemdsystemunitdir/emergency.service" "$systemdsystemunitdir/dracut-emergency.service"
|
|
|
|
# Check for all the devices and if any device is iscsi, bring up iscsi
|
|
# target. Ideally all this should be pushed into dracut iscsi module
|
|
# at some point of time.
|
|
kdump_check_iscsi_targets
|
|
|
|
# For the lvm type target under kdump, in /etc/lvm/lvm.conf we can
|
|
# safely replace "reserved_memory=XXXX"(default value is 8192) with
|
|
# "reserved_memory=1024" to lower memory pressure under kdump. We do
|
|
# it unconditionally here, if "/etc/lvm/lvm.conf" doesn't exist, it
|
|
# actually does nothing.
|
|
sed -i -e \
|
|
's/\(^[[:space:]]*reserved_memory[[:space:]]*=\)[[:space:]]*[[:digit:]]*/\1 1024/' \
|
|
${initdir}/etc/lvm/lvm.conf &>/dev/null
|
|
|
|
# Kdump turns out to require longer default systemd mount timeout
|
|
# than 1st kernel(90s by default), we use default 300s for kdump.
|
|
grep -r "^[[:space:]]*DefaultTimeoutStartSec=" ${initdir}/etc/systemd/system.conf* &>/dev/null
|
|
if [ $? -ne 0 ]; then
|
|
mkdir -p ${initdir}/etc/systemd/system.conf.d
|
|
echo "[Manager]" > ${initdir}/etc/systemd/system.conf.d/kdump.conf
|
|
echo "DefaultTimeoutStartSec=300s" >> ${initdir}/etc/systemd/system.conf.d/kdump.conf
|
|
fi
|
|
}
|