ecbf6f298f
As part of the upstreaming effort, we need to add some extra tunings in the package. Especially related to GRUB autosetting and Pstore memory settings: (a) Currently the ramoops record size and memory amount are hardcoded in the kdump-load script - we change it here, by having these settings on the kdump config file; (b) GRUB autosetting is pretty simple and everything is hardcoded. We hereby add a bunch of configurable settings in the kdump conf file, in order we can customize the GRUB handling, to make it work in both Arch and SteamOS. While at it, fixed some related comments and renamed some variables, usually dropping KDUMP_ name when it applies to pstore as well. Also, bumped the crashkernel memory from 192M to 256M - recent kernels demand more memory, let's play safe. Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
147 lines
4.1 KiB
Bash
147 lines
4.1 KiB
Bash
#!/bin/sh
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#
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# SPDX-License-Identifier: LGPL-2.1+
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#
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# Copyright (c) 2021 Valve.
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# Maintainer: Guilherme G. Piccoli <gpiccoli@igalia.com>
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#
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# This is the kdump/pstore log collector; this script prepares the
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# collected data and save it in the local disk, in the next successful boot.
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#
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# Load the necessary external variables, otherwise it'll fail later.
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HAVE_CFG_FILES=0
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shopt -s nullglob
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for cfg in "/usr/share/kdump.d"/*; do
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if [ -f "$cfg" ]; then
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. "$cfg"
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HAVE_CFG_FILES=1
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fi
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done
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shopt -u nullglob
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if [ ${HAVE_CFG_FILES} -eq 0 ]; then
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logger "kdump: no config files in /usr/share/kdump.d/ - aborting."
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exit 1
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fi
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MAIN_FOLDER="$(cat "${MNT_TMP}")"
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rm -f "${MNT_TMP}"
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if [ ! -d "${MAIN_FOLDER}" ]; then
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logger "kdump: invalid folder (${MAIN_FOLDER}) - aborting..."
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exit 1
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fi
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LOGS_FOUND=0
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KDUMP_TMP_FOLDER="${MAIN_FOLDER}/.tmp"
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# Use UTC timezone to match kdump collection
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CURRENT_TSTAMP=$(date -u +"%Y%m%d%H%M")
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# By default, pstore is mounted in this location; if it isn't, we bail-out.
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# Notice we currently only support the logs generated by the ramoops backend.
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PSTORE_CNT=$(find /sys/fs/pstore/* 2>/dev/null | grep -c ramoops)
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if [ "${PSTORE_CNT}" -ne 0 ]; then
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PSTORE_FOLDER="${KDUMP_TMP_FOLDER}/pstore"
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mkdir -p "${PSTORE_FOLDER}"
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LOOP_CNT=0
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while [ "${PSTORE_CNT}" -gt 0 ]; do
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PSTORE_FILE="$(find /sys/fs/pstore/* | grep ramoops | sort | head -n1)"
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SAVED_FILE="${PSTORE_FOLDER}/dmesg-pstore.${CURRENT_TSTAMP}-${LOOP_CNT}"
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cat "${PSTORE_FILE}" > "${SAVED_FILE}"
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sync "${SAVED_FILE}"
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rm -f "${PSTORE_FILE}"
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PSTORE_CNT=$((PSTORE_CNT - 1))
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LOOP_CNT=$((LOOP_CNT + 1))
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done
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LOGS_FOUND=${LOOP_CNT}
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# Logs should live on <...>/.tmp folder, due to the zip compression.
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mv "${PSTORE_FOLDER}"/* "${KDUMP_TMP_FOLDER}/" 2>/dev/null
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rm -rf "${PSTORE_FOLDER}"
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fi
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# Now, we proceed the same way if there are kdump data.
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KDUMP_CRASH_FOLDER="${MAIN_FOLDER}/crash"
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KDUMP_CNT=$(find "${KDUMP_CRASH_FOLDER}"/* -type d 2>/dev/null | wc -l)
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if [ "${KDUMP_CNT}" -ne 0 ]; then
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KD_FOLDER="${KDUMP_TMP_FOLDER}/kdump"
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mkdir -p "${KD_FOLDER}"
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LOOP_CNT=0
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while [ "${KDUMP_CNT}" -gt 0 ]; do
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CRASH_CURRENT=$(find "${KDUMP_CRASH_FOLDER}"/* -type d 2>/dev/null | head -n1)
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# When collecting the vmcore/dmesg during kdump, folder is
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# saved with its name == the timestamp of the collection.
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CRASH_TSTAMP=$(basename "${CRASH_CURRENT}")
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if [ -s "${CRASH_CURRENT}/dmesg.txt" ]; then
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SAVED_FILE="${KD_FOLDER}/dmesg-kdump.${CRASH_TSTAMP}"
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mv "${CRASH_CURRENT}/dmesg.txt" "${SAVED_FILE}"
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sync "${SAVED_FILE}"
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fi
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# We won't pack vmcores in the zip blob, but let's save
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# it in case it was collected as well.
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if [ -s "${CRASH_CURRENT}/vmcore.compressed" ]; then
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SAVED_FILE="${KDUMP_CRASH_FOLDER}/vmcore.${CRASH_TSTAMP}"
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mv "${CRASH_CURRENT}/vmcore.compressed" "${SAVED_FILE}"
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sync "${SAVED_FILE}"
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fi
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rm -rf "${CRASH_CURRENT}"
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KDUMP_CNT=$((KDUMP_CNT - 1))
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LOOP_CNT=$((LOOP_CNT + 1))
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done
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LOGS_FOUND=$((LOGS_FOUND + LOOP_CNT))
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# Logs should live on .tmp folder, due to the zip compression.
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mv "${KD_FOLDER}"/* "${KDUMP_TMP_FOLDER}/" 2>/dev/null
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rm -rf "${KD_FOLDER}"
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fi
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# If we have pstore and/or kdump logs, let's process them...
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LOGS_FOLDER="${MAIN_FOLDER}/logs"
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if [ ${LOGS_FOUND} -ne 0 ]; then
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mkdir -p "${LOGS_FOLDER}"
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# First we collect some more info, like DMI data, os-release, etc;
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DMI_FNAME="${KDUMP_TMP_FOLDER}/dmidecode.${CURRENT_TSTAMP}"
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dmidecode > "${DMI_FNAME}"
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BUILD_FNAME="${KDUMP_TMP_FOLDER}/build.${CURRENT_TSTAMP}"
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cp "/etc/os-release" "${BUILD_FNAME}"
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VERSION_FNAME="${KDUMP_TMP_FOLDER}/version.${CURRENT_TSTAMP}"
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uname -r > "${VERSION_FNAME}"
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sync "${DMI_FNAME}" "${BUILD_FNAME}" "${VERSION_FNAME}"
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# Create the dump compressed pack.
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LOG_FNAME="kdump-${CURRENT_TSTAMP}.zip"
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LOG_FNAME="${LOGS_FOLDER}/${LOG_FNAME}"
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zip -9 -jq "${LOG_FNAME}" "${KDUMP_TMP_FOLDER}"/* 1>/dev/null
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sync "${LOG_FNAME}" 2>/dev/null
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if [ ! -s "${LOG_FNAME}" ]; then
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logger "kdump: couldn't create the compressed log archive"
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logger "kdump: check folder \"${KDUMP_TMP_FOLDER}\" for logs"
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else
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logger "kdump: logs saved in \"${LOGS_FOLDER}\""
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fi
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fi
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rm -rf "${KDUMP_TMP_FOLDER}"
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