184217373b
This is somewhat an intrusive change, but necessary if we want to upstream the kdump tooling while allowing great extent of customizations on SteamOS. With this change, we have now a kdump.d folder on /usr/share, that holds configuration files in the same way sysctl.d does. In other words, we can easily override default settings by just having more configuration files, which are sourced following natural name sorting, i.e., we have now the concept of config file precedence in kdump. Our default config file is called 00-default, so we eventually might have a 01-steamos e.g., with Deck's custom settings. This is planned to other package though. Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
147 lines
4.2 KiB
Bash
147 lines
4.2 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 [ ${HAVE_CFG_FILES} -eq 0 ]; then
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logger "kdump: no config files in /usr/share/kdump.d/ - aborting."
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exit 1
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fi
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KDUMP_MAIN_FOLDER="$(cat "${KDUMP_MNT}")"
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rm -f "${KDUMP_MNT}"
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if [ ! -d "${KDUMP_MAIN_FOLDER}" ]; then
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logger "kdump: invalid folder (${KDUMP_MAIN_FOLDER}) - aborting..."
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exit 0
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fi
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LOGS_FOUND=0
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KDUMP_TMP_FOLDER="${KDUMP_MAIN_FOLDER}/.tmp"
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# Use UTC timezone to match kdump collection
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CURRENT_TSTAMP=$(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 "${PSTORE_FOLDER}"
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fi
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# Now, we proceed the same way if there are kdump data.
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KDUMP_CRASH_FOLDER="${KDUMP_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 "${KD_FOLDER}"
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fi
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# If we have pstore and/or kdump logs, let's process them...
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KDUMP_LOGS_FOLDER="${KDUMP_MAIN_FOLDER}/logs"
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if [ ${LOGS_FOUND} -ne 0 ]; then
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mkdir -p "${KDUMP_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-${CURRENT_TSTAMP}.zip"
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LOG_FNAME="${KDUMP_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 \"${KDUMP_LOGS_FOLDER}\""
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fi
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fi
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rm -rf "${KDUMP_TMP_FOLDER}"
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