52 lines
1.4 KiB
Bash
52 lines
1.4 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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# Kdump script that should effectively collect the core dump/dmesg from
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# within a Dracut-generated initramfs on SteamOS kdump.
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# The most fail-prone operations are guarded with conditionals to bail
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# in case we indeed fail - worst thing here would be to have a bad condition
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# and get stuck in this minimal initramfs with no output for the user.
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#
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. /usr/lib/kdump/kdump.conf
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VMCORE="/proc/vmcore"
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KDUMP_TIMESTAMP=$(date -u +"%Y%m%d%H%M")
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KDUMP_FOLDER="/kdump_path/${KDUMP_FOLDER}/crash/${KDUMP_TIMESTAMP}"
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# Bail out in case we don't have a vmcore, i.e. either we're not kdumping
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# or something is pretty wrong and we wouldn't be able to progress.
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#
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if [ ! -f $VMCORE ]; then
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reboot -f
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fi
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DEVN="$(cat /usr/lib/kdump/kdump.devnode)"
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mkdir -p "/kdump_path"
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if ! mount "${DEVN}" /kdump_path; then
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reboot -f
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fi
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mkdir -p "${KDUMP_FOLDER}"
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# we want to split on spaces, it's a set of parameters!
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# shellcheck disable=SC2086
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/usr/bin/makedumpfile ${MAKEDUMPFILE_DMESG_CMD} $VMCORE "${KDUMP_FOLDER}/dmesg.txt"
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sync "${KDUMP_FOLDER}/dmesg.txt"
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if [ "${FULL_COREDUMP}" -ne 0 ]; then
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# shellcheck disable=SC2086
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/usr/bin/makedumpfile ${MAKEDUMPFILE_COREDUMP_CMD} $VMCORE "${KDUMP_FOLDER}/vmcore.compressed"
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sync "${KDUMP_FOLDER}/vmcore.compressed"
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fi
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umount "${DEVN}"
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sync
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reboot -f
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