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https://github.com/morgan9e/systemd
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test: add a couple of tests for systemd-pstore
This commit is contained in:
Frantisek Sumsal
221
test/units/testsuite-74.pstore.sh
Executable file
221
test/units/testsuite-74.pstore.sh
Executable file
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#!/usr/bin/env bash
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# SPDX-License-Identifier: LGPL-2.1-or-later
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set -eux
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set -o pipefail
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systemctl log-level info
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if systemd-detect-virt -cq; then
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echo "Running in a container, skipping the systemd-pstore test..."
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exit 0
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fi
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DUMMY_DMESG_1="$(mktemp)"
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cat >"$DUMMY_DMESG_1" <<\EOF
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6,17159,5340096332127,-;usb 1-4: USB disconnect, device number 124
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6,17160,5340109662397,-;input: WH-1000XM3 (AVRCP) as /devices/virtual/input/input293
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6,17161,5343126458360,-;loop0: detected capacity change from 0 to 3145728
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6,17162,5343126766065,-; loop0: p1 p2
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6,17163,5343126815038,-;EXT4-fs (loop0p1): mounted filesystem with ordered data mode. Quota mode: none.
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6,17164,5343158037334,-;EXT4-fs (loop0p1): unmounting filesystem.
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6,17165,5343158072598,-;loop0: detected capacity change from 0 to 3145728
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6,17166,5343158073563,-; loop0: p1 p2
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6,17167,5343158074325,-; loop0: p1 p2
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6,17168,5343158140859,-;EXT4-fs (loop0p1): mounted filesystem with ordered data mode. Quota mode: none.
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6,17169,5343158182977,-;EXT4-fs (loop0p1): unmounting filesystem.
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6,17170,5343158700241,-;loop0: detected capacity change from 0 to 3145728
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6,17171,5343158700439,-; loop0: p1 p2
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6,17172,5343158701120,-; loop0: p1 p2
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EOF
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DUMMY_DMESG_2="$(mktemp)"
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cat >"$DUMMY_DMESG_2" <<\EOF
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Nechť již hříšné saxofony ďáblů rozezvučí síň úděsnými tóny waltzu, tanga a quickstepu.
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Příliš žluťoučký kůň úpěl ďábelské ódy.
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Zvlášť zákeřný učeň s ďolíčky běží podél zóny úlů.
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Vyciď křišťálový nůž, ó učiň úděsné líbivým!
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Loď čeří kýlem tůň obzvlášť v Grónské úžině
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Ó, náhlý déšť již zvířil prach a čilá laň teď běží s houfcem gazel k úkrytům.
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Vypätá dcéra grófa Maxwella s IQ nižším ako kôň núti čeľaď hrýzť hŕbu jabĺk.
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Kŕdeľ šťastných ďatľov učí pri ústí Váhu mĺkveho koňa obhrýzať kôru a žrať čerstvé mäso.
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Stróż pchnął kość w quiz gędźb vel fax myjń.
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Portez ce vieux whisky au juge blond qui fume!
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EOF
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file_count() { find "${1:?}" -type f | wc -l; }
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file_size() { wc -l <"${1:?}"; }
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random_efi_timestamp() { printf "%0.10d" "$((1000000000 + RANDOM))"; }
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# The dmesg- filename contains the backend-type and the Common Platform Error Record, CPER,
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# record id, a 64-bit number.
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#
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# Files are processed in reverse lexigraphical order so as to properly reconstruct original dmesg.
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prepare_efi_logs() {
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local file="${1:?}"
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local timestamp="${2:?}"
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local chunk count filename
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# For the EFI backend, the 3 least significant digits of record id encodes a
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# "count" number, the next 2 least significant digits for the dmesg part
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# (chunk) number, and the remaining digits as the timestamp. See
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# linux/drivers/firmware/efi/efi-pstore.c in efi_pstore_write().
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count="$(file_size "$file")"
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chunk=0
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# The sed in the process substitution below just reverses the file
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while read -r line; do
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filename="$(printf "dmesg-efi-%0.10d%0.2d%0.3d" "$timestamp" "$chunk" "$count")"
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echo "$line" >"/sys/fs/pstore/$filename"
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chunk=$((chunk + 1))
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done < <(sed '1!G;h;$!d' "$file")
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if [[ "$chunk" -eq 0 ]]; then
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echo >&2 "No dmesg-efi files were created"
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exit 1
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fi
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}
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prepare_erst_logs() {
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local file="${1:?}"
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local start_id="${2:?}"
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local id filename
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# For the ERST backend, the record is a monotonically increasing number, seeded as
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# a timestamp. See linux/drivers/acpi/apei/erst.c in erst_writer().
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id="$start_id"
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# The sed in the process substitution below just reverses the file
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while read -r line; do
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filename="$(printf "dmesg-erst-%0.16d" "$id")"
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echo "$line" >"/sys/fs/pstore/$filename"
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id=$((id + 1))
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done < <(sed '1!G;h;$!d' "$file")
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if [[ "$id" -eq "$start_id" ]]; then
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echo >&2 "No dmesg-erst files were created"
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exit 1
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fi
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# ID of the last dmesg file will be the ID of the erst subfolder
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echo "$((id - 1))"
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}
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prepare_pstore_config() {
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local storage="${1:?}"
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local unlink="${2:?}"
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systemctl stop systemd-pstore
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rm -fr /sys/fs/pstore/* /var/lib/systemd/pstore/*
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mkdir -p /run/systemd/pstore.conf.d
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cat >"/run/systemd/pstore.conf.d/99-test.conf" <<EOF
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[PStore]
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Storage=$storage
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Unlink=$unlink
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EOF
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systemd-analyze cat-config systemd/pstore.conf | grep "$storage"
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systemd-analyze cat-config systemd/pstore.conf | grep "$unlink"
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}
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start_pstore() {
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rm -f /tmp/journal.cursor
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journalctl -q -n 0 --cursor-file=/tmp/journal.cursor
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systemctl start systemd-pstore
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journalctl --sync
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}
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# To avoid having to depend on the VM providing the pstore, let's simulate
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# it using a simple bind mount
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PSTORE_DIR="$(mktemp -d)"
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mount --bind "${PSTORE_DIR:?}" "/sys/fs/pstore"
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# systemd-pstore is a no-op with Storage=none
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for unlink in yes no; do
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: "Backend: N/A; Storage: none; Unlink: $unlink"
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timestamp="$(random_efi_timestamp)"
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prepare_pstore_config "none" "$unlink"
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prepare_efi_logs "$DUMMY_DMESG_1" "$timestamp"
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old_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$old_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]]
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: "Backend: EFI; Storage: external; Unlink: $unlink"
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timestamp="$(random_efi_timestamp)"
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prepare_pstore_config "external" "$unlink"
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prepare_efi_logs "$DUMMY_DMESG_1" "$timestamp"
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]]
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# We always log to journal
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diff "$DUMMY_DMESG_1" <(journalctl -o cat -u systemd-pstore --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d")
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filename="$(printf "/var/lib/systemd/pstore/%s/%0.3d/dmesg.txt" "$timestamp" "$(file_size "$DUMMY_DMESG_1")")"
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diff "$DUMMY_DMESG_1" "$filename"
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: "Backend: EFI; Storage: external; Unlink: $unlink; multiple dmesg files"
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timestamp_1="$(random_efi_timestamp)"
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timestamp_2="$((timestamp_1 + 1))"
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prepare_pstore_config "external" "$unlink"
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prepare_efi_logs "$DUMMY_DMESG_1" "$timestamp_1"
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prepare_efi_logs "$DUMMY_DMESG_2" "$timestamp_2"
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# Add one "random" (non-dmesg) file as well
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echo "hello world" >/sys/fs/pstore/foo.bar
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]]
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filename_1="$(printf "/var/lib/systemd/pstore/%s/%0.3d/dmesg.txt" "$timestamp_1" "$(file_size "$DUMMY_DMESG_1")")"
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diff "$DUMMY_DMESG_1" "$filename_1"
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filename_2="$(printf "/var/lib/systemd/pstore/%s/%0.3d/dmesg.txt" "$timestamp_2" "$(file_size "$DUMMY_DMESG_2")")"
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diff "$DUMMY_DMESG_2" "$filename_2"
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grep "hello world" "/var/lib/systemd/pstore/foo.bar"
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: "Backend: EFI; Storage: journal; Unlink: $unlink"
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timestamp="$(random_efi_timestamp)"
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prepare_pstore_config "journal" "$unlink"
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prepare_efi_logs "$DUMMY_DMESG_1" "$timestamp"
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]]
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diff "$DUMMY_DMESG_1" <(journalctl -o cat -u systemd-pstore --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d")
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: "Backend: ERST; Storage: external; Unlink: $unlink"
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prepare_pstore_config "external" "$unlink"
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last_id="$(prepare_erst_logs "$DUMMY_DMESG_1" 0)"
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]]
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# We always log to journal
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diff "$DUMMY_DMESG_1" <(journalctl -o cat -u systemd-pstore --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d")
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filename="$(printf "/var/lib/systemd/pstore/%0.16d/dmesg.txt" "$last_id")"
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diff "$DUMMY_DMESG_1" "$filename"
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: "Backend: ERST; Storage: external; Unlink: $unlink; multiple dmesg files"
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prepare_pstore_config "external" "$unlink"
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last_id_1="$(prepare_erst_logs "$DUMMY_DMESG_1" 0)"
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last_id_2="$(prepare_erst_logs "$DUMMY_DMESG_2" "$((last_id_1 + 10))")"
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# Add one "random" (non-dmesg) file as well
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echo "hello world" >/sys/fs/pstore/foo.bar
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]]
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filename_1="$(printf "/var/lib/systemd/pstore/%0.16d/dmesg.txt" "$last_id_1")"
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diff "$DUMMY_DMESG_1" "$filename_1"
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filename_2="$(printf "/var/lib/systemd/pstore/%0.16d/dmesg.txt" "$last_id_2")"
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diff "$DUMMY_DMESG_2" "$filename_2"
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grep "hello world" "/var/lib/systemd/pstore/foo.bar"
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: "Backend: ERST; Storage: journal; Unlink: $unlink"
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prepare_pstore_config "journal" "$unlink"
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last_id="$(prepare_erst_logs "$DUMMY_DMESG_1" 0)"
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[[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)"
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start_pstore
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[[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]]
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[[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]]
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diff "$DUMMY_DMESG_1" <(journalctl -o cat -u systemd-pstore --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d")
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done
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