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Diffstat (limited to 'test/units/TEST-74-AUX-UTILS.pstore.sh')
| -rwxr-xr-x | test/units/TEST-74-AUX-UTILS.pstore.sh | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/test/units/TEST-74-AUX-UTILS.pstore.sh b/test/units/TEST-74-AUX-UTILS.pstore.sh new file mode 100755 index 0000000..9be8066 --- /dev/null +++ b/test/units/TEST-74-AUX-UTILS.pstore.sh @@ -0,0 +1,258 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: LGPL-2.1-or-later +set -eux +set -o pipefail + +systemctl log-level info + +if systemd-detect-virt -cq; then + echo "Running in a container, skipping the systemd-pstore test..." + exit 0 +fi + +DUMMY_DMESG_0="$(mktemp)" +cat >"$DUMMY_DMESG_0" <<\EOF +6,17159,5340096332127,-;usb 1-4: USB disconnect, device number 124 +6,17160,5340109662397,-;input: WH-1000XM3 (AVRCP) as /devices/virtual/input/input293 +6,17161,5343126458360,-;loop0: detected capacity change from 0 to 3145728 +6,17162,5343126766065,-; loop0: p1 p2 +6,17163,5343126815038,-;EXT4-fs (loop0p1): mounted filesystem with ordered data mode. Quota mode: none. +6,17164,5343158037334,-;EXT4-fs (loop0p1): unmounting filesystem. +6,17165,5343158072598,-;loop0: detected capacity change from 0 to 3145728 +6,17166,5343158073563,-; loop0: p1 p2 +6,17167,5343158074325,-; loop0: p1 p2 +6,17168,5343158140859,-;EXT4-fs (loop0p1): mounted filesystem with ordered data mode. Quota mode: none. +6,17169,5343158182977,-;EXT4-fs (loop0p1): unmounting filesystem. +6,17170,5343158700241,-;loop0: detected capacity change from 0 to 3145728 +6,17171,5343158700439,-; loop0: p1 p2 +6,17172,5343158701120,-; loop0: p1 p2 +EOF + +DUMMY_DMESG_1="$(mktemp)" +cat >"$DUMMY_DMESG_1" <<\EOF +Nechť již hříšné saxofony ďáblů rozezvučí síň úděsnými tóny waltzu, tanga a quickstepu. +Příliš žluťoučký kůň úpěl ďábelské ódy. +Zvlášť zákeřný učeň s ďolíčky běží podél zóny úlů. +Vyciď křišťálový nůž, ó učiň úděsné líbivým! +Loď čeří kýlem tůň obzvlášť v Grónské úžině +Ó, náhlý déšť již zvířil prach a čilá laň teď běží s houfcem gazel k úkrytům. +Vypätá dcéra grófa Maxwella s IQ nižším ako kôň núti čeľaď hrýzť hŕbu jabĺk. +Kŕdeľ šťastných ďatľov učí pri ústí Váhu mĺkveho koňa obhrýzať kôru a žrať čerstvé mäso. +Stróż pchnął kość w quiz gędźb vel fax myjń. +Portez ce vieux whisky au juge blond qui fume! +EOF + +file_count() { find "${1:?}" -type f | wc -l; } +file_size() { wc -l <"${1:?}"; } +random_efi_timestamp() { printf "%0.10d" "$((1000000000 + RANDOM))"; } + +# The dmesg- filename contains the backend-type and the Common Platform Error Record, CPER, +# record id, a 64-bit number. +# +# Files are processed in reverse lexigraphical order so as to properly reconstruct original dmesg. + +prepare_efi_logs() { + local file="${1:?}" + local timestamp="${2:?}" + local chunk count filename + + # For the EFI backend, the 3 least significant digits of record id encodes a + # "count" number, the next 2 least significant digits for the dmesg part + # (chunk) number, and the remaining digits as the timestamp. See + # linux/drivers/firmware/efi/efi-pstore.c in efi_pstore_write(). + count="$(file_size "$file")" + chunk=0 + # The sed in the process substitution below just reverses the file + while read -r line; do + filename="$(printf "dmesg-efi-%0.10d%0.2d%0.3d" "$timestamp" "$chunk" "$count")" + echo "$line" >"/sys/fs/pstore/$filename" + chunk=$((chunk + 1)) + done < <(sed '1!G;h;$!d' "$file") + + if [[ "$chunk" -eq 0 ]]; then + echo >&2 "No dmesg-efi files were created" + exit 1 + fi +} + +prepare_erst_logs() { + local file="${1:?}" + local start_id="${2:?}" + local id filename + + # For the ERST backend, the record is a monotonically increasing number, seeded as + # a timestamp. See linux/drivers/acpi/apei/erst.c in erst_writer(). + id="$start_id" + # The sed in the process substitution below just reverses the file + while read -r line; do + filename="$(printf "dmesg-erst-%0.16d" "$id")" + echo "$line" >"/sys/fs/pstore/$filename" + id=$((id + 1)) + done < <(sed '1!G;h;$!d' "$file") + + if [[ "$id" -eq "$start_id" ]]; then + echo >&2 "No dmesg-erst files were created" + exit 1 + fi + + # ID of the last dmesg file will be the ID of the erst subfolder + echo "$((id - 1))" +} + +prepare_pstore_config() { + local storage="${1:?}" + local unlink="${2:?}" + + systemctl stop systemd-pstore + + rm -fr /sys/fs/pstore/* /var/lib/systemd/pstore/* + + mkdir -p /run/systemd/pstore.conf.d + cat >/run/systemd/pstore.conf.d/99-test.conf <<EOF +[PStore] +Storage=$storage +Unlink=$unlink +EOF + + systemd-analyze cat-config systemd/pstore.conf | grep "$storage" + systemd-analyze cat-config systemd/pstore.conf | grep "$unlink" +} + +start_pstore() { + rm -f /tmp/journal.cursor + journalctl -q -n 0 --cursor-file=/tmp/journal.cursor + systemctl restart systemd-pstore + journalctl --sync +} + +at_exit() { + set +e + + mountpoint -q /sys/fs/pstore && umount /sys/fs/pstore + rm -fr /var/lib/systemd/pstore/* + rm -f /run/systemd/system/systemd-pstore.service.d/99-StartLimitInterval.conf + rm -f /run/systemd/pstore.conf.d/99-test.conf +} + +trap at_exit EXIT + +# To avoid having to depend on the VM providing the pstore, let's simulate +# it using a simple bind mount +PSTORE_DIR="$(mktemp -d)" +mount --bind "${PSTORE_DIR:?}" "/sys/fs/pstore" + +# Disable the start limit since we're going to restart the systemd-pstore +# service quite a lot in a short time span +mkdir -p /run/systemd/system/systemd-pstore.service.d +cat >/run/systemd/system/systemd-pstore.service.d/99-StartLimitInterval.conf <<EOF +[Unit] +StartLimitInterval=0 +EOF +systemctl daemon-reload + +# systemd-pstore is a no-op with Storage=none +for unlink in yes no; do + : "Backend: N/A; Storage: none; Unlink: $unlink" + timestamp="$(random_efi_timestamp)" + prepare_pstore_config "none" "$unlink" + prepare_efi_logs "$DUMMY_DMESG_0" "$timestamp" + old_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$old_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]] + + : "Backend: EFI; Storage: external; Unlink: $unlink" + timestamp="$(random_efi_timestamp)" + prepare_pstore_config "external" "$unlink" + prepare_efi_logs "$DUMMY_DMESG_0" "$timestamp" + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]] + # We always log to journal + diff "$DUMMY_DMESG_0" <(journalctl -o cat --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d") + filename="$(printf "/var/lib/systemd/pstore/%s/%0.3d/dmesg.txt" "$timestamp" "$(file_size "$DUMMY_DMESG_0")")" + diff "$DUMMY_DMESG_0" "$filename" + + : "Backend: EFI; Storage: external; Unlink: $unlink; multiple dmesg files" + timestamps=() + timestamp="$(random_efi_timestamp)" + prepare_pstore_config "external" "$unlink" + for i in {0..6}; do + timestamp="$((timestamp + (i * 10)))" + timestamps+=("$timestamp") + # Create a name reference to one of the $DUMMY_DMESG_X variables + dmesg="DUMMY_DMESG_$((i % 2))" + prepare_efi_logs "${!dmesg}" "$timestamp" + # Add one "random" (non-dmesg) file as well + echo "hello world" >/sys/fs/pstore/foo.bar + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]] + filename="$(printf "/var/lib/systemd/pstore/%s/%0.3d/dmesg.txt" "$timestamp" "$(file_size "${!dmesg}")")" + diff "${!dmesg}" "$filename" + grep "hello world" "/var/lib/systemd/pstore/foo.bar" + done + # Check that we kept all previous records as well + for timestamp in "${timestamps[@]}"; do + [[ -d "/var/lib/systemd/pstore/$timestamp" ]] + [[ "$(file_count "/var/lib/systemd/pstore/$timestamp/")" -gt 0 ]] + done + + : "Backend: EFI; Storage: journal; Unlink: $unlink" + timestamp="$(random_efi_timestamp)" + prepare_pstore_config "journal" "$unlink" + prepare_efi_logs "$DUMMY_DMESG_0" "$timestamp" + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]] + diff "$DUMMY_DMESG_0" <(journalctl -o cat --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d") + + : "Backend: ERST; Storage: external; Unlink: $unlink" + prepare_pstore_config "external" "$unlink" + last_id="$(prepare_erst_logs "$DUMMY_DMESG_0" 0)" + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]] + # We always log to journal + diff "$DUMMY_DMESG_0" <(journalctl -o cat --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d") + filename="$(printf "/var/lib/systemd/pstore/%0.16d/dmesg.txt" "$last_id")" + diff "$DUMMY_DMESG_0" "$filename" + + : "Backend: ERST; Storage: external; Unlink: $unlink; multiple dmesg files" + last_ids=() + prepare_pstore_config "external" "$unlink" + for i in {0..9}; do + # Create a name reference to one of the $DUMMY_DMESG_X variables + dmesg="DUMMY_DMESG_$((i % 2))" + last_id="$(prepare_erst_logs "${!dmesg}" "$((i * 100))")" + last_ids+=("$last_id") + # Add one "random" (non-dmesg) file as well + echo "hello world" >/sys/fs/pstore/foo.bar + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -ne 0 ]] + filename="$(printf "/var/lib/systemd/pstore/%0.16d/dmesg.txt" "$last_id")" + diff "${!dmesg}" "$filename" + grep "hello world" "/var/lib/systemd/pstore/foo.bar" + done + # Check that we kept all previous records as well + for last_id in "${last_ids[@]}"; do + directory="$(printf "/var/lib/systemd/pstore/%0.16d" "$last_id")" + [[ -d "$directory" ]] + [[ "$(file_count "$directory")" -gt 0 ]] + done + + : "Backend: ERST; Storage: journal; Unlink: $unlink" + prepare_pstore_config "journal" "$unlink" + last_id="$(prepare_erst_logs "$DUMMY_DMESG_0" 0)" + [[ "$unlink" == yes ]] && exp_count=0 || exp_count="$(file_count /sys/fs/pstore/)" + start_pstore + [[ "$(file_count /sys/fs/pstore)" -ge "$exp_count" ]] + [[ "$(file_count /var/lib/systemd/pstore/)" -eq 0 ]] + diff "$DUMMY_DMESG_0" <(journalctl -o cat --output-fields=FILE --cursor-file=/tmp/journal.cursor | sed "/^$/d") +done |