Simone
d1b48b2b16
pre-poweroff-load.sh runs the same mixed, deterministic workload before every poweroff, so each observation carries identical bus exposure in both the use_ecam=1 phase and the use_ecam=0 counter-proof. It records one line per run (use_ecam, srcversion, blocks, warns, spd_ok) and keeps the full per-run output beside it, then powers the machine off by itself. Two runs of 2026-08-09 are included: without them the log is a claim.
155 lines
5.2 KiB
Bash
Executable File
155 lines
5.2 KiB
Bash
Executable File
#!/bin/bash
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# pre-poweroff-load.sh - fixed SMBus load protocol for the A5 hang observation
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# window (TODO.md E1), fully automatic: runs the load, saves observations,
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# powers the machine off.
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#
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# Mixed, deterministic workload so that every poweroff in the window carries
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# the same, high and *diverse* bus exposure - both in the use_ecam=1 phase and
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# in the use_ecam=0 counter-proof phase. Each 3-minute block:
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#
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# 1. software effect (~2760 SMBus writes/s, steady stream) ~100 s
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# 2. rapid hw/sw switch burst (6 alternations back-to-back:
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# one-shot config-write bursts + apply latches) ~20 s
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# 3. hardware effect (engine-side, bus quiet) ~30 s
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# 4. full SPD dump of all 4 DIMMs via ee1004 (reads +
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# page-selects) + serial integrity check ~30 s
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#
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# Effects rotate through fixed lists, so run N of phase A and run N of phase B
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# execute the identical sequence.
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#
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# End of run: kernel-journal warnings and run context are saved to a per-run
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# file in tools/pre-poweroff-runs/, one summary line is appended to
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# pre-poweroff-load.log, and - only with --poweroff - the machine POWERS OFF
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# (15 s grace, Ctrl-C to abort). The last software effect is left running into
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# the poweroff on purpose: exposure should cover the shutdown path too; the
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# systemd boot scene restores the normal LED state at next boot.
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#
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# The one exception: an SPD serial mismatch saves everything and does NOT
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# power off - investigate before shutting down.
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#
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# Usage: sudo ./pre-poweroff-load.sh [minutes] [--poweroff]
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# (default 30 minutes, in 3-min blocks; re-execs itself under sudo if
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# started as a plain user; powers off at the end ONLY with --poweroff)
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set -eu
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[ "$(id -u)" -eq 0 ] || exec sudo "$0" "$@"
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MINUTES=30
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POWEROFF=0
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for arg in "$@"; do
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case "$arg" in
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--poweroff) POWEROFF=1 ;;
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*) MINUTES="$arg" ;;
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esac
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done
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BLOCKS=$(((MINUTES + 2) / 3))
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DIR="$(cd "$(dirname "$0")" && pwd)"
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LOG="$DIR/pre-poweroff-load.log"
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RUNDIR="$DIR/pre-poweroff-runs"
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START="$(date '+%Y-%m-%d %H:%M:%S')"
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RUNFILE="$RUNDIR/$(date '+%Y%m%d-%H%M').log"
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ANIMS=(aurora wave_rainbow plasma ripple gradient_pulse fire)
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FX=(respiro arcobaleno cometa battito ciclico lampeggio)
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# SPD EEPROMs at 0x50/0x52 (ee1004); i2c bus numbers depend on module load
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# order, so discover them instead of hardcoding bus IDs.
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mapfile -t EEPROMS < <(ls /sys/bus/i2c/devices/*-005[02]/eeprom 2>/dev/null | sort)
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[ "${#EEPROMS[@]}" -eq 4 ] || { echo "ERROR: expected 4 SPD EEPROMs, found ${#EEPROMS[@]}"; exit 1; }
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MODE="$(cat /sys/module/i2c_imc_skylake/parameters/use_ecam 2>/dev/null || echo '?')"
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SRCV="$(cat /sys/module/i2c_imc_skylake/srcversion 2>/dev/null || echo '?')"
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mkdir -p "$RUNDIR"
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spd_serials() {
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local e
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for e in "${EEPROMS[@]}"; do
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dd if="$e" bs=1 skip=325 count=4 2>/dev/null | xxd -p
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done
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}
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echo "== pre-poweroff load: ${BLOCKS} blocks (~$((BLOCKS * 3)) min), use_ecam=${MODE}, srcversion=${SRCV}"
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if [ "$POWEROFF" -eq 1 ]; then
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echo "== POWERS OFF at the end. Run file: ${RUNFILE}"
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else
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echo "== no poweroff at the end (use --poweroff). Run file: ${RUNFILE}"
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fi
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REF_SERIALS="$(spd_serials)"
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echo "== SPD serial reference: $(echo "$REF_SERIALS" | tr '\n' ' ')"
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SPD_BAD=0
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for ((b = 0; b < BLOCKS; b++)); do
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anim="${ANIMS[b % ${#ANIMS[@]}]}"
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fx="${FX[b % ${#FX[@]}]}"
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echo "-- block $((b + 1))/${BLOCKS}: anim=${anim} fx=${fx}"
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furyrs anim "$anim"
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sleep 100
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# rapid hw/sw alternation burst
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for ((i = 0; i < 3; i++)); do
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furyrs effect "${FX[(b + i) % ${#FX[@]}]}"
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sleep 2
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furyrs anim "${ANIMS[(b + i) % ${#ANIMS[@]}]}"
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sleep 2
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done
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furyrs effect "$fx"
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sleep 30
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# full SPD dump (reads + ee1004 page-selects) + integrity check
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for e in "${EEPROMS[@]}"; do
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dd if="$e" bs=64 2>/dev/null >/dev/null
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done
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if [ "$(spd_serials)" != "$REF_SERIALS" ]; then
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SPD_BAD=1
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echo "!! SPD SERIAL MISMATCH in block $((b + 1)) - stopping, will NOT power off"
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break
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fi
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done
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# leave a steady software effect running into the poweroff
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furyrs anim "${ANIMS[0]}"
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# Only warning-and-up: the dev_dbg per-transfer traffic is not an anomaly.
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WARNS="$(journalctl -k -p warning --since "$START" --no-pager 2>/dev/null | grep -i 'i2c-imc' || true)"
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N="$(printf '%s' "$WARNS" | grep -c . || true)"
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{
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echo "start: ${START}"
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echo "end: $(date '+%Y-%m-%d %H:%M:%S')"
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echo "use_ecam: ${MODE}"
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echo "srcversion: ${SRCV}"
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echo "blocks: ${BLOCKS}"
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echo "spd_ok: $((1 - SPD_BAD))"
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echo "spd_serials_ref:"
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echo "$REF_SERIALS"
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echo "driver_warnings: ${N}"
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[ "$N" -gt 0 ] && echo "$WARNS"
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} >"$RUNFILE"
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echo "$(date '+%Y-%m-%d %H:%M') use_ecam=${MODE} srcversion=${SRCV} blocks=${BLOCKS} warns=${N} spd_ok=$((1 - SPD_BAD))" >>"$LOG"
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[ -n "${SUDO_UID:-}" ] && chown "$SUDO_UID:${SUDO_GID:-$SUDO_UID}" "$RUNFILE" "$LOG" "$RUNDIR"
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sync
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if [ "$SPD_BAD" -ne 0 ]; then
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echo "== SPD integrity FAILED - observations in ${RUNFILE} - NOT powering off."
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exit 1
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fi
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if [ "$N" -gt 0 ]; then
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echo "== ${N} driver warning(s) - SIGNAL, saved in ${RUNFILE}:"
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echo "$WARNS"
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else
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echo "== clean run, no driver warnings."
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fi
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if [ "$POWEROFF" -eq 1 ]; then
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echo "== powering off in 15 s (Ctrl-C to abort) ..."
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sleep 15
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systemctl poweroff
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else
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echo "== done, NOT powering off (pass --poweroff to shut down at the end)."
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fi
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