4ce9e03773
Source-Sha: df779aa3e2cdb4774c0012b2f4f44791307634c6 Policy-Sha: 4c7fb444a162068e847747dd5a03c057631225e8eb05e44d0e358eae6c4e4266 Tree-Digest: 1c9cc7ba9fa0cdc70bcfa82d4eda9a4dbec0a391b9106858d0f69b944ac7cdb7
80 lines
3 KiB
Shell
80 lines
3 KiB
Shell
#!/usr/bin/env bash
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set -euo pipefail
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baseline=/lib/modules/7.1.4-100.fc43.x86_64/updates/snd-hda-intel.ko
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candidate=/lib/modules/hp27-experiment-L-wkJWVQET/snd-hda-intel.ko
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expected=d7683f3e64a65614b53dd658343e6e80bfe76a5efd268cc87fbc2e69b7ba6115
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audio_uid=$(id -u TARGET_USER)
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removed=0
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userctl() { runuser -u TARGET_USER -- env XDG_RUNTIME_DIR="/run/user/$audio_uid" systemctl --user "$@"; }
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services=(pipewire.service pipewire.socket wireplumber.service pipewire-pulse.service pipewire-pulse.socket)
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snapshot() {
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date --iso-8601=seconds
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od -An -tx1 /sys/module/snd_hda_intel/notes/.note.gnu.build-id
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cat /proc/asound/cards /proc/asound/pcm
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for codec in /proc/asound/card*/codec*; do
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if test -f "$codec"; then head -n 6 "$codec"; fi
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done
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cat /sys/bus/pci/devices/0000:00:1f.3/power/control
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}
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unload_controller() { if test -e /sys/bus/pci/drivers/snd_hda_intel/0000:00:1f.3; then printf "%s" 0000:00:1f.3 > /sys/bus/pci/drivers/snd_hda_intel/unbind; fi; rmmod snd_hda_intel; }
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recover() {
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result=$?
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trap - EXIT HUP INT TERM
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set +e
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if test "$removed" = 0; then
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systemctl start alsa-state.service
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userctl start "${services[@]}"
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echo 'K was not unloaded; audio services restored'
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exit "$result"
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fi
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echo 'Restoring verified K module'
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if test -d /sys/module/snd_hda_intel; then
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if ! unload_controller; then
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echo 'RECOVERY FAILED: driver still in use'
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systemctl start alsa-state.service
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userctl start "${services[@]}"
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exit 90
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fi
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fi
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if ! modprobe snd_hda_intel; then
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echo 'RECOVERY FAILED: K could not load'
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systemctl start alsa-state.service
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userctl start "${services[@]}"
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exit 91
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fi
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sleep 5
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snapshot
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systemctl start alsa-state.service
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userctl start "${services[@]}"
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if ! grep -q 'Codec: Conexant CX20753/4' /proc/asound/card*/codec\#0; then
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echo 'RECOVERY FAILED: Conexant absent'
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exit 92
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fi
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echo 'K restored; Conexant enumerated; audio services restarted'
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exit "$result"
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}
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test "$(id -u)" = 0
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test "$(uname -r)" = 7.1.4-100.fc43.x86_64
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test "$(cat /sys/bus/pci/devices/0000:00:1f.3/vendor)" = 0x8086
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test "$(cat /sys/bus/pci/devices/0000:00:1f.3/device)" = 0xa170
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test "$(cat /sys/bus/pci/devices/0000:00:1f.3/subsystem_vendor)" = 0x103c
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test "$(cat /sys/bus/pci/devices/0000:00:1f.3/subsystem_device)" = 0x2b3e
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test "$(sha256sum "$baseline" | cut -d ' ' -f 1)" = "$expected"
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test "$(sha256sum /lib/modules/7.1.4-100.fc43.x86_64/updates/snd-hda-intel.ko | cut -d ' ' -f 1)" = "$expected"
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test -s "$candidate"
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test "$(modinfo -F vermagic "$candidate")" = "$(modinfo -F vermagic "$baseline")"
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echo 'Baseline before test'
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snapshot
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trap recover EXIT
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trap 'exit 129' HUP
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trap 'exit 130' INT
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trap 'exit 143' TERM
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userctl stop "${services[@]}"
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systemctl stop alsa-state.service
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unload_controller
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removed=1
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echo 'Loading L standard-reset experiment'
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insmod "$candidate"
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sleep 8
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snapshot
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journalctl -b -k --since '-1 minute' --no-pager
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