diff options
| -rw-r--r-- | modules.d/slx-watchdog/data/slx-nowayout.conf | 52 | ||||
| -rwxr-xr-x | modules.d/slx-watchdog/hooks/s3-watchdog.sh | 37 | ||||
| -rwxr-xr-x | modules.d/slx-watchdog/module-setup.sh | 16 |
3 files changed, 105 insertions, 0 deletions
diff --git a/modules.d/slx-watchdog/data/slx-nowayout.conf b/modules.d/slx-watchdog/data/slx-nowayout.conf new file mode 100644 index 00000000..200c663c --- /dev/null +++ b/modules.d/slx-watchdog/data/slx-nowayout.conf @@ -0,0 +1,52 @@ +options acquirewdt nowayout=1 +options advantechwdt nowayout=1 +options alim1535_wdt nowayout=1 +options alim7101_wdt nowayout=1 +options cadence_wdt nowayout=1 +options da9055_wdt nowayout=1 +options dw_wdt nowayout=1 +options ebc-c384_wdt nowayout=1 +options eurotechwdt nowayout=1 +options exar_wdt nowayout=1 +options f71808e_wdt nowayout=1 +options hpwdt nowayout=1 +options i6300esb nowayout=1 +options ib700wdt nowayout=1 +options ibmasr nowayout=1 +options ie6xx_wdt nowayout=1 +options it8712f_wdt nowayout=1 +options it87_wdt nowayout=1 +options iTCO_wdt nowayout=1 +options kempld_wdt nowayout=1 +options machzwd nowayout=1 +options max63xx_wdt nowayout=1 +options mena21_wdt nowayout=1 +options menf21bmc_wdt nowayout=1 +options menz69_wdt nowayout=1 +options ni903x_wdt nowayout=1 +options nic7018_wdt nowayout=1 +options nv_tco nowayout=1 +options pc87413_wdt nowayout=1 +options pcwd_pci nowayout=1 +options pcwd_usb nowayout=1 +options sbc60xxwdt nowayout=1 +options sbc_epx_c3 nowayout=1 +options sbc_fitpc2_wdt nowayout=1 +options sc1200wdt nowayout=1 +options sch311x_wdt nowayout=1 +options simatic-ipc-wdt nowayout=1 +options smsc37b787_wdt nowayout=1 +options softdog nowayout=1 +options sp5100_tco nowayout=1 +options twl4030_wdt nowayout=1 +options via_wdt nowayout=1 +options w83627hf_wdt nowayout=1 +options w83877f_wdt nowayout=1 +options w83977f_wdt nowayout=1 +options wafer5823wdt nowayout=1 +options wdat_wdt nowayout=1 +options wdt_pci nowayout=1 +options wm831x_wdt nowayout=1 +options wm8350_wdt nowayout=1 +options xen_wdt nowayout=1 +options ziirave_wdt nowayout=1 diff --git a/modules.d/slx-watchdog/hooks/s3-watchdog.sh b/modules.d/slx-watchdog/hooks/s3-watchdog.sh new file mode 100755 index 00000000..ae0a0e0c --- /dev/null +++ b/modules.d/slx-watchdog/hooks/s3-watchdog.sh @@ -0,0 +1,37 @@ +#!/bin/ash + +find_watchdog() { + dev= + for dir in /sys/class/watchdog/*; do + [ -f "$dir/identity" ] || continue + t=$( cat "$dir/identity" ) + # iamt can go nuts after entering/leaving standby a couple times + # https://github.com/systemd/systemd/issues/35405 + [ "$t" = "iamt_wdt" ] && continue + # Not properly enabled in some BIOSes, i.e. does nothing when it fires + # https://community.intel.com/t5/Processors/Using-linux-iTCO-wdt-driver-on-i3-7100/m-p/1126815 + # https://archive.is/YuHcc + [ "$t" = "iTCO_wdt" ] && continue + # First one not known to suck is fine + dev="${dir##*/}" + break + done +} + +find_watchdog +if [ -z "$dev" ]; then + modprobe softdog + find_watchdog +fi + +if [ -z "$dev" ]; then + echo "No suitable watchdog found, systemd will pick default" +else + echo "Selected watchdog $dev, identity '$( cat "/sys/class/watchdog/$dev/identity" )'" + { + echo "[Manager]" + echo "WatchdogDevice=/dev/$dev" + } > "${NEWROOT}/etc/systemd/system.conf.d/10-watchdog-dev.conf" +fi + +true diff --git a/modules.d/slx-watchdog/module-setup.sh b/modules.d/slx-watchdog/module-setup.sh new file mode 100755 index 00000000..80587b0c --- /dev/null +++ b/modules.d/slx-watchdog/module-setup.sh @@ -0,0 +1,16 @@ +#!/bin/bash +check() { + # Tell dracut that this module should only be included if it is required + # explicitly. + return 255 +} +depends() { + : +} +install() { + slx_service "s3-watchdog" "Pick preferred watchdog device for systemd" \ + --after "initrd-root-fs.target" \ + --requires "initrd-root-fs.target" + # Try to enforce nowayout for all watchdogs + inst_simple "$moddir/data/slx-nowayout.conf" "/etc/modprobe.d/slx-nowayout.conf" +} |