When watchdog is enabled in 1st kernel, then crash dump in kdump
kernel will be interrupted if watchdog is timeout. Since some
wdt drivers can stop the watchdog when its driver is loaded,
e.g iTCO_wdt, this can benefit crash dump.
Add watchdog driver which is active in system to initramfs, its
loading can stop watchdog.
---
modules.d/04watchdog/module-setup.sh | 37 +++++++++++++++++++++++-------------
1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/modules.d/04watchdog/module-setup.sh b/modules.d/04watchdog/module-setup.sh
index 44dce61..51d454b 100755
--- a/modules.d/04watchdog/module-setup.sh
+++ b/modules.d/04watchdog/module-setup.sh
@@ -14,18 +14,29 @@ depends() {
# called by dracut
install() {
- inst_hook cmdline 00 "$moddir/watchdog.sh"
- inst_hook cmdline 50 "$moddir/watchdog.sh"
- inst_hook pre-trigger 00 "$moddir/watchdog.sh"
- inst_hook initqueue 00 "$moddir/watchdog.sh"
- inst_hook mount 00 "$moddir/watchdog.sh"
- inst_hook mount 50 "$moddir/watchdog.sh"
- inst_hook mount 99 "$moddir/watchdog.sh"
- inst_hook pre-pivot 00 "$moddir/watchdog.sh"
- inst_hook pre-pivot 99 "$moddir/watchdog.sh"
- inst_hook cleanup 00 "$moddir/watchdog.sh"
- inst_hook cleanup 99 "$moddir/watchdog.sh"
- inst_hook emergency 02 "$moddir/watchdog-stop.sh"
- inst_multiple -o wdctl
+ if [[$testonly = "yes" ]]; then
+ inst_hook cmdline 00 "$moddir/watchdog.sh"
+ inst_hook cmdline 50 "$moddir/watchdog.sh"
+ inst_hook pre-trigger 00 "$moddir/watchdog.sh"
+ inst_hook initqueue 00 "$moddir/watchdog.sh"
+ inst_hook mount 00 "$moddir/watchdog.sh"
+ inst_hook mount 50 "$moddir/watchdog.sh"
+ inst_hook mount 99 "$moddir/watchdog.sh"
+ inst_hook pre-pivot 00 "$moddir/watchdog.sh"
+ inst_hook pre-pivot 99 "$moddir/watchdog.sh"
+ inst_hook cleanup 00 "$moddir/watchdog.sh"
+ inst_hook cleanup 99 "$moddir/watchdog.sh"
+ inst_hook emergency 02 "$moddir/watchdog-stop.sh"
+ inst_multiple -o wdctl
+ fi
}
+installkernel() {
+ if [[$testonly = "no" ]]; then
+ wdt=$(lsmod|cut -f1 -d' '|grep "wdt$")
+ if [ -n "$wdt" ]; then
+ instmods $wdt
+ [ "$wdt" = "iTCO_wdt" ] && instmods lpc_ich
+ fi
+ fi
+}
--
1.8.3.1
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