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insert wdt kernel modules when watchdog is active

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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.

For now, put this adding in 99kdumpbase.

Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
This commit is contained in:
Baoquan He 2014-01-23 14:09:46 +08:00 committed by WANG Chao
parent 7c65f40916
commit 1060846036
1 changed files with 8 additions and 0 deletions
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8
dracut-module-setup.sh
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@ -485,3 +485,11 @@ install() {
# at some point of time. # at some point of time.
kdump_check_iscsi_targets kdump_check_iscsi_targets
} }
installkernel() {
wdt=$(lsmod|cut -f1 -d' '|grep "wdt$")
if [ -n "$wdt" ]; then
instmods $wdt
[ "$wdt" = "iTCO_wdt" ] && instmods lpc_ich
fi
}