[Pacemaker] about iTCO_wdt watchdog

[Mia Lueng]

Hi All:
   I use IBM 3650 to build a HA cluster. And set iTCO_wdt as the
watchdog. The following test is performed
1. modprobe iTCO_wdt heartbeat=60 nowayout=1
2. echo "1" >/dev/watchdog
   system will reboot after 60s

   But when I run command    echo "c" >/proc/sysrq-trigger  after
echo "1" >/dev/watchdog.   System will crash but can not reboot.

   As I know, iTCO_wdt is a hardware driver, system will be reboot if
no data is writter in 60 seconds even when system crash.    What's
wrong here?