The watchdog must not time out while Linux is suspended.
Therefore, the diag288 watchdog device driver prevents Linux from being suspended
while the watchdog is in use.
User response
i) Stop the watchdog application. ii) If the problem persists, close the watchdog
device node by issuing 'echo V > /dev/watchdog'.
iii) If the device driver still prevents Linux from being suspended,
contact your support organization.