I have encountered a symptom that I could not use hpwdt with hp-asrd on BL460c Gen8 + RHEL6.4. How to reproduce (1) Start hp-asrd with ASR timeout as 600 seconds (2) Load hpwdt with soft_margin as 30 seconds. (3) # echo 1 > /dev/watchdog and wait 30 sec to reboot. Actual Result No reboot happen. (4) Stop hp-asrd (5) # echo 1 > /dev/watchdog and wait 30sec to reboot Actual Result Reboot after 30 sec. And my colleague wrote a small tool to send an ioctl to /dev/watchdog to get WDIOC_GETTIMELEFT. (6) Run a tool to monitor time left. (7) # echo 1 > /dev/watchdog (8) Before 30sec timeout expire, start hp-asrd . Result time left=22 time left=20 time left=19 time left=19 time left=18 time left=17 time left=16 time left=14 time left=13 time left=13 time left=12 time left=599 <= The time when hp-asrd started time left=599 time left=599 time left=599 So this is the reason why hp-asrd and hpwdt update the same timer. So I conclude they can not run simultaneously. Masanari -- To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
