SWWDOG(4) | NetBSD Kernel Interfaces Manual | SWWDOG(4) |
The default period of swwdog is 60 seconds.
As with other watchdog timers, the swwdog driver prevents a system from suspending when the watchdog is armed.
Kernel tickle mode is useless with swwdog and arguably should be rejected, since both it and this driver rely on the same callout mechanism; if one is blocked, almost certainly the other is as well.
The alarm option to wdogctl(8) isn't implemented.
June 8, 2011 | NetBSD 5.99 |