| Table of Contents |
|---|
| minLevel | 1 |
|---|
| maxLevel | 6 |
|---|
| outline | false |
|---|
| style | none |
|---|
| type | list |
|---|
| printable | false |
|---|
|
General
| Excerpt |
|---|
|
A proxy watchdog daemon to monitor heartbeats of registered services and take appropriate actions in case of emergency |
A system can become unresponsive for many unforeseen reasons in the field. The "Platform Watchdog" feature of OpenSync provides a proxy between a HW watchdog timer (WDT) and OpenSync (OS). It provides a Watchdog Proxy Daemon (WPD) with the purpose of stimulating the hardware Watchdog Timer (WDT) while ensuring that the upper layers (OS) remain sufficiently responsive. In case of system anomalies, if the WPD fails to refresh and the hardware Watchdog Timer (WDT) expires, the WDT chip intervenes by resetting the system. Upper layer (OS) is responsible for providing the daemon with information affirming that everything is functioning correctly, prompting the daemon to continue refreshing the WDT.
...