diff options
Diffstat (limited to 'Documentation/watchdog')
| -rw-r--r-- | Documentation/watchdog/hpwdt.rst | 4 | ||||
| -rw-r--r-- | Documentation/watchdog/watchdog-parameters.rst | 11 |
2 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/watchdog/hpwdt.rst b/Documentation/watchdog/hpwdt.rst index 49c647dba8aa..c824cd7f6e32 100644 --- a/Documentation/watchdog/hpwdt.rst +++ b/Documentation/watchdog/hpwdt.rst @@ -39,6 +39,10 @@ Last reviewed: 08/20/2018 Default value is set when compiling the kernel. If it is set to "Y", then there is no way of disabling the watchdog once it has been started. + kdumptimeout Minimum timeout in seconds to apply upon receipt of an NMI + before calling panic. (-1) disables the watchdog. When value + is > 0, the timer is reprogrammed with the greater of + value or current timeout value. ============ ================================================================ NOTE: diff --git a/Documentation/watchdog/watchdog-parameters.rst b/Documentation/watchdog/watchdog-parameters.rst index b121caae7798..a3985cc5aeda 100644 --- a/Documentation/watchdog/watchdog-parameters.rst +++ b/Documentation/watchdog/watchdog-parameters.rst @@ -13,6 +13,17 @@ modules. ------------------------------------------------- +watchdog core: + open_timeout: + Maximum time, in seconds, for which the watchdog framework will take + care of pinging a running hardware watchdog until userspace opens the + corresponding /dev/watchdogN device. A value of 0 means an infinite + timeout. Setting this to a non-zero value can be useful to ensure that + either userspace comes up properly, or the board gets reset and allows + fallback logic in the bootloader to try something else. + +------------------------------------------------- + acquirewdt: wdt_stop: Acquire WDT 'stop' io port (default 0x43) |