diff options
| author | Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> | 2016-10-07 15:39:56 +0300 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2016-10-08 10:27:17 +0200 |
| commit | da0d12ff2b829a35e9921918e925d79497b82bef (patch) | |
| tree | 6c72ee5f9d3b26a9cb23baed655545b52559aba4 /drivers/watchdog/watchdog_pretimeout.h | |
| parent | f77710c4cda01ad9c3672fb2f97bdea9a94da92a (diff) | |
watchdog: pretimeout: add panic pretimeout governor
The change adds panic watchdog pretimeout governor, on watchdog
pretimeout event the kernel shall panic. In general watchdog
pretimeout event means that something essentially bad is going on the
system, for example a process scheduler stalls or watchdog feeder is
killed due to OOM, so printing out information attendant to panic and
before likely unavoidable reboot caused by a watchdog may help to
determine a root cause of the issue.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/watchdog_pretimeout.h')
| -rw-r--r-- | drivers/watchdog/watchdog_pretimeout.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_pretimeout.h b/drivers/watchdog/watchdog_pretimeout.h index c4b6f88dc9c9..867492aa7ea6 100644 --- a/drivers/watchdog/watchdog_pretimeout.h +++ b/drivers/watchdog/watchdog_pretimeout.h @@ -22,6 +22,8 @@ int watchdog_pretimeout_governor_get(struct watchdog_device *wdd, char *buf); #if IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP) #define WATCHDOG_PRETIMEOUT_DEFAULT_GOV "noop" +#elif IS_ENABLED(CONFIG_WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC) +#define WATCHDOG_PRETIMEOUT_DEFAULT_GOV "panic" #endif #else |