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On some hardware platforms, the it87_wdt watchdog resets the machine despite the watchdog daemon running and writing to /dev/watchdog. This is due to Consumer IR buffer underrun interrupts being used as triggers to reset the timer. On some buggy hardware implementations such as the iEi AFL-12A-N270 single-board computer, this method does not work. However, resetting the timer by writing its original timeout value in its configuration register over and over again suppresses the unwanted reboots. Add a module option (nocir), 0 by default in order not to break existing setups. Setting it to 1 enables the workaround. Fixes bug #42801 <https://bugzilla.kernel.org/show_bug.cgi?id=42801>. Tested primarily on Linux 3.5.7, applies cleanly on Linux 3.13.5. Signed-off-by: Marc van der Wal <x0r+kernel@x0r.fr> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> |
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| .. | ||
| src | ||
| convert_drivers_to_kernel_api.txt | ||
| hpwdt.txt | ||
| pcwd-watchdog.txt | ||
| watchdog-api.txt | ||
| watchdog-kernel-api.txt | ||
| watchdog-parameters.txt | ||
| wdt.txt | ||