On Sat, Mar 30, 2013 at 06:59:08PM -0700, Tony Chung wrote:
> Observed that the w83627hf watchdog timer start counting during reboot.
> If the system load the driver after 5 minutes, it rebooted immediately
> because of timer expired.
> For example, fsck took more than 5 minutes to run, then reboot will occurred.
>
> Signed-off-by: Tony Chung <tonychun...@gmail.com>
> ---
> drivers/watchdog/w83627hf_wdt.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
> index 8f1111d..47eb233 100644
> --- a/drivers/watchdog/w83627hf_wdt.c
> +++ b/drivers/watchdog/w83627hf_wdt.c
> @@ -174,6 +174,11 @@ static void w83627hf_init(void)
>
> outb_p(0xF7, WDT_EFER); /* Select CRF7 */
> t = inb_p(WDT_EFDR); /* read CRF7 */
> + if (t & 0x10) {
> + pr_info("Watchdog Timer timeout occurred!");
> + t &= ~0x10; /* clear the event */
> + pr_info("Event cleared\n");
> + }
> t &= ~0xC0; /* disable keyboard & mouse turning off
> watchdog */
I would suggest to simply clear it silently. I don't think an extra message
provides any real value.
t &= ~0xE0; /* clear watchdog, disable keyboard & mouse
turning off watchdog */
Guenter
> outb_p(t, WDT_EFDR); /* Write back to CRF7 */
> --
> 1.7.0.4
>
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