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 <tonychung00@xxxxxxxxx>
---
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 */
outb_p(t, WDT_EFDR); /* Write back to CRF7 */
--
1.7.0.4
--
To unsubscribe from this list: send the line "unsubscribe linux-watchdog" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
