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ipmi/watchdog: fix watchdog timeout set on reboot

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systemd by default starts watchdog on reboot and sets the timer to
ShutdownWatchdogSec=10min.  Reboot handler in ipmi_watchdog than reduces
the timer to 120s which is not enough time to boot a Xen machine with
a lot of RAM.  As a result the machine is rebooted the second time
during the long run of (XEN) Scrubbing Free RAM.....

Fix this by setting the timer to 120s only if it was previously
set to a low value.

Signed-off-by: Valentin Vidic <Valentin.Vidic@CARNet.hr>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Valentin Vidic 2017-05-05 21:07:33 +02:00 committed by Corey Minyard
parent cf9806f32e
commit 860f01e969
1 changed files with 4 additions and 3 deletions
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7
drivers/char/ipmi/ipmi_watchdog.c
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@ -1163,10 +1163,11 @@ static int wdog_reboot_handler(struct notifier_block *this,
ipmi_watchdog_state = WDOG_TIMEOUT_NONE;
ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);
} else if (ipmi_watchdog_state != WDOG_TIMEOUT_NONE) {
/* Set a long timer to let the reboot happens, but
reboot if it hangs, but only if the watchdog
/* Set a long timer to let the reboot happen or
reset if it hangs, but only if the watchdog
timer was already running. */
timeout = 120;
if (timeout < 120)
timeout = 120;
pretimeout = 0;
ipmi_watchdog_state = WDOG_TIMEOUT_RESET;
ipmi_set_timeout(IPMI_SET_TIMEOUT_NO_HB);