suspicious behaviour in pcwd driver.

From: Dave Jones
Date: Mon Aug 22 2005 - 14:56:34 EST


drivers/char/watchdog/pcwd.c does this if it detects
a temperature out of range..

if (temp_panic) {
printk (KERN_INFO PFX "Temperature overheat trip!\n");
machine_power_off();
}

Two problems here are..

1. machine_power_off() isn't exported on ppc64. (patch below)
2. that printk will never hit the logs, so the admin will just find
a powered off box with no idea what happened.
Should we at least sync block devices before doing the power off ?

Dave



Export machine_power_off() on ppc64, as the pcwd watchdog driver needs it.

Signed-off-by: Dave Jones <davej@xxxxxxxxxx>

--- linux-2.6.12/arch/ppc64/kernel/setup.c~ 2005-08-09 17:37:36.000000000 -0400
+++ linux-2.6.12/arch/ppc64/kernel/setup.c 2005-08-09 17:37:53.000000000 -0400
@@ -706,6 +706,7 @@ void machine_power_off(void)
local_irq_disable();
while (1) ;
}
+EXPORT_SYMBOL(machine_power_off);

void machine_halt(void)
{


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