Re: suspicious behaviour in pcwd driver.

From: Dave Jones
Date: Mon Aug 22 2005 - 15:02:06 EST


On Mon, Aug 22, 2005 at 02:30:06PM -0400, Dave Jones wrote:
> 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)

I was looking at an old tree, and this is now kernel_power_off()
so this isn't a problem for pcwd, however the export is still needed
for drivers/macintosh/therm_pm72.c

> 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 ?

AFAICS, this is still a problem with kernel_power_off() though ?

Dave

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