[PATCH v2] reboot: Backup orderly_poweroff
mingo at kernel.org
Fri Jan 15 02:14:59 PST 2016
* One Thousand Gnomes <gnomes at lxorguk.ukuu.org.uk> wrote:
> > If kernel_power_off() is called then the system should power off. No ifs and
> > whens.
> Even if it doesn't the watchdog should kill it.
> That is broken on some platforms on the watchdog side as the
> watchdog shuts down during our power off callbacks - because the system
> firmware is too stupid to reset the watchdog as it powers back up (so
> keeps rebooting).
> If you watchdog and firmware function properly you shouldn't even have to
> care if you crash during the kernel power off.
That's a good point as well - if the system is 'stuck' for some notion of stuck,
then watchdog drivers can help.
Here it's unclear whether user-space even called the sys_reboot() system call.
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