On Thu, Dec 31, 2015 at 11:47:57AM -0600, Nishanth Menon wrote:
> On 12/31/2015 11:29 AM, Eduardo Valentin wrote:
> > can we have a shorter title?
> >
> >
> > Orderly power off is supposed to take care of this. Looking at the code,
> > it will force a shutdown in case execution of userland command fails:
> >
> > static int __orderly_poweroff(bool force)
> > {
> > int ret;
> >
> > ret = run_cmd(poweroff_cmd);
> >
> > if (ret && force) {
> > pr_warn("Failed to start orderly shutdown: forcing the
> > issue\n");
> >
> > /*
> > * I guess this should try to kick off some daemon to sync
> > and
> > * poweroff asap. Or not even bother syncing if we're
> > doing an
> > * emergency shutdown?
> > */
> > emergency_sync();
> > kernel_power_off();
> > }
>
> Yes, it will *IF* userspace fails. the condition that I had tracked
> was before identifying the following fix[1] - Example fail is here[2]
>
OK. But still, why other users of orderly_poweroff do not
deserve to be fixed, then?
>
> I hope this explains the problem.
>
> [1]
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=00917b5c55aeb01322d5ab51af8c025b82959224
> [2] http://pastebin.ubuntu.com/14326688/
>
> [3]
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/am57xx-beagle-x15.dts#n738
>
> --
> Regards,
> Nishanth Menon
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