Re: [PATCH] cpu/hotplug: handle unbalanced hotplug enable/disable

[Thomas Gleixner]

On Mon, 25 Apr 2016, Lianwei Wang wrote:
> On Mon, Apr 25, 2016 at 1:22 AM, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote:
> >> Anyway, from a product perspective way, if we don't want to restore
> >> the unbalanced counter to 0, then maybe a BUG_ON is more reasonable
> >> than WARN_ON.
> >
> > Not at all. BUG_ON is the last resort if we have no other way to handle an
> > issue.
> Actually to the customer, you do nothing currently at all, and once it
> happened then there is no way for the customer to recover it except do
> a power cycle. A BUG_ON can trigger a power cycle and recover it.

Do you have a single incident where this happened?

Thanks,

	tglx