Re: [PATCH tip/sched/core] mm/early_ioremap: Adjust early_ioremap system_state check
From: Thomas Gleixner
Date: Fri Jun 16 2017 - 06:59:14 EST
On Wed, 14 Jun 2017, Tom Lendacky wrote:
> A recent change added a new system_state value, SYSTEM_SCHEDULING, which
> exposed a warning issued by early_ioreamp() when the system_state was not
> SYSTEM_BOOTING. Since early_ioremap() can be called when the system_state
> is SYSTEM_SCHEDULING, the check to issue the warning is changed from
> system_state != SYSTEM_BOOTING to system_state >= SYSTEM_RUNNING.
Errm, why is that early_ioremap() stuff called after we enabled the
scheduler? At that point the regular ioremap stuff is long working.