Re: [PATCH v3 3/3] sched, x86: Check that we're on the right stack in schedule and __might_sleep

From: Borislav Petkov
Date: Thu Nov 20 2014 - 05:28:45 EST

On Wed, Nov 19, 2014 at 04:46:29PM -0800, Andy Lutomirski wrote:
> So we'd do, in do_machine_check:
> irq_enter();
> do atomic stuff;
> ist_stop_being_atomic(regs);
> local_irq_enable();
> ...
> local_irq_disable();
> ist_start_being_atomic_again();

Well, why would I want to go atomic again? We just do the minimally
needed atomic stuff, irq_exit() and then do the rest.

> irq_exit();


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