Re: [GIT PULL] printk for 4.13
From: Sergey Senozhatsky
Date: Wed Jul 05 2017 - 21:18:41 EST
On (07/05/17 18:15), Linus Torvalds wrote:
> On Wed, Jul 5, 2017 at 5:44 PM, Sergey Senozhatsky
> <sergey.senozhatsky.work@xxxxxxxxx> wrote:
> > PRINTK_NMI_DEFERRED_CONTEXT_MASK calls into vprintk_deferred(), which
> > does vprintk_emit(0, LOGLEVEL_SCHED, NULL, 0, fmt, args). and
> > vprintk_emit() LOGLEVEL_SCHED is nothing, but printk_deferred(), which
> > never calls into the scheduler and does not even try to lock console_sem.
> Hmm. Ok. I think I see what you're saying. We're just adding it to the
> log buffer, but not actually going through the whole "lets see if we
> can push it further".
> So I will take another look tomorrow, right now I'm feeling a bit
> merged out for the day,