Re: [printk] fbc14616f4: BUG:kernel_reboot-without-warning_in_test_stage

[Pavel Machek <pavel@ucw.cz>]

[-- Attachment #1: Type: text/plain, Size: 1418 bytes --]

On Wed 2017-04-12 01:19:53, Sergey Senozhatsky wrote:
> On (04/11/17 10:46), Sergey Senozhatsky wrote:
> > On (04/10/17 20:48), Pavel Machek wrote:
> > [..]
> > > > but, once again, I see your point.
> > > 
> > > Good. Does that mean that the next version of patches will work ok in
> > > that case?
> > 
> > yes.
> 
> ok... so I'm looking at something like below right now.
> not really tested yet.
> 
> I put some comments into the code.
> 
> it does offloading after X printed lines by the same process.
> if we reschedule, then the counter resets. which is probably OK,
> we don't really want any process, except for printk_kthread, to
> stay in console_unlock() forever. "number of lines printed" is
> probably easier to understand (easily converted to the number of
> pageup/pagedown you need to press, terminal buffer history size,
> etc.) than seconds we spent on printing (which doesn't even
> correspond to messages' timestamps in general case).

Design looks good to me... certainly better than previous version :-).
								

> when the limit of "number of lines printed" is 0, then no
> offloading takes place.

And with "number of lines printed" set to 999999, it will get us
previous behaviour, right? 

Thanks,
								Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 181 bytes --]