Re: Linux 5.11-rc5

From: Pavel Machek
Date: Thu Jan 28 2021 - 16:02:33 EST


Hi!

/-/blob/master/kconfig/debug
> > >
> > > Here's a boot dmesg from some affected machines from just before the merge
> > > with rc5:
> > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/shard-skl1/boot18.txt
> > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-skl-6600u/boot.html
> > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bsw-cyan/boot.html
> > > https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_9676/fi-bdw-samus/boot.html
> >
> > Is there any way to get early console from these machines?
>
> 12:16 tsa : none of those have good hook for serial
>
> Nothing on the console and no serial console option, and panics before
> netconsole.

In some experiments I was successful with console=ttyUSB kind of
setup...

...and I kind of wonder if we should work on getting it workig on more
machines, at that seems to be only reasonable way.

Umm...

Actually, we still have VGA and can put console on that, no?
early_printk option should really work quite early on PC.

Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek

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