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Date:      Mon, 23 Sep 2019 20:16:32 -0400
From:      Thomas Laus <lausts@acm.org>
To:        Pete Wright <pete@nomadlogic.org>
Cc:        Poul-Henning Kamp <phk@phk.freebsd.dk>, freebsd-current@freebsd.org
Subject:   Re: Booting anything after r352057 kills console
Message-ID:  <20190924001632.GA57558@mail.laus.org>
In-Reply-To: <0eb339eb-5eb2-b75b-7fef-c22d02b824af@nomadlogic.org>
References:  <11db909b-57ee-b452-6a17-90ec2765c36e@acm.org> <18332.1569268545@critter.freebsd.dk> <20190923213222.GA57158@mail.laus.org> <0eb339eb-5eb2-b75b-7fef-c22d02b824af@nomadlogic.org>

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Pete Wright [pete@nomadlogic.org] wrote:
>
> I remember having similar issues a while ago when we were first hacking on
> drm, one thing to try is updating /boot/loader.conf with the following:
> debug.debugger_on_panic=3D0
> dev.drm.skip_ddb=3D"1"
> dev.drm.drm_debug_persist=3D"1"
>=20
> these are semi-documented in the wiki here:
> https://wiki.freebsd.org/Graphics#Issues_.2F_Bugs
>=20
> while they may not solve the issue, they will hopefully give us better in=
fo
> as to why the system is hanging.=C2=A0 Also, are you able to boot the pre=
viously
> working kernel (iirc you can do this via the boot loader menu) successful=
ly?=C2=A0
> and lasty, can you boot single user then manually attempt to load the ker=
nel
> module via kldload i915kms.ko?
>
I am not 100 percent sure that this is a DRM problem.  I have de-installed
everything related to DRM and commented out the rc.conf statement that
loads the DRM modules and still can't get past the last few steps of the
startup.  I did see that ntpd does read it's configuration file because
my /var/log/messages has an entry for reading the leap seconds file.  That
is the last entry in the /var/log/messages file.

I am able to successfully use the beadm choice 7 in the boot chooser to load
a previously good boot environment working kernel.

I'll try your other suggestions tomorrow morning and post the result to
this group.

Tom


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