Re: black screen, boot doesn't finish

[Thomas Klausner <wiz%NetBSD.org@localhost>]

Hi!

I tracked it down.

This commit

$NetBSD: drmfb.c,v 1.13 2022/02/16 23:30:10 riastradh Exp $

makes my graphical console disappear.

I booted one kernel with this and it doesn't return from switching to
graphical console (the monitor reports 'no signal'). A kernel with
that commit backed out boots fine.
 Thomas

On Thu, Feb 17, 2022 at 08:12:17PM +0100, Thomas Klausner wrote:
> Hi!
> 
> I wanted to try the bugfix for PR 56718, but a kernel from a few
> minutes ago doesn't finish booting for me. When it switched to
> graphical console, the screen goes black and doesn't come back (before
> that, it usually took about 2s then it continued booting).
> 
> My last working kernel is
> 
> -rwxr-xr-x  2 root  wheel   29481968 Feb 16 17:30 /netbsd.9.99.93d
> (with a partial version of thorpej's bugfix for 56718)
> 
> The non-working one is
> 
> -rwxr-xr-x  2 root  wheel  29481848 Feb 17 19:59 /netbsd.9.99.93e
> 
> The diff of ident is:
> 
> 1c1
> < /netbsd.9.99.93d:
> ---
> > /netbsd.9.99.93e:
> 234c234
> <      $NetBSD: if_sip.c,v 1.184 2021/12/31 14:25:23 riastradh Exp $
> ---
> >      $NetBSD: if_sip.c,v 1.185 2022/02/16 22:00:56 andvar Exp $
> 784,791d783
> <      $NetBSD: OsdEnvironment.c,v 1.7 2021/08/21 23:00:31 andvar Exp $
> <      $NetBSD: OsdHardware.c,v 1.13 2021/12/31 17:22:15 riastradh Exp $
> <      $NetBSD: OsdInterrupt.c,v 1.9 2018/03/20 12:14:52 bouyer Exp $
> <      $NetBSD: OsdMemory.c,v 1.5 2012/04/22 06:33:04 jruoho Exp $
> <      $NetBSD: OsdMisc.c,v 1.16 2017/01/25 13:38:40 christos Exp $
> <      $NetBSD: OsdSchedule.c,v 1.20 2021/12/31 14:22:26 riastradh Exp $
> <      $NetBSD: OsdStream.c,v 1.1 2006/03/23 13:41:13 kochi Exp $
> <      $NetBSD: OsdSynch.c,v 1.13 2009/08/18 16:41:02 jmcneill Exp $
> 2089c2081
> <      $NetBSD: ip_reass.c,v 1.21 2018/10/12 05:41:18 maxv Exp $
> ---
> >      $NetBSD: ip_reass.c,v 1.22 2022/02/16 22:00:56 andvar Exp $
> 2296c2288
> <      $NetBSD: rf_evenodd_dagfuncs.c,v 1.24 2019/10/10 03:43:59 christos Exp $
> ---
> >      $NetBSD: rf_evenodd_dagfuncs.c,v 1.25 2022/02/16 22:00:56 andvar Exp $
> 2344c2336
> <      $NetBSD: drmfb.c,v 1.12 2021/12/20 20:34:59 chs Exp $
> ---
> >      $NetBSD: drmfb.c,v 1.13 2022/02/16 23:30:10 riastradh Exp $
> 2761c2753
> <      $NetBSD: sys_eventfd.c,v 1.8 2021/11/24 16:35:33 thorpej Exp $
> ---
> >      $NetBSD: sys_eventfd.c,v 1.9 2022/02/17 16:28:29 thorpej Exp $
> 2778c2770
> <      $NetBSD: sys_timerfd.c,v 1.7 2021/11/24 16:35:33 thorpej Exp $
> ---
> >      $NetBSD: sys_timerfd.c,v 1.8 2022/02/17 16:28:29 thorpej Exp $
> 2817c2809
> <      $NetBSD: vfs_vnode.c,v 1.130 2022/02/12 15:51:29 thorpej Exp $
> ---
> >      $NetBSD: vfs_vnode.c,v 1.133 2022/02/17 14:39:51 hannken Exp $
> 2923a2916,2923
> >      $NetBSD: OsdEnvironment.c,v 1.7 2021/08/21 23:00:31 andvar Exp $
> >      $NetBSD: OsdHardware.c,v 1.13 2021/12/31 17:22:15 riastradh Exp $
> >      $NetBSD: OsdInterrupt.c,v 1.9 2018/03/20 12:14:52 bouyer Exp $
> >      $NetBSD: OsdMemory.c,v 1.5 2012/04/22 06:33:04 jruoho Exp $
> >      $NetBSD: OsdMisc.c,v 1.16 2017/01/25 13:38:40 christos Exp $
> >      $NetBSD: OsdSchedule.c,v 1.20 2021/12/31 14:22:26 riastradh Exp $
> >      $NetBSD: OsdStream.c,v 1.1 2006/03/23 13:41:13 kochi Exp $
> >      $NetBSD: OsdSynch.c,v 1.13 2009/08/18 16:41:02 jmcneill Exp $
> 2935c2935
> <      $NetBSD: linux_dma_buf.c,v 1.13 2021/12/19 12:01:40 riastradh Exp $
> ---
> >      $NetBSD: linux_dma_buf.c,v 1.14 2022/02/17 01:38:38 riastradh Exp $
> 
> Ideas?
>  Thomas