NetBSD Problem Report #56858

From wiz@yt.nih.at  Fri May 27 06:36:19 2022
Return-Path: <wiz@yt.nih.at>
Received: from mail.netbsd.org (mail.netbsd.org [199.233.217.200])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))
	(Client CN "mail.NetBSD.org", Issuer "mail.NetBSD.org CA" (not verified))
	by mollari.NetBSD.org (Postfix) with ESMTPS id 5580A1A921F
	for <gnats-bugs@gnats.NetBSD.org>; Fri, 27 May 2022 06:36:19 +0000 (UTC)
Message-Id: <20220527055558.DAEC31CB6AB4@yt.nih.at>
Date: Fri, 27 May 2022 07:55:58 +0200 (CEST)
From: Thomas Klausner <wiz@NetBSD.org>
Reply-To: Thomas Klausner <wiz@NetBSD.org>
To: gnats-bugs@NetBSD.org
Subject: panic booting without connected monitor
X-Send-Pr-Version: 3.95

>Number:         56858
>Category:       kern
>Synopsis:       panic booting without connected monitor
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri May 27 06:40:00 +0000 2022
>Last-Modified:  Sat May 20 23:00:02 +0000 2023
>Originator:     Thomas Klausner
>Release:        NetBSD 9.99.97/20220526
>Organization:

>Environment:
Architecture: x86_64
Machine: amd64
>Description:
When booting without an attached monitor, NetBSD panics (hand-copied):

breakpoint()
vpanic()
panic()
cnopen() at netbsd:cnopen+0xf2
cdev_open() at netbsd:cdev_open+0x1ab
spec_open() at netbsd:spec_open+0x224
VOP_OPEN() at netbsd:VOP_OPEN+0x3c
vn_open() at netbsd:vn_open+0x32e
do_open() at netbsd:do_open+0xc3
do_sys_openat() at netbsd:do_sys_openat+0x74
sys_open() at netbsd:sys_open+0x24
syscall() at netbsd:syscall+0x196

dmesg|grep nouveau from a boot with connected monitor:

nouveau0 at pci12 dev 0 function 0: NVIDIA GeForce GTX 1050 Ti (rev. 0xa1)
nouveau0: info: NVIDIA GP107 (137000a1)
nouveau0: info: bios: version 86.07.59.00.4f
nouveau0: interrupting at msi11 vec 0 (nouveau0)
nouveau0: info: fb: 4096 MiB GDDR5
nouveau0: info: DRM: VRAM: 4096 MiB
nouveau0: info: DRM: GART: 536870912 MiB
nouveau0: info: DRM: BIT table 'A' not found
nouveau0: info: DRM: BIT table 'L' not found
nouveau0: info: DRM: TMDS table version 2.0
nouveau0: info: DRM: DCB version 4.1
nouveau0: info: DRM: DCB outp 00: 01000f42 04620030
nouveau0: info: DRM: DCB outp 01: 02011f62 04620010
nouveau0: info: DRM: DCB outp 02: 02822f76 04600020
nouveau0: info: DRM: DCB outp 03: 02022f72 04620020
nouveau0: info: DRM: DCB conn 00: 00001031
nouveau0: info: DRM: DCB conn 01: 00010161
nouveau0: info: DRM: DCB conn 02: 00020246
nouveau0: info: DRM: MM: using COPY for buffer copies
nouveaufb0 at nouveau0
kern info: [drm] Initialized nouveau 1.3.1 20120801 for nouveau0 on minor 0
nouveaufb0: framebuffer at 0x80400000, size 3840x2160, depth 32, stride 15360
nouveau0: autoconfiguration error: error: DRM: core notifier timeout
nouveau0: autoconfiguration error: error: DRM: base-0: timeout
wsdisplay0 at nouveaufb0 kbdmux 1: console (default, vt100 emulation)

>How-To-Repeat:
Just boot without any monitor plugged into a NetBSD machine with a Geforce 1050TX.
>Fix:
Please.

>Audit-Trail:
From: Sergio de Almeida Lenzi <nervoso@k1.com.br>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: kern/56858
Date: Sat, 20 May 2023 19:59:03 -0300

 the probem is in the kms modules for the graphics card
 they signals kernel there is NO console

 Solution:
 disable all kms modules regarding to graphics card
 edit /boot.cfg, it must cointain:

 userconf=3Ddisable radeon
 userconf=3Ddisable nouveau
 userconf=3Ddisable i915drmkms

 the system will reboot without monitor

 Hope it can help...

>Unformatted:

Home	PR Database Search