NetBSD Problem Report #56624

From www@netbsd.org  Thu Jan 13 21:47:10 2022
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Date: Thu, 13 Jan 2022 21:47:09 +0000 (UTC)
From: jsarkes@gmail.com
Reply-To: jsarkes@gmail.com
To: gnats-bugs@NetBSD.org
Subject: kernel crash during boot
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>Number:         56624
>Category:       kern
>Synopsis:       kernel crash during boot
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 13 21:50:00 +0000 2022
>Last-Modified:  Fri Jan 14 16:00:02 +0000 2022
>Originator:     Joseph Sarkes
>Release:        current 9.99.93
>Organization:
none
>Environment:
not availqable atm. if needed send email
>Description:
9.99.92 works fine. since 9.99.93 (over 2 weeks?) on my amd g14 zephyr laptop kernel crashes into the debugger during boot. this is using the install image for gpt on a usb flashdrive. i think it is at just after nouveau is done and then an issue of unable to copen console if memory serves. i can maybe help to determine what is happening if given directions, but there is no kernel startup and no dmesg available, no serial port for logging the startup either so it'll be typed email if needed. i didn't report it weeks ago expecting it to just be a transient from development but it has persisted.
>How-To-Repeat:
install image from current 9.99.93 on asus zephyr laptop. just boot it and it fails into the debugger.
>Fix:
run 9.99.92

>Audit-Trail:
From: Patrick Welche <prlw1@talktalk.net>
To: gnats-bugs@netbsd.org
Cc: jsarkes@gmail.com
Subject: Re: kern/56624: kernel crash during boot
Date: Fri, 14 Jan 2022 15:57:53 +0000

 After a discussion with Joseph, it appears that in 9.99.92 nouveau did not
 attach to his graphics card. Disabling nouveau via userconf allowed him
 to boot successfully with 9.99.93.

 Copied from one of his photographs of an unsuccesful 9.99.93 boot:

 nouveau0: info: DRM MM: using COPY for buffer copies
 kern info: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013)
 kern info: [drm] Driver supports precise vblank timestamp query
 nouveau0: info: [drm] Cannot find any crtc or sizes
 kern info: [drm] Initialized nouveau 1.3.1 20120801 for nouveau0 on minor 0
 panic: cnopen: no console device

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