Bug 244274

Summary:	set hw.syscons.disable=1 FreeBSD is crashed!
Product:	Base System	Reporter:	Brian Zou <zoujiaqing>
Component:	kern	Assignee:	freebsd-bugs (Nobody) <bugs>
Status:	Open ---
Severity:	Affects Only Me	Keywords:	crash, needs-qa
Priority:	---
Version:	12.1-RELEASE
Hardware:	Any
OS:	Any

Description Brian Zou 2020-02-21 10:16:41 UTC

My hardware CPU AMD 3700U and Vega 10 Graphics device.
Bois booting mode is EFI.

Comment 1 Kubilay Kocak freebsd_committer

2020-02-21 10:27:59 UTC

@Brian Can you provide a screenshot of the crash/panic message and/or a backtrace of the crash? 

Additionally, please provide:

 - Exact/full FreeBSD version information (uname -a output)
 - /var/run/dmesg.boot contents (as an attachment)
 - pciconf -lv output (as an attachment)

Without that information and steps to reproduce it will be difficult to isolate/resolve

See also: https://www.freebsd.org/doc/en/books/developers-handbook/kerneldebug.html

Comment 2 Kubilay Kocak freebsd_committer

2020-02-21 10:30:12 UTC

(In reply to Kubilay Kocak from comment #1)

Also that might be handy:

 - Contents of /boot/loader.conf (as an attachment, if not empty)
 - Contents of /etc/rc.conf (as an attachment)
 - Contents of /etc/sysctl.conf (as an attachment, if not empty)

Comment 3 Brian Zou 2020-02-22 07:36:41 UTC

I can't mount system dish in LiveCD!

- /boot/loader.conf
    : only set hw.syscons.disable=1
- /etc/rc.conf
    : only add kld_list="amdgpu"
- /etc/sysctl.conf
    : not set

Comment 4 Mark Linimon freebsd_committer

2020-02-22 13:23:10 UTC

*** Bug 244273 has been marked as a duplicate of this bug. ***