freebsd stable - Feb 2021 - Setting for displaying utf8 characters on all vt consoles results in panic on 14-CURRENT and 13.0-ALPHA3

From: Yasuhiro Kimura <yasu at utahime.org>
Subject: Setting for displaying utf8 characters on all vt consoles results in
panic on 14-CURRENT and 13.0-ALPHA3
Date: Mon, 01 Feb 2021 11:41:35 +0900 (JST)
> To display utf8 characters on all vt console I did following settings.
> 
> 1. Download GNU Unifont BDF file
>   
(http://unifoundry.com/pub/unifont/unifont-13.0.05/font-builds/unifont-13.0.05.bdf.gz)
> 2. gunzip unifont-13.0.05.bdf.gz
> 3. vtfontcvt unifont-13.0.05.bdf unifont.fnt
> 4. cp unifont.fnt /usr/share/vt/fonts
> 5. Add 'allscreens_flags="-f 8x16 unifont.fnt"' to
/etc/rc.conf
> 6. Add 'hw.vga.textmode=0' to /boot/loader.conf.local
> 7. shutdown -r now
> 
> On 12.2-RELEASE and 11.4-RELEASE it works as is expected. But on
> 14-CURRENT(man) and 13.0-ALPHA3(stable/13) it result in kernel panic.
> 
> Screen shot of 14-CURRENT.
> https://www.utahime.org/FreeBSD/panic.20210201.14-CURRENT.png
> 
> 14-CURRENT(main):
> yasu at rolling-vm-freebsd1[1006]% uname -a
> FreeBSD rolling-vm-freebsd1.home.utahime.org 14.0-CURRENT FreeBSD
14.0-CURRENT #0 main-n244517-f17fc5439f5: Mon Feb  1 10:55:51 JST 2021     rootz
at
rolling-vm-freebsd1.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC
amd64
> 
> 13.0-ALPHA3(stable/13):
> yasu at rolling-vm-freebsd5[1005]% uname -a
> FreeBSD rolling-vm-freebsd5.home.utahime.org 13.0-ALPHA3 FreeBSD
13.0-ALPHA3 #0 stable/13-c256214-g40cb0344eb2: Mon Feb  1 11:30:28 JST 2021    
rootz at
rolling-vm-freebsd5.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC
amd64
I submitted this problem to Bugzilla.

Bug 253147 - Setting for displaying utf8 characters on all vt consoles
results in panic on 14-CURRENT and 13.0-ALPHA3
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253147

---
Yasuhiro Kimura

> On 1. Feb 2021, at 05:35, Yasuhiro Kimura <yasu at utahime.org>
wrote:
> 
> From: Yasuhiro Kimura <yasu at utahime.org <mailto:yasu at
utahime.org>>
> Subject: Setting for displaying utf8 characters on all vt consoles results
in panic on 14-CURRENT and 13.0-ALPHA3
> Date: Mon, 01 Feb 2021 11:41:35 +0900 (JST)
> 
>> To display utf8 characters on all vt console I did following settings.
>> 
>> 1. Download GNU Unifont BDF file
>>  
(http://unifoundry.com/pub/unifont/unifont-13.0.05/font-builds/unifont-13.0.05.bdf.gz)
>> 2. gunzip unifont-13.0.05.bdf.gz
>> 3. vtfontcvt unifont-13.0.05.bdf unifont.fnt
>> 4. cp unifont.fnt /usr/share/vt/fonts
>> 5. Add 'allscreens_flags="-f 8x16 unifont.fnt"' to
/etc/rc.conf
>> 6. Add 'hw.vga.textmode=0' to /boot/loader.conf.local
>> 7. shutdown -r now
>> 
>> On 12.2-RELEASE and 11.4-RELEASE it works as is expected. But on
>> 14-CURRENT(man) and 13.0-ALPHA3(stable/13) it result in kernel panic.
>> 
>> Screen shot of 14-CURRENT.
>> https://www.utahime.org/FreeBSD/panic.20210201.14-CURRENT.png
>> 
>> 14-CURRENT(main):
>> yasu at rolling-vm-freebsd1[1006]% uname -a
>> FreeBSD rolling-vm-freebsd1.home.utahime.org 14.0-CURRENT FreeBSD
14.0-CURRENT #0 main-n244517-f17fc5439f5: Mon Feb  1 10:55:51 JST 2021     rootz
at
rolling-vm-freebsd1.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC
amd64
>> 
>> 13.0-ALPHA3(stable/13):
>> yasu at rolling-vm-freebsd5[1005]% uname -a
>> FreeBSD rolling-vm-freebsd5.home.utahime.org 13.0-ALPHA3 FreeBSD
13.0-ALPHA3 #0 stable/13-c256214-g40cb0344eb2: Mon Feb  1 11:30:28 JST 2021    
rootz at
rolling-vm-freebsd5.home.utahime.org:/usr0/freebsd/src/obj/usr0/freebsd/src/git/amd64.amd64/sys/GENERIC
amd64
> 
> I submitted this problem to Bugzilla.
> 
> Bug 253147 - Setting for displaying utf8 characters on all vt consoles
> results in panic on 14-CURRENT and 13.0-ALPHA3
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253147
<https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253147>
> 
> ---
> Yasuhiro Kimura
Should be fixed on current now.

thanks,
toomas

From: Toomas Soome via freebsd-current <freebsd-current at freebsd.org>
Subject: Re: Setting for displaying utf8 characters on all vt consoles results
in panic on 14-CURRENT and 13.0-ALPHA3
Date: Tue, 2 Feb 2021 00:35:49 +0200
> Should be fixed on current now.
Confirmed. Would you please MFC to stable/13?

Best Regards.

---
Yasuhiro Kimura