lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <0293b14b-6188-4229-9fb6-29fbbdb8dc83@gmx.de>
Date: Fri, 19 Jan 2024 21:55:32 +0100
From: Helge Deller <deller@....de>
To: Jens Axboe <axboe@...nel.dk>, LKML <linux-kernel@...r.kernel.org>,
 "regressions@...ts.linux.dev" <regressions@...ts.linux.dev>,
 dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
 Thomas Zimmermann <tzimmermann@...e.de>
Cc: avier Martinez Canillas <javierm@...hat.com>,
 Mirsad Todorovac <mirsad.todorovac@....unizg.hr>
Subject: Re: REGRESSION: no console on current -git

Adding Mirsad Todorovac (who reported a similar issue).

On 1/19/24 19:39, Jens Axboe wrote:
> My trusty R7525 test box is failing to show a console, or in fact anything,
> on current -git. There's no output after:
>
> Loading Linux 6.7.0+ ...
> Loading initial ramdisk ...
>
> and I don't get a console up. I went through the bisection pain and
> found this was the culprit:
>
> commit df67699c9cb0ceb70f6cc60630ca938c06773eda
> Author: Thomas Zimmermann <tzimmermann@...e.de>
> Date:   Wed Jan 3 11:15:11 2024 +0100
>
>      firmware/sysfb: Clear screen_info state after consuming it
>
> Reverting this commit, and everything is fine. Looking at dmesg with a
> buggy kernel, I get no frame or fb messages. On a good kernel, it looks
> ilke this:
>
> [    1.416486] efifb: probing for efifb
> [    1.416602] efifb: framebuffer at 0xde000000, using 3072k, total 3072k
> [    1.416605] efifb: mode is 1024x768x32, linelength=4096, pages=1
> [    1.416607] efifb: scrolling: redraw
> [    1.416608] efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0
> [    1.449746] fb0: EFI VGA frame buffer device
>
> Happy to test a fix, or barring that, can someone just revert this
> commit please?

I've temporarily added a revert patch into the fbdev for-next tree for now,
so people should not face the issue in the for-next series:
https://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev.git/commit/?h=for-next
I'd like to wait for Thomas to return on monday to check the issue
as there are some other upcoming patches in this area from him.

Helge

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ