linux-kernel - Re: [BUG linux-next] Hang in boot on Ubuntu 22.04 LTS

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Date: Mon, 17 Jun 2024 20:16:56 +0200
From: Mirsad Todorovac <mtodorovac69@...il.com>
To: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc: Thomas Zimmermann <tzimmermann@...e.de>, Sam Ravnborg <sam@...nborg.org>,
 Vineet Gupta <vgupta@...nel.org>, Catalin Marinas <catalin.marinas@....com>,
 Will Deacon <will@...nel.org>, Huacai Chen <chenhuacai@...nel.org>,
 WANG Xuerui <kernel@...0n.name>, Geert Uytterhoeven <geert@...ux-m68k.org>,
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
 "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
 Helge Deller <deller@....de>, Michael Ellerman <mpe@...erman.id.au>,
 Nicholas Piggin <npiggin@...il.com>,
 Yoshinori Sato <ysato@...rs.sourceforge.jp>, Rich Felker <dalias@...c.org>,
 John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
 "David S. Miller" <davem@...emloft.net>,
 Andreas Larsson <andreas@...sler.com>, Thomas Gleixner <tglx@...utronix.de>,
 Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
 "H. Peter Anvin" <hpa@...or.com>, Arnd Bergmann <arnd@...db.de>
Subject: Re: [BUG linux-next] Hang in boot on Ubuntu 22.04 LTS

On 5/18/24 00:51, Mirsad Todorovac wrote:
> Hi, all,
> 
> Between next-20240503 and next-20240506 there was a problem that prevented booting in
> Ubuntu 22.04 LTS on an AMD Ryzen 9 box.
> 
> The symptom is stuck boot with blank screen and an underscore blinking. After CTRL+ALT+DEL,
> the kernel shuts down and reboots back into grub.
> 
> After next-20240503, the boot never succeeded on this configuration, but I am unable to
> see what went wrong.
> 
> Please find attached the config and lshw.txt.
> 
> I thought it would be
> 
> # good: [f25eae2c405cbe810f8c52d743ea2b507c3fc301] arch: Select fbdev helpers with CONFIG_VIDEO
> git bisect good f25eae2c405cbe810f8c52d743ea2b507c3fc301
> # bad: [2fd001cd36005846caa6456fff1008c6f5bae9d4] arch: Rename fbdev header and source files
> git bisect bad 2fd001cd36005846caa6456fff1008c6f5bae9d4
> # good: [f178e96de7f0868e1b4d6df687794961f30125f2] arch: Remove struct fb_info from video helpers
> git bisect good f178e96de7f0868e1b4d6df687794961f30125f2
> # first bad commit: [2fd001cd36005846caa6456fff1008c6f5bae9d4] arch: Rename fbdev header and source files
> 
> Best regards,
> Mirsad Todorovac

Hi all,

FYI: Now, after building 6.10.0-rc3-next-20240612, the issue with the hang in Ubuntu 22.04 LTS
appears to be fixed.

In case of the requirement, I could try to bisect to the exact commit which fixed the problem.

Hope this helps.

Best regards,
Mirsad Todorovac