Re: 5.10 RC 7: grub2 out of memory

From: Elias Carter <edcarter@ualberta.ca>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 5.10 RC 7: grub2 out of memory
Date: Mon, 7 Dec 2020 01:29:34 -0800	[thread overview]
Message-ID: <CAJWrxn3qCJnVL5QTSyu81CPm35RL3x4qfd7ux3bB3HByfkbPSQ@mail.gmail.com> (raw)
In-Reply-To: <CAJWrxn12rrMtomPUcu4GsDeTe5vpGKsR-F6=hM1Y8a=iAY+gag@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 1002 bytes --]

Resending grub config since that appeared to be mangled by my mail client:

On Mon, Dec 7, 2020 at 1:16 AM Elias Carter <edcarter@ualberta.ca> wrote:
>
> I just compiled and installed 5.10 RC 7 and got a message from grub2:
> "out of memory, press any key to continue" shortly followed by a
> kernel panic (see attached screenshot).
>
> The 5.4.0-56-generic kernel from Ubuntu works on my machine fine.
>
> Things I have tried so far:
> - setting grub video mode to "console"
> - setting grub video resolution to 800x600
> - regenerating the initramfs for 5.10 RC 7
> - verifying that /boot has free space
> - changing boot mode from UEFI to legacy BIOS
>
> I have attached the following:
> 1.) dmesg ran from using the 5.4 kernel (since I cant boot into 5.10 RC 7)
> 2.) my 5.10 RC 7 kernel .config
> 3.) screenshot of kernel panic after "out of memory" grub2 message
> 4.) my /etc/default/grub
>
> Please let me know if you would like any more information or testing of patches.
>
> Thanks,
> Elias

[-- Attachment #2: grub-config.txt --]
[-- Type: text/plain, Size: 1235 bytes --]

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=0
GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=800x600

GRUB_GFXPAYLOAD_LINUX=keep

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"