From: David Hildenbrand <david@redhat.com>
To: Elias Carter <edcarter@ualberta.ca>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: 5.10 RC 7: grub2 out of memory
Date: Mon, 7 Dec 2020 10:38:36 +0100 [thread overview]
Message-ID: <56e933e4-a495-1497-eb48-b9b8f0da46d3@redhat.com> (raw)
In-Reply-To: <CAJWrxn12rrMtomPUcu4GsDeTe5vpGKsR-F6=hM1Y8a=iAY+gag@mail.gmail.com>
On 07.12.20 10:16, Elias Carter 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.
The kernel crashes because it's unable to mount root - I suspect the
initrd is not loaded, because I would have expected systemd messages
before trying to mount root (after loading additional drivers from the
initrd). I assume grub2 fails to load the (now too big?) initrd - you
could try compiling out debug symbols and give it a try.
What's the size difference between old vs. new kernel and old vs. new
initrd?
Similar report for aarch64 was at
https://bugzilla.redhat.com/show_bug.cgi?id=1615969
which turned out to be a grub2 issue. Which distro/grub2 version etc are
you running?
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2020-12-07 9:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-07 9:16 Elias Carter
2020-12-07 9:29 ` Elias Carter
2020-12-07 9:30 ` Elias Carter
2020-12-07 9:38 ` David Hildenbrand [this message]
2020-12-07 9:45 ` Elias Carter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=56e933e4-a495-1497-eb48-b9b8f0da46d3@redhat.com \
--to=david@redhat.com \
--cc=edcarter@ualberta.ca \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox