Re: [Regression in 7.0] OLPC-XO-1.5 will not boot after commit 157266edcc
From: An
Date: Wed May 06 2026 - 20:15:05 EST
On 06/05/2026 10.07, Thorsten Leemhuis wrote:
Lo! Looks like nothing happened since the report (please correct me if> > FWIW, the culprit seems to be 157266edcc5671 ("x86/boot/e820: Simplify
I'm wrong, it's easy to miss something). Adding a few more people and
lists to the recipients of this reply, maybe that will things rolling
append_e820_table() and remove restriction on single-entry tables")
[v7.0-rc1] from Ingo.
Therefore adding David Gow, who submitted a fix for the culprit -- but
that didn't make it anywhere afaics, unless I'm missing something. For
details see:
https://lore.kernel.org/all/20260416065746.1896647-1-david@xxxxxxxxxxxx/
Ciao, Thorsten
Thanks Thorsten!
No, nothing happened here.
I have not been able to grok the program flow.
Now reading David's patch, the "initially no entry at all"
bit escaped me. Oh well.
I have compiled and booted mainline (today's git) with
David's patch applied just now. It works for me too.
Thank you David!
And thanks all,
An
On 4/19/26 22:08, An wrote:
On 19/04/2026 10.46, An wrote:
[please keep me in CC, I'm not subscribed]
Hi Ingo,
my OLPC XO-1.5 stopped booting when switching from 6.19 to 7.0
I bisected this to
commit 157266edcc56715323de1bd60e49194b3b66a174
Author: Ingo Molnar <mingo@xxxxxxxxxx>
Date: Thu May 15 14:05:41 2025 +0200
x86/boot/e820: Simplify append_e820_table() and remove
restriction on single-entry tables
The XO boots from a forth environment and is rather quirky.
If I can help with any logs or tests, please let me know.
I'm compiling a 7.0 kernel with the patch reverted,
but it smells like a plain revert isn't the best idea.
Thank you,
An Müller
I've tested both 7.0 and current mainline: with this patch reverted,
they boot fine, the revert applies cleanly in both cases.
Thanks,
An