linux-kernel - Re: [PATCH 0/2] J2 Turtle Board fixes

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Message-ID: <1551804b-fc78-4a3f-add8-af693f340a01@landley.net>
Date: Thu, 27 Feb 2025 21:03:42 -0600
From: Rob Landley <rob@...dley.net>
To: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
 Artur Rojek <contact@...ur-rojek.eu>,
 Yoshinori Sato <ysato@...rs.sourceforge.jp>, Rich Felker <dalias@...c.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Thomas Gleixner <tglx@...utronix.de>, Uros Bizjak <ubizjak@...il.com>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>,
 "D . Jeff Dionne" <jeff@...esemi.io>, linux-sh@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] J2 Turtle Board fixes

On 2/27/25 01:52, John Paul Adrian Glaubitz wrote:
> Hi Artur,
> 
> On Sun, 2025-02-16 at 18:55 +0100, Artur Rojek wrote:
>> this series fixes boot issues and allows J2 Turtle Board to boot
>> upstream Linux again.
>>
>> Patch [1/2] enforces 8-byte alignment for the dtb offset.
>>
>> Patch [2/2] resolves a problem with PIT interrupts failing to register.
> 
> I can confirm that this series makes my J2 Turtle Board boot again!
> 
>> Even with the above fixes, Turtle Board is prone to occasional freezes
>> related to clock source transition from periodic to hrtimers. I however
>> decided to send those two patches ahead and debug the third issue at a
>> later time.
> 
> Yep, it just got stuck for me right after these messages at my first boot attempt:
> 
> clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
> futex hash table entries: 512 (order: 1, 8192 bytes, linear)
> NET: Registered PF_NETLINK/PF_ROUTE protocol family
> clocksource: Switched to clocksource jcore_pit_cs
> 
> It boots past these messages on second attempt, although it's now stuck trying to start
> /init. However, it's still echoing <RETURN> strokes, so it might be an issue with Toybox.

Which was fixed a year ago, which is why I told you to use the new 
toolchain with a current musl-libc:

http://lists.landley.net/pipermail/toybox-landley.net/2024-February/030040.html

Unless you're hitting the OTHER issue I fixed last year...

https://github.com/landley/toybox/commit/0b2d5c2bb3f1

Rob