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

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Message-ID: <f574808500e2c5fb733c1e5d9b4d17c2884d1b9f.camel@physik.fu-berlin.de>
Date: Thu, 27 Feb 2025 08:52:09 +0100
From: John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>
To: 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>, Rob Landley <rob@...dley.net>,
 linux-sh@...r.kernel.org, 	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] J2 Turtle Board fixes

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.

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913