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From: Mark Brown <broonie@kernel.org>
To: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>
Subject: Re: [PATCH v1 1/1] serial: core: Restore sysfs fwnode information
Date: Thu, 18 Dec 2025 16:54:42 +0000	[thread overview]
Message-ID: <713aa37f-161d-4f08-9417-d7d2abdcdfd9@sirena.org.uk> (raw)
In-Reply-To: <265b9083-d744-4438-b539-9e001f2138ba@samsung.com>

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On Thu, Dec 18, 2025 at 04:29:55PM +0100, Marek Szyprowski wrote:
> On 27.11.2025 17:36, Andy Shevchenko wrote:
> > The change that restores sysfs fwnode information does it only for OF cases.
> > Update the fix to cover all possible types of fwnodes.

> This patch landed in today's linux-next as commit 24ec03cc5512 ("serial: 
> core: Restore sysfs fwnode information"). In my tests I found that it 
> breaks booting of most of my test boards (ARM 32 and 64 bit). 
> Unfortunately I cannot provide anything useful besides the information 
> that booting stops and system doesn't reach shell. There is nothing 
> suspicious in the kernel logs. I suspect a memory trashing. Reverting 
> $subject on top of linux-next fixes booting.

I'm also seeing this in my lab and Arm's lab, there are a few systems
that survive but it's a small minority.

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  reply	other threads:[~2025-12-18 16:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-27 16:36 Andy Shevchenko
2025-11-27 19:07 ` Greg Kroah-Hartman
2025-12-18 13:50 ` Cosmin Tanislav
     [not found] ` <CGME20251218152957eucas1p196470bc80be0d8a4037edfe6e53f3d13@eucas1p1.samsung.com>
2025-12-18 15:29   ` Marek Szyprowski
2025-12-18 16:54     ` Mark Brown [this message]
2025-12-22 10:55       ` Marek Szyprowski
2025-12-29  3:18         ` Dmitry Baryshkov
2025-12-29 12:38           ` Andy Shevchenko

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