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From: John Ogness <john.ogness@linutronix.de>
To: Thierry Reding <thierry.reding@gmail.com>
Cc: Jon Hunter <jonathanh@nvidia.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Thierry Reding <treding@nvidia.com>,
	Jiri Slaby <jirislaby@kernel.org>, Petr Mladek <pmladek@suse.com>,
	Sergey Senozhatsky <senozhatsky@chromium.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Esben Haabendal <esben@geanix.com>,
	linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Arnd Bergmann <arnd@arndb.de>, Tony Lindgren <tony@atomide.com>,
	Niklas Schnelle <schnelle@linux.ibm.com>,
	Serge Semin <fancer.lancer@gmail.com>,
	"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>
Subject: Re: [PATCH tty-next v5 5/6] serial: 8250: Switch to nbcon console
Date: Thu, 09 Oct 2025 13:55:29 +0206	[thread overview]
Message-ID: <844is8qoqe.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <csyu222cbxrze5yv3qnwj3gl67x2pwkd6ichpotrwxoj7jru5h@cywpyiqycfre>

Hi Thierry,

On 2025-10-09, Thierry Reding <thierry.reding@gmail.com> wrote:
>> Thierry, do you have a Tegra124 Jetson TK1 handy to test this change on?
>
> Yes, I do. I reapplied patches 5 and 6 from the series (resolved a tiny
> conflict for patch 5) and reran the tests. Same results as back in
> January, though. Basically the first suspend doesn't work (it exits back
> to userspace after a few seconds) and the second attempt then hangs. No
> idea why that would be happpening.

[...]

> John, I'm happy to test any other patches if you've got any ideas on
> what could be wrong.

Thanks for your support. I created a branch on a public git repository
[0] so that we have a common source to work with. I will push additional
debug-commits on top.

I am taking this email-debugging-session offlist. I will post again to
this thread once we come to some conclusion.

John

[0] https://github.com/Linutronix/linux (branch nvidia/debug-8250-nbcon)

  reply	other threads:[~2025-10-09 11:49 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-07 21:26 [PATCH tty-next v5 0/6] convert 8250 to nbcon John Ogness
2025-01-07 21:26 ` [PATCH tty-next v5 1/6] serial: 8250: Adjust the timeout for FIFO mode John Ogness
2025-01-07 21:26 ` [PATCH tty-next v5 2/6] serial: 8250: Use frame time to determine timeout John Ogness
2025-01-13  9:54   ` Andy Shevchenko
2025-01-07 21:26 ` [PATCH tty-next v5 3/6] serial: 8250: Use high-level writing function for FIFO John Ogness
2025-01-07 21:27 ` [PATCH tty-next v5 4/6] serial: 8250: Provide flag for IER toggling for RS485 John Ogness
2025-01-07 21:27 ` [PATCH tty-next v5 5/6] serial: 8250: Switch to nbcon console John Ogness
2025-01-09 16:13   ` Petr Mladek
2025-01-15 16:21   ` Jon Hunter
2025-01-15 16:54     ` John Ogness
2025-01-16 10:27       ` Jon Hunter
2025-01-16 10:38         ` John Ogness
2025-01-16 10:41           ` Jon Hunter
2025-01-20 16:23             ` Thierry Reding
2025-01-20 16:34               ` Thierry Reding
2025-01-27 14:54                 ` Jon Hunter
2025-01-27 15:20                   ` Petr Mladek
2025-01-27 15:21                   ` John Ogness
2025-01-27 16:13                     ` Jon Hunter
2025-10-08 15:56     ` John Ogness
2025-10-08 19:21       ` Jon Hunter
2025-10-09 10:04         ` Thierry Reding
2025-10-09 11:49           ` John Ogness [this message]
2025-10-09 12:54           ` Petr Mladek
2025-01-07 21:27 ` [PATCH tty-next v5 6/6] serial: 8250: Revert "drop lockdep annotation from serial8250_clear_IER()" John Ogness
2025-01-09 16:13   ` Petr Mladek

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