From: John Ogness <john.ogness@linutronix.de>
To: Imre Kaloz <kaloz@kernel.org>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
linux-serial@vger.kernel.org, Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Sergey Senozhatsky <senozhatsky@chromium.org>
Subject: Re: [PATCH v2] MIPS: SGI-IP27: print the NMI dump on an nbcon console
Date: Thu, 01 Oct 2026 22:01:04 +0206 [thread overview]
Message-ID: <875wzl8acn.fsf@jogness.linutronix.de> (raw)
In-Reply-To: <20261001191938.3256-1-kaloz@kernel.org>
On 2026-10-01, Imre Kaloz <kaloz@kernel.org> wrote:
> Since the 8250 console became nbcon, printk() in nmi_dump() only queues
> records for a printer thread that never runs, as no CPU leaves the NMI
> handler. Print from an emergency section and flush pending records
> before the hub reset.
>
> Fixes: d3539347022a ("serial: 8250: Switch to nbcon console, take 2")
> Signed-off-by: Imre Kaloz <kaloz@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
next prev parent reply other threads:[~2026-10-01 19:55 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-01 19:19 [PATCH v2] MIPS: SGI-IP27: print the NMI dump on an nbcon console Imre Kaloz
2026-10-01 19:55 ` John Ogness [this message]
2026-10-02 7:27 ` Petr Mladek
2026-10-02 9:30 ` Greg Kroah-Hartman
2026-10-02 9:13 ` sashiko-bot
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