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Message-ID: <20220228110559.2a8e0b32@gandalf.local.home> Date: Mon, 28 Feb 2022 11:05:59 -0500 From: Steven Rostedt <rostedt@...dmis.org> To: Wander Costa <wcosta@...hat.com> Cc: Sergey Senozhatsky <senozhatsky@...omium.org>, LKML <linux-kernel@...r.kernel.org>, Petr Mladek <pmladek@...e.com>, John Ogness <john.ogness@...utronix.de>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Wander Lairson Costa <wander@...hat.com>, Willy Tarreau <w@....eu>, David Laight <David.Laight@...lab.com> Subject: Re: Strange output on the console On Sat, 26 Feb 2022 08:49:45 -0300 Wander Costa <wcosta@...hat.com> wrote: > Hi Steve and Sergey, > > Could you please tell the serial controllers in your hardware? Not sure how to find that information, but I tried ;-) On one machine, lspci gives: 00:16.3 Serial controller: Intel Corporation 7 Series/C210 Series Chipset Family KT Controller (rev 04) and dmidecode gives: Handle 0x0023, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: VGA/COMA Internal Connector Type: None External Reference Designator: COMA External Connector Type: DB-9 male Port Type: Serial Port 16550A Compatible Handle 0x0024, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: COMB Internal Connector Type: Proprietary External Reference Designator: COMB External Connector Type: DB-9 male Port Type: Serial Port 16550A Compatible On another machine, there's nothing in lspci, and dmidecode gives: Handle 0x0007, DMI type 8, 9 bytes Port Connector Information Internal Reference Designator: J2A2A Internal Connector Type: None External Reference Designator: COM A External Connector Type: DB-9 male Port Type: Serial Port 16550A Compatible and dmesg has: Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A Anything else I could do to find out more? -- Steve
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