linux-kernel - Re: 2.6.25.3: serial problem (minicom)

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Message-ID: <20080517082207.4b1e8556@osprey.hogchain.net>
Date:	Sat, 17 May 2008 08:22:07 -0500
From:	Jay Cliburn <jacliburn@...lsouth.net>
To:	Chris Rankin <rankincj@...oo.com>
Cc:	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Subject: Re: 2.6.25.3: serial problem (minicom)

On Sat, 17 May 2008 13:29:31 +0100 (BST)
Chris Rankin <rankincj@...oo.com> wrote:

> --- Jay Cliburn <jacliburn@...lsouth.net> wrote:
> > Serial console using minicom works fine for me under 2.6.25 and
> > 2.6.25.4.  Keystrokes are accepted normally.
> 
> I have just replicated this problem between two Fedora 8 boxes;
> minicom reads the remote serial console fine, provided it is running
> on a 2.6.24.x kernel. (The serial console is from a 2.6.25.4 machine.)
> 
> My serial console is defined using the kernel parameters
> "console=ttyS0,115200n8", and my minicom session as:
> 
> pr port             /dev/ttyS1
> pu baudrate         115200
> pu bits             8
> pu parity           N
> pu stopbits         1
> #pu minit            ^M

Mine still works.  I was going to bisect it, but I don't encounter the
problem.

[jcliburn@...rrow ~]$ uname -a
Linux sparrow 2.6.25.4 #1 SMP Fri May 16 11:31:19 CDT 2008 i686 i686 i386 GNU/Linux

[jcliburn@...rrow ~]$ cat /etc/fedora-release 
Fedora release 8 (Werewolf)

[jcliburn@...rrow ~]$ cat /etc/minirc.dfl 
# Machine-generated file - use "minicom -s" to change parameters.
pu port             /dev/ttyS0
pu baudrate         38400
pu bits             8
pu parity           N
pu stopbits         1

jcliburn@...rrow ~]$ grep CONFIG_SERIAL linux-2.6.25.y.git/.config
CONFIG_SERIAL_NONSTANDARD=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_PCI=y
CONFIG_SERIAL_8250_PNP=y
CONFIG_SERIAL_8250_CS=m
CONFIG_SERIAL_8250_NR_UARTS=32
CONFIG_SERIAL_8250_RUNTIME_UARTS=4
CONFIG_SERIAL_8250_EXTENDED=y
CONFIG_SERIAL_8250_MANY_PORTS=y
# CONFIG_SERIAL_8250_FOURPORT is not set
# CONFIG_SERIAL_8250_ACCENT is not set
# CONFIG_SERIAL_8250_BOCA is not set
# CONFIG_SERIAL_8250_EXAR_ST16C554 is not set
# CONFIG_SERIAL_8250_HUB6 is not set
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_JSM=m

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