linux-kernel - Re: Serial ports rearranged in 2.6.22?

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 11 Aug 2007 17:49:25 +0200
From:	Michael Mauch <michael.mauch@....de>
To:	linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org,
	Bjorn Helgaas <bjorn.helgaas@...com>
Subject: Re: Serial ports rearranged in 2.6.22?

Yinghai Lu wrote:

> On 8/10/07, Michael Mauch <michael.mauch@....de> wrote:
> > Hi,
> >
> > until 2.6.21, I had the normal assignments for ttyS0 and ttyS1:
> >
> > 00:08: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
> > 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> >
> > With 2.6.22 I get the names <-> ports/irqs the other way around:
> >
> > 00:08: ttyS0 at I/O 0x2f8 (irq = 3) is a 16550A
> > 00:09: ttyS1 at I/O 0x3f8 (irq = 4) is a 16550A
> >
> > Is this supposed to be that way? Should we reassign these names with
> > udev? udev-114 doesn't seem to have built-in rules to assign the
> > traditional names.
> >
> > Or could it be related to some brokeness in my BIOS (ACPI/PNP)?
> >
> > I'm using the 8250_pnp module (and it's the same with builtin serial
> > modules). I made sure that I did not accidentally change the BIOS
> > settings for the serial ports.
> >
> > I'm using Gentoo, but on the lirc list was a Fedora user with the same
> > symptoms.
> 
> http://lkml.org/lkml/2007/7/25/455

Thanks - I applied that patch and the names are back to normal again:

00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
00:07: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A

Regards...
		Michael
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/