Re: kernel tainted/device busy for ttyS1?

[francis b. <fra...@gm...>]

The quick answer is that you need to disable standard serial port, try that
before loading your driver:

setserial /dev/ttyS0 uart none
setserial /dev/ttyS1 uart none

and try it again



On 2/6/06, John Brooks <ire...@gm...> wrote:
>
> Hi, all. I've been trying to look into this a little further before
> posting, and here's what I have.
>
> I am using Ubuntu Breezy Badger with the 2.6.12-10-k7 kernel. I
> configured, then did make and make install for lirc 0.8.0.
>
> I created /etc/modprobe.d/lirc:
> ###
> install lirc_sir /usr/local/sbin/smcinit; /sbin/modprobe --ignore-install
> lirc_sir
> alias char-major-61 lirc_sir
> options lirc_sir io=3D0x3f8 irq=3D4
> ###
>
> It does not come up with lirc_sir at startup, though, and when I go to
> modprobe it, I get the following error (and corresponding output in dmesg=
)
>
> sh: /usr/local/sbin/smcinit: No such file or directory
> FATAL: Error inserting lirc_sir
> (/lib/modules/2.6.12-10-k7/misc/lirc_sir.ko): Device or resource busy
> FATAL: Error running install command for lirc_sir
>
> from dmesg:
> lirc_dev: IR Remote Control driver registered, at major 61
> lirc_sir: no version for "lirc_unregister_plugin" found: kernel tainted.
> lirc_dev: lirc_register_plugin: sample_rate: 0
> lirc_sir: i/o port 0x03f8 already in use.
>
> According to fuser, irattach has grabbed ttyS1 yet again:
>
> root      7655  0.0  0.0   1544   492 ?        S    14:12   0:00
> /usr/sbin/irattach /dev/ttyS1 none -s
>
> I'm assuming that's why 0x3f8 is busy.
>
> Can anyone help me out here? I'm really lost... thanks.
>