read invalid data from device /dev/lirc

[<hag...@ca...>]

I am running lirc with a serial adapter to control my VDR. I used this
adapter and remote control for years. I have just upgraded my server and
doing this I also upgraded lirc to the newest version.

My problem now is. After "some days" (between 3 and 5) my remote stops
working. The only thing I can get is a "read invalid data from
device /dev/lirc"

I do also get this when running irw / mode2.

I have unloaded
- lircd
- lirc_serial / lirc_dev drivers
and again started setserial and then loaded the modules and restarted lirc
- but no way.

The only way to get working again is to reboot the machine.

Any idea? Is it a hardware problem with my serial device. I really would
like to avoid a daily restart of my server. It used to run for years
without any restart. (and yes I made the decission that running this server
24/7 - its not only runnig VDR)

any ideas are highly appreciated

Hardware
IBM Netfinity 342

Kernel 2.6.29-gentoo-r5
lircd-0.8.5 (same with 0.8.4)