after running a while lcdproc fills up the log with 20x/sec error messages

[Herco van Brug]

Binary package hint: lcdproc

the system can run correctly for days and all of a sudden the front LCD stops responding. it reports dozens of messages per second in /var/log/syslog:
Jun 6 07:57:08 lmc kernel: [402111.465184] imon 5-1:1.0: imon usb_rx_callback_intf0: status(-32): ignored
Jun 6 07:57:08 lmc kernel: [402111.473180] imon 5-1:1.0: imon usb_rx_callback_intf0: status(-32): ignored
Jun 6 07:57:08 lmc kernel: [402111.481174] imon 5-1:1.0: imon usb_rx_callback_intf0: status(-32): ignored
Jun 6 07:57:08 lmc kernel: [402111.489173] imon 5-1:1.0: imon usb_rx_callback_intf0: status(-32): ignored
Jun 6 07:57:08 lmc kernel: [402111.497174] imon 5-1:1.0: imon usb_rx_callback_intf0: status(-32): ignored

this fills up the /var partition REALLY fast and then things start to break leaving the system unstable

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: lcdproc 0.5.3-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Mon Jun 6 18:43:19 2011
InstallationMedia: Mythbuntu 11.04 "Natty Narwhal" - Release i386 (20110426)
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lcdproc
UpgradeStatus: No upgrade log present (probably fresh install)

[Herco van Brug (hercovanbrug)]

i ran 10.10 before natty with the lirc-modules-source which had a different imon kernel driver. that used to have similar problems but the later releases didnt and the system kept running for months without problems. with the update to natty the error returned.
so i could well be the kernel driver or some setting i can pass the module when it loads. (i just dont know which one)
would be nice if this would be fixed in the default kernel module or the lcdproc package, whichever causes the problem.