Comment 113 for bug 286285

I got the same problem (and the one with kernel panics from the intel wifi), but it seems to be solved too.

jems@jems-microlaptop:~$ dpkg -l | grep linux
ii linux-backports-modules-2.6.27-7-generic 2.6.27-7.4 Ubuntu supplied Linux modules for version 2.
ii linux-backports-modules-intrepid 2.6.27.7.11 Generic Linux backported drivers.
ii linux-backports-modules-intrepid-generic 2.6.27.7.11 Backported drivers for generic kernel image
ii linux-firmware 1.2 Firmware for Linux kernel drivers
ii linux-generic 2.6.27.7.11 Complete Generic Linux kernel
ii linux-image-2.6.27-7-generic 2.6.27-7.16 Linux kernel image for version 2.6.27 on x86
ii linux-image-generic 2.6.27.7.11 Generic Linux kernel image
ii linux-restricted-modules-2.6.27-7-generic 2.6.27-7.12 Non-free Linux kernel modules for version 2.
ii linux-restricted-modules-common 2.6.27-7.12 Non-free Linux 2.6.27 modules helper script
ii linux-restricted-modules-generic 2.6.27.7.11 Restricted Linux modules for generic kernels

Now I've got no more kern.log growing too fast, nor kernel panics caused by the wifi.