mouse not always detected in release 11.12 pandaboard

Hi,

i am using linaro android release 11.12 on Pandaboard. I only added some printk statements in kernel and found that the mouse/keyboard is not consistently working. sometimes the mouse cannot be detected but sometimes it is OK, depending on each compilation with my printk changes.

has anyone seen this similar unstable mouse/keyboard issue? and is there any mouse/keyboard related fix in the newer release? where could I find more info about what are changes in the new release?

Thanks!