Distribution: debian testing
Hardware Environment: IBM ThinkPad R40 (2722-B3G)
Software Environment:
Problem Description:
While booting, an EC GPE gets queued for execution by acpi_ec_gpe_handler(). 
After that, ec_ecdt is kfree()d in acpi_ec_add(). After that, 
acpi_ec_gpe_query() is called, and given the already kfree()d ec_ecdt as 
parameter. In 2.6.6-rc3 this leads to a panic. In previous versions, this just
rendered some other error in acpi_ec_read().

I for me just commented out that kfree(ec_ecdt); and it doesn't panic anymore, 
but I think there must be some better way.

Steps to reproduce:
compile kernel with acpi, boot