Hi

Idea: a module allocates memory (vmalloc) for userspace program which 
then craches.
Due to lack of activity timer is  expires and free's the unused memory 
(vfree).
(see tc_core.c later in this mail for details)

Problem: when timer expires and vfree is called then kernel crashes -
or rather freezes silently.

Can anyone explain why this happens? a kernel bug?

Cheers
    Mikkel

kernel 2.6.5