For things that have been done, see the changelog
In progress
Critical
__builtin_return_address() shouldnt return PSR flags? (check this)
Make sure memory is allocated right (seems to be 27/08/2003)
sort

issues
Track down THREAD_SIZE issues
Fix KERNEL_DS properly
Find the evil undef_instr bug
Non-critical
Fix uaccess to not need synchronisation of struct sizes in asm and C
Fix ptrace.h properly. it has non-trace specific stuff in it.
test loop support
Test other drivers (at least compile)
compacter code
unify a5k and arc kernel support
zImage
RTC support
1772 support (and 1772HD)
superIO (a5k)
VT bug (general kernel bug?)
Optimise the math stuff in lib/