For mysterious reasons I still double boot sometimes into Windows.
My problem is that I fear that information may leak because the RAM memory is accessible to Windows. (the Linux partitions are encrypted and the bootmedia is not inserted, though).
Is there a way to setup (in a recent kernel and GNU/Linux based system) a way to have the kernel wipe the memory at shutdown?
Also since LUKS plays an important role, does it wipe its memory at shutdown to avoid leakage and also "cold boot attack"?
kexec
command. The idea anyways seems smart, the replacement kernel might be very small, as all it needs to do is to wipe the RAM. Being small it blocks/exempts itself much RAM from being wiped. Do you want to expand the comment to an answer I can accept?