On Wed, Apr 07, 2021 at 04:29:12PM +0200, Christoph Müllner wrote: > Further, it is not the case that RISC-V has no guarantees at all. > It just does not provide a forward progress guarantee for a > synchronization implementation, > that writes in an endless loop to a memory location while trying to > complete an LL/SC > loop on the same memory location at the same time.
Userspace can DoS the kernel that way, see futex.
