mr-ma

It seems like the bump allocator is the one with the memory limits — see [here](https://github.com/succinctlabs/sp1/blob/3b61ab03b2c94981575829eabed3dd87fda58a14/crates/zkvm/entrypoint/src/syscalls/memory.rs#L26-L56). Note that the panic!("Memory limit exceeded (0x78000000)") only occurs when the embedded feature is...