CRITICAL overflow from utask_fixup_stack_len #3
utask_fixup_stack_len rounds the wrong way, causing us to take more stack if the length isn't a multiple of 4, not less. Only an issue if someone tries to define a stack with a length that isn't a multiple of 4, but a critical issue if they do.
Deleting a branch is permanent. Although the deleted branch may exist for a short time before cleaning up, in most cases it CANNOT be undone. Continue?