b39d851dcb
loaded modules (pass 0/false for the can_lock arg). Searching the unwind info in modules acquires an exclusive sxlock, and the stack(9) functions can be called in a context where unbounded sleeps are forbidden (such as from the witness checkorder code). Just ignoring the existence of modules in stack_save() is not ideal, so I'm looking for a better solution, but this commit will make it possible to boot an ARM kernel with WITNESS enabled again, until I get something better. PR: 242200