Skip to main content Module kernel Copy item path Source errno raw Errno Exact value observed in the thread-local errno slot after a rejected syscall. Invalid The exact scalar rejected by one native result domain. Value A nonnegative result admitted at the syscall boundary. Diagnostic Canonical kernel-operation and descriptor-table failures for every backend.
Diagnostics retain the backend’s exact failure without a second error domain. Fatal Native failures that prevent releasing worker or driver storage, or an armed watchdog. Returned Exact native result rejected by an operation’s completion contract. Source Native kernel outcomes retained without erasing their operation or payload.