https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85620
H.J. Lu <hjl.tools at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |UNCONFIRMED Resolution|INVALID |--- --- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> --- Technically, swapcontext only returns once, but not when it is called. In that sense, it returns twice.