https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67037
--- Comment #12 from Richard Earnshaw <rearnsha at gcc dot gnu.org> --- (In reply to notasas from comment #11) > FWIW I've tried sending a backport patch, but it was ignored: > https://gcc.gnu.org/ml/gcc-patches/2015-10/msg03116.html If you don't get a response from a maintainer (which can happen if there's no clear owner) in a reasonable time frame then pings at intervals no more frequent than 1 week are reasonable. For back-ports it also helps to CC the release maintainers.