Ruby

merge revision(s) 15e23312f6abcbf1afc6fbbf7917a57a0637f680: [Backport #16809]

 Rework the order of operations to avoid stack smashing. --- coroutine/copy/Context.c | 59 ++++++++++++++++++++++++++++++++---------------- 1 file changed, 40 insertions(+), 19 deletions(-)