On 14 March 2017 at 12:21, John Lenton <john.len...@canonical.com> wrote:

> On 13 March 2017 at 21:05, Michael Hudson-Doyle
> <michael.hud...@canonical.com> wrote:
> > If I add a
> > time.Sleep(1*time.Millisecond) to a_go.go before the exec, the setuid bit
> > is respected every time.
>
> on my way to bed, I'll give your response a proper read in the
> morning, but note that my reproducer causes the issue a lot more
> frequently than in "the real world" (snap run calling snap-confine
> calling snap-exec), where delays are happening naturally (because the
> programs aren't just calling exec, they actually have work to do :-p).
> I don't have numbers for how often it happens in snappy; it's a lot
> less frequent, but often enough to be annoying when working
> interactively (and there are bug reports with these warnings/errors in
> lp already).


Oh yes, the sleep was just to allow the other threads to settle in the test
case program. It's not a solution for the real world at all.

Cheers,
mwh
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