Re: MPS GC and its implications

[Helmut Eller]

>> Memory barriers could be used for synchronization.  When the mutator
>> hits a barrier, it executes the signal handler.  The signal handler asks
>> the collector what to do.  Essentially synchronizing those two.
>
> If this happens, I should have seen GDB intercept the exception and
> kick in.  But it doesn't.  (It also would have slowed the program
> quite a lot, I think.)

Don't call igc--collect and do something to generate enough garbage.
Then you'll see it.