Re: [Gc] Allowing SIGINT during garbage collection may result in deadlock
ivmai at mail.ru
Tue Apr 20 01:31:18 PDT 2010
Tue, 20 Apr 2010 09:57:04 +0200 Juan Jose Garcia-Ripoll <juanjose.garciaripoll at googlemail.com>:
> 2010/4/20 Ivan Maidanski <ivmai at mail.ru>
> > Most GC functions are not re-entrant (e.g. which do locking), so if you
> > call a GC function from an async signal, you should do signal blocking
> > (deferring) in every non-reentrant GC API function (instead of doing it for
> > garbage collections), right?
> It is not safe to call _almost_ _any_ function from a signal handler, not
> even malloc()
> Signal handlers are useless in that respect, except for sending messages to
> threads that actually do the job.
So, mono is broken in this respect.
> Please do not make the garbage collector block signals by default.
Agreed not to do it ;)
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