Re: [Chicken-users] Calling out to C causing hang

[Tony Garnock-Jones]

> Perhaps the interrupt-handling code somehow triggers an interrupt itself.
> Are you using finalizers? Or multithreading?

I am using finalizers heavily in the gtk+2.0 stuff. In fact tweaking the 
way finalizers work causes the bug to move around a bit.

It's a bit of a heisenbug unfortunately :-( - it's very sensitive to 
initial conditions...

> The best way of tackling this seems to be to walk through the whole
> thing with gdb, setting breakpoints in handle_interrupt and 
> C_raise_interrupt
> (and C_reclaim). It would be nice if you could send me the gdb output 
> starting
> from the point where handle_interrupt is called and up to the minor GC
> loop.

Wow. For me, that's a big ask - the GTK+ stuff was locking up on the 
final GC before exit...

Tony