"Julian Graham" <joolean@gmail.com> writes:

>> > Let me know if I've missed anything.
>>
>> I don't think so, and I plan to apply this very soon.  I've found a
>> reliable recipe for reproducing the critical section problem: if a
>> scm_i_gc call is added to make_jmpbuf (), like this:
>
>
> Excellent -- I'll let you know if I can think of a deterministic way
> to reproduce that from user code.

Thanks.  I've decided to give up on this for now, and just check in
the fix.

I was playing with code like the attached patch - which I think is
already more effort than it's worth spending to be able to regressibly
test this :-) - and then I found that even this doesn't work reliably.
To be precise, it hangs every time when run under GDB, but not when
run outside GDB.

So I think the wise course is to accept that there are some things we
can't write tests for.