Re: GC bug investigation

[Richard Stallman]

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    >      That
    >     we're reaching B at all indicates that it shouldn't be dead.
    >
    > I guess so.  This is the mysterious part.

    I may be missing something here, but I thought that Emacs was using a
    _conservative_ garbage collector by default.  That means that arbitrary
    garbage may mistakenly be considered as being in-use because some
    integer on the stack is misinterpreted as a pointer to it.

That is true, but it's a different question.

    > It is being marked through a spurious pointer randomly hanging around
    > in a stack slot for something else.  We don't know that there is any
    > real pointer to it.

    If that is the case, then any code supposed to work in conjunction with
    a conservative garbage collector has to able to deal with it.

Right.

The point is, if that symbol was never collected, how did 
the vector in its function cell get collected?

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Dr Richard Stallman
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