Re: Emacs WIN32 crashes on reinitialzing of lisp process using slime

[Jason Rumney]

Jason Rumney wrote:
> I have narrowed down the crash to a call to free_buffer_text(b) on 
> line 4967 of buffer.c. It seems to be inlined, so in the stack trace 
> it claims to be in Fkill_buffer, but the line number appears to be 
> correct, as there is a call to r_alloc_free on that line, which is 
> where the abort is coming from, apparently because b->text->beg (which 
> we are freeing) is NULL.
>
> Changing r_alloc_free to handle freeing NULL silently will get rid of 
> the crash, but may disguise other bugs.

Further investigation shows that the kill-buffer is called recursively 
on the same buffer in slime-net-close, due to the hooks calling 
slime-net-sentinel which in turn calls slime-net-close again.

So a simple test case can probably be found by trying to reproduce that 
recursion.