[bug #21483] mandelbug whit GUILE_DEBUG_MALLOC

[bug #21483] mandelbug whit GUILE_DEBUG_MALLOC

[Neil Jerram]

URL:
  <http://savannah.gnu.org/bugs/?21483>

                 Summary: mandelbug whit GUILE_DEBUG_MALLOC
                 Project: Guile
            Submitted by: ossau
            Submitted on: Wednesday 10/31/07 at 00:31
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Ciao,

just for the record, because I think that it is
unlikely that I or someone will succeed in fixing it.

It appears to me that there
is a problem in 'scm_malloc_reregister()', file
"libguile/debug-memory.c", which is invoked by
'scm_gc_realloc()' only when Guile is compiled
with 'GUILE_DEBUG_MALLOC' defined.

It tells me that I am trying to reallocate a block
with a different "what" string.

It comes and goes, but for the small code
evolution span in which it was reproducible: I was
able to determine that I was using the same
"what".

I circumvented it, it seems, by using the same
"what" in two different invocations to
"scm_gc_realloc()".

Understanding what is going on requirers
understanding the hash table handling, which is
a little mess IMHO, and it is above my head now. 

-- 
Marco Maggi





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