[Gc] Infinite Loop in GC_clear_fl_marks

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Hi,

I'm running bdwgc 7.3 on SUSE Linux Enterprise Server 10 sp3 in an MPI
setting. One of our programs consistently (but not allways after the
same number of iterations) enters an infinite loop with the following
call stack:

GC_malloc_atomic
GC_generic_malloc_many
GC_generic_malloc_inner
GC_allocobj
GC_collect_or_expand
GC_try_to_collect_inner
GC_finish_collection
GC_clear_fl_marks <————

The for(;;) loop never terminates because q never equals null. Also
the value returned by GC_bytes_found negativ becomes negative.

Any ideas what could be going wrong here or how to get more information?

Thx,
Alex

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