[R] Segmentation fault
Peter Dalgaard BSA
p.dalgaard at biostat.ku.dk
Sun Nov 4 15:19:22 CET 2001
Göran Broström <gb at stat.umu.se> writes:
> Dear R-afficionados,
> I have made a package that uses compiled C code, and I use the
> Calloc/Free mechanism in that code. When I run a function calling
> the C code, everything is fine, but when I run it once more I get
> ('R -d gdb', RH 7.2, R-1.3.1):
> > te()
> Program received signal SIGSEGV, Segmentation fault.
> RunGenCollect (size_needed=41992) at memory.c:1007
> 1007 SEXP next = NEXT_NODE(s);
> My guess is that I haven't Free'd enough in the C code. Before I start
> searching, I would like to have an expert opinion. Could the reason be
> something else?
That should just give you a memory leak where some memory is not
returned to the system.
More likely, you Free'd something that wasn't Calloc'd...
You might want to try a gc() immediately after the first call to te()
or turning on gctorture().
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907
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