Error in FastIO:Copy (possibly similar to Issue 4)

[GoogleCodeExporter]

I am getting an error very similar to the -i CM case in Issue 4, with
failure the Copy function (though I get it while copying the lm during
smoothing). This happens during the 6th pass through, and only with -o6
(not -o5) and only on a 300+meg text, so it seems like it might be a memory
issue of some sort.

Starting program: /data/homes/benp/lmlowdata/mitlm.0.4~/estimate-ngram -t
spec.txt -wc spec.counts -o 6
Loading corpus all-Podiatry-all-all.txt...
Smoothing[1] = ModKN
Smoothing[2] = ModKN
Smoothing[3] = ModKN
Smoothing[4] = ModKN
Smoothing[5] = ModKN
Smoothing[6] = ModKN
Set smoothing algorithms...

Program received signal SIGSEGV, Segmentation fault.
KneserNeySmoothing::Initialize (this=0x86d7fe8, pLM=0xbfffb9c0, order=6) at
src/util/FastIO.h:56
56         *begin = *input;
(gdb) bt
#0  KneserNeySmoothing::Initialize (this=0x86d7fe8, pLM=0xbfffb9c0,
order=6) at src/util/FastIO.h:56
#1  0x08074743 in NgramLM::SetSmoothingAlgs (this=0xbfffb9c0,
smoothings=@0xbfffb71c) at src/NgramLM.cpp:287
#2  0x0807747b in NgramLM::Initialize (this=0xbfffb9c0, vocab=0x0,
useUnknown=false, text=0xbfffd160 "all-Podiatry-all-all.txt", counts=0x0,
    smoothingDesc=0x80c8986 "ModKN", featureDesc=0x0) at src/NgramLM.cpp:225
#3  0x0804daa9 in main (argc=Cannot access memory at address 0x0
) at src/estimate-ngram.cpp:120

Original issue reported on code.google.com by peppe...@gmail.com on 3 Mar 2009 at 11:03