Tests under valgrind.

[John Darrington]

Here are the results of my make check-valgrind which I ran last night.  This
was without the --leak-check flag, so we're looking only at problems which
might cause crashes.


A total of 25 tests showed problems. There are nos:

079 104 172 173 174 175 176 177 178 179 180 181 182 183 398 412 413 414 415 416 
417 418 419 420 449

However, it looks like there are only 5 or 6 causes.  Here are the top lines of 
the call stacks:

==22558==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==12519==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12859==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==22748==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==12902==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==23939==    at 0x415279C: case_unref (case.h:141)
==12562==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12648==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12730==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==6087==    at 0x4179BCF: text_parse_counted_string (sys-file-reader.c:2444)
==6039==    at 0x4179BCF: text_parse_counted_string (sys-file-reader.c:2444)
==22482==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==22710==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==22672==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==21917==    at 0x44C42EF: gsl_histogram_accumulate (in 
/usr/lib/libgsl.so.0.15.0)
==12773==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12689==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12476==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==12943==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==22786==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==8737==    at 0x4179DDD: text_match (sys-file-reader.c:2491)
==8689==    at 0x4179DDD: text_match (sys-file-reader.c:2491)
==12816==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)
==22520==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==22634==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==22596==    at 0x40ECFA9: categoricals_done (categoricals.c:508)
==12605==    at 0x4670A2E: inflateReset2 (in /usr/lib/libz.so.1.2.3.4)

I'll see if I can track down the inflateReset2 and the categoricals_done 
problems.  The
others look like there are Ben's area of expertise, so I'll leave those for now.

J'

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