gdb_result

ayush@ayush:~/Desktop/xapian-patch/xapian/xapian-letor/bin$ libtool --mode=execute gdb --args ./xapian-prepare-trainingfile --db=/home/ayush/Documents/data/db /home/ayush/Documents/data/query.txt /home/ayush/Documents/data/qrel.txt /home/ayush/Documents/data/sample3.txt
GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.04) 7.11.1
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Reading symbols from /home/ayush/Desktop/xapian-patch/xapian/xapian-letor/bin/.libs/lt-xapian-prepare-trainingfile...done.
(gdb) run
Starting program: /home/ayush/Desktop/xapian-patch/xapian/xapian-letor/bin/.libs/lt-xapian-prepare-trainingfile --db=/home/ayush/Documents/data/db /home/ayush/Documents/data/query.txt /home/ayush/Documents/data/qrel.txt /home/ayush/Documents/data/sample3.txt
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Done
Done1
Machine Learning 16 20001

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff792ad80 in TermGroup::as_group (this=0x626ed0,
    state=state@entry=0x7fffffffd2e0) at queryparser/queryparser.lemony:1586
1586		    if (stopper && (*stopper)((*i)->name)) {
(gdb) backtrace
#0  0x00007ffff792ad80 in TermGroup::as_group (this=0x626ed0,
    state=state@entry=0x7fffffffd2e0) at queryparser/queryparser.lemony:1586
#1  0x00007ffff792cc1e in yy_reduce (yypParser=yypParser@entry=0x626e30,
    yyruleno=37) at queryparser/queryparser.lemony:2116
#2  0x00007ffff792dbdb in Parse (yypParser=yypParser@entry=0x626e30,
    yymajor=yymajor@entry=0, yyminor=yyminor@entry=0x0,
    state=state@entry=0x7fffffffd2e0)
    at queryparser/queryparser_internal.cc:3142
#3  0x00007ffff792f44a in Xapian::QueryParser::Internal::parse_query (
    this=0x627060, qs="Machine Learning", flags=flags@entry=135,
    default_prefix="") at queryparser/queryparser.lemony:1390
#4  0x00007ffff7925a54 in Xapian::QueryParser::parse_query (
    this=this@entry=0x7fffffffd5f0, query_string="Machine Learning",
    flags=flags@entry=135, default_prefix="") at queryparser/queryparser.cc:165
#5  0x00007ffff7bca857 in Xapian::prepare_training_file (
    db_path="/home/ayush/Documents/data/db",
    queryfile="/home/ayush/Documents/data/query.txt",
    qrel_file="/home/ayush/Documents/data/qrel.txt",
    msetsize=msetsize@entry=10,
    filename="/home/ayush/Documents/data/sample3.txt", flist=...)
    at ranker/ranker.cc:277
#6  0x00000000004013a9 in main (argc=<optimized out>, argv=<optimized out>)
    at bin/xapian-prepare-trainingfile.cc:108
(gdb) frame 3
#3  0x00007ffff792f44a in Xapian::QueryParser::Internal::parse_query (
    this=0x627060, qs="Machine Learning", flags=flags@entry=135,
    default_prefix="") at queryparser/queryparser.lemony:1390
1390		Parse(pParser, 0, NULL, &state);
(gdb) print pParser
$1 = {parser = 0x626e30}
(gdb) print state
$2 = {qpi = 0x627060, query = {internal = {px = 0x0}, static MatchNothing = {internal = {px = 0x0},
      static MatchNothing = <same as static member of an already seen type>, static MatchAll = {internal = {px = 0x614c20},
        static MatchNothing = <same as static member of an already seen type>,
        static MatchAll = <same as static member of an already seen type>}},
    static MatchAll = <same as static member of an already seen type>}, error = 0x0, flags = 135}