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Russ Allbery wrote:
> That's probably the next step, but before doing that, could you provide a
> backtrace here:
>
> of a gnubg built with debugging symbols? Maybe it's something simple and
> I can also provide a patch upstream.
I've included a backtrace using gnubg built from the latest CVS
source. Please let me know if this isn't what you're looking for; I'm
not too handy with gdb.
I may not have mentioned before that the SGF I am loading is already
fully analyzed, so I don't think that's the problem here. The bug
appears to be independent of the match being added to the database.
I should also add that this particular problem only occurs for me when
gnubg is built for amd64. The i386 package in sid (and CVS built for
i386) segfault on some other postgres operations, which may or may not
be related. I can dig up more info on those if you believe it will be
helpful.
cmr
GNU gdb 6.4.90-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and
you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for
details.
This GDB was configured as "x86_64-linux-gnu".
(gdb) file /usr/local/bin/gnubg
Reading symbols from /usr/local/bin/gnubg...done.
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) set args -qt gnubg-chris_7p_2006-10-29.sgf
(gdb) run
Starting program: /usr/local/bin/gnubg -qt gnubg-chris_7p_2006-10-29.sgf
[Thread debugging using libthread_db enabled]
[New Thread 47957168375168 (LWP 25089)]
GNU Backgammon 0.14.3-develCopyright 1999, 2000, 2001, 2002, 2003,
2004 by Gary Wong.
GNU Backgammon is free software, covered by the GNU General Public License
version 2, and you are welcome to change it and/or distribute copies of it
under certain conditions. Type "show copying" to see the conditions.
There is absolutely no warranty for GNU Backgammon. Type "show
warranty" for
details.
GNU Backgammon Position ID: AAAAvgMAAAAAAA
Match ID : UgrgAIAAIAAA
+13-14-15-16-17-18------19-20-21-22-23-24-+ O: gnubg
| | | | OOO 8 points
| | | | OOO
| | | | OOO
| | | | OOO
| | | | OOO
v| |BAR| | 7 point match
| | | X | X
| | | X | X
| | | X X | X
| | | X X | XX
| | | X X | XX 4 points
+12-11-10--9--8--7-------6--5--4--3--2--1-+ X: chris (Cube: 4)
(Game over) relational test
Database test is successful!
(Game over) relational add match
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47957168375168 (LWP 25089)]
0x00002b9de4a2d570 in strlen () from /lib/libc.so.6
(gdb) bt all
#0 0x00002b9de4a2d570 in strlen () from /lib/libc.so.6
#1 0x000000000058b2a7 in do_mkvalue ()
#2 0x000000000058b0a1 in do_mkvalue ()
#3 0x000000000058b660 in Py_VaBuildValue ()
#4 0x000000000058b8fb in Py_BuildValue ()
#5 0x00000000005078f0 in PyGameStats (sc=0xd91380, fIsMatch=0,
nMatchTo=7)
at gnubgmodule.c:1558
#6 0x0000000000508baa in PythonGame (plGame=0xcaa710, doAnalysis=0,
verbose=0,
scMatch=0x7fffc976ee80, includeBoards=0, ms=0x7fffc976f030) at
gnubgmodule.c:1735
#7 0x0000000000509daa in PythonMatch (self=<value optimized out>,
args=<value optimized out>, keywds=<value optimized out>) at
gnubgmodule.c:2118
#8 0x0000000000569e1c in PyEval_EvalFrame ()
#9 0x000000000056a828 in PyEval_EvalCodeEx ()
#10 0x00000000005b6c83 in function_call ()
#11 0x000000000050fec0 in PyObject_Call ()
#12 0x0000000000515d9e in instancemethod_call ()
#13 0x0000000000512263 in PyObject_CallMethod ()
#14 0x00000000004b11d5 in CommandRelationalAddMatch (sz=0x7fffc97722a4 "")
at relational.c:444
#15 0x000000000044128f in HandleCommand (sz=0x7fffc97722a4 "",
ac=<value optimized out>) at gnubg.c:2946
#16 0x00000000004413c8 in HandleCommand (sz=0x7fffc977229f "match",
ac=<value optimized out>) at gnubg.c:2950
#17 0x00000000004413c8 in HandleCommand (sz=0x7fffc977229b "add",
ac=<value optimized out>) at gnubg.c:2950
#18 0x000000000044478a in main (argc=2, argv=0x7fffc9772ec8) at
gnubg.c:7555
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