ok, i understand this column
here is the backtrace :
(i'm running debian 4.0, 32bit)
$ gdb bin/hobbitd_rrd tmp/core
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 "i486-linux-gnu"...Using host libthread_db
library "/lib/tls/i686/cmov/libthread_db.so.1".
warning: Can't read pathname for load map: Input/output error.
Reading symbols from /usr/lib/librrd.so.2...done.
Loaded symbols for /usr/lib/librrd.so.2
Reading symbols from /usr/lib/libpng12.so.0...done.
Loaded symbols for /usr/lib/libpng12.so.0
Reading symbols from /usr/lib/libpcre.so.3...done.
Loaded symbols for /usr/lib/libpcre.so.3
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/lib/i686/cmov/libssl.so.0.9.8...done.
Loaded symbols for /usr/lib/i686/cmov/libssl.so.0.9.8
Reading symbols from /usr/lib/i686/cmov/libcrypto.so.0.9.8...done.
Loaded symbols for /usr/lib/i686/cmov/libcrypto.so.0.9.8
Reading symbols from /lib/tls/i686/cmov/libc.so.6...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /usr/lib/libfreetype.so.6...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libart_lgpl_2.so.2...done.
Loaded symbols for /usr/lib/libart_lgpl_2.so.2
Reading symbols from /lib/tls/i686/cmov/libm.so.6...done.
Loaded symbols for /lib/tls/i686/cmov/libm.so.6
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Core was generated by `hobbitd_rrd --rrddir=/data/hobbit/data/rrd
--extra-script=/data/hobbit/server/e'.
Program terminated with signal 6, Aborted.
#0 0xb7f72410 in ?? ()
(gdb) bt
#0 0xb7f72410 in ?? ()
#1 0xbfbe576c in ?? ()
#2 0x00000006 in ?? ()
#3 0x000017c0 in ?? ()
#4 0xb7c42811 in raise () from /lib/tls/i686/cmov/libc.so.6
#5 0xb7c43fb9 in abort () from /lib/tls/i686/cmov/libc.so.6
#6 0x0806d9d1 in sigsegv_handler (signum=11) at sig.c:58
#7 0xb7f72420 in ?? ()
#8 0x0000000b in ?? ()
#9 0x00000033 in ?? ()
#10 0x00000000 in ?? ()
(gdb)
Olivier