gdb error

[admin1979]

Hello,

We are using 2.6.16.46-0.12-default kernel.
And GNU gdb 6.6 version.

We are getting following error while using gdb for core file.

SERVER> gdb $BIN/sia core
GNU gdb 6.6
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 "i586-suse-linux"...
Using host libthread_db library "/lib/libthread_db.so.1".

warning: Can't read pathname for load map: Input/output error.

warning: .dynamic section for "/lib/libc.so.6" is not at the expected address

warning: difference appears to be caused by prelink, adjusting expectations

warning: .dynamic section for "/lib/ld-linux.so.2" is not at the expected address (wrong library or version mismatch?)
Reading symbols from /lib/libnss_nis.so.2...done.
Loaded symbols for /lib/libnss_nis.so.2
Reading symbols from /usr/lib/libstdc++.so.5...done.
Loaded symbols for /usr/lib/libstdc++.so.5
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Error while mapping shared library sections:
tead of standard output
a filename can be specified using the LD_DEBUG_OUTPUT environment variable.
: No such file or directory.
Core was generated by `sia'.
Program terminated with signal 11, Segmentation fault.
#0 0x08248cc0 in ?? ()
(gdb) q


I am not so familiar with the gdb application so I might be missing something very obvious. Please suggest.


Thanx,
admin

[dirk dierickx]

it mentiones prelinking, this is a process that prepares c++ programs linking information which allows them to start faster.

http://en.wikipedia.org/wiki/Prelink

see randomization section of the article, might be the cause.

[admin1979]

Not much help.