$ gdb /usr/bin/pinfo
GNU gdb (Gentoo 7.2 p1) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This GDB was configured as "x86_64-pc-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.gentoo.org/>...
Reading symbols from /usr/bin/pinfo...Reading symbols from /usr/lib64/debug/usr/bin/pinfo.debug...done.
done.
(gdb) run gnus
Starting program: /usr/bin/pinfo gnus
Przemek's Info Viewer v0.6.9

Program received signal SIGSEGV, Segmentation fault.
_IO_new_fclose (fp=0x0) at iofclose.c:57
57	iofclose.c: No such file or directory.
	in iofclose.c
(gdb) bt
#0  _IO_new_fclose (fp=0x0) at iofclose.c:57
#1  0x00000000004056fb in dirpage_lookup (type=0x7fffffffe290, 
    message=0x7fffffffe298, lines=0x7fffffffe2a0, 
    filename=0x7fffffffe2c0 "gnus", first_node=0x61d920)
    at filehandling_functions.c:207
#2  0x00000000004038b7 in main (argc=2, argv=0x7fffffffe508) at pinfo.c:307
(gdb)