$ gdb /usr/bin/perl
GNU gdb Red Hat Linux (5.3post-0.20021129.18rh)
Copyright 2003 Free Software Foundation, Inc.
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This GDB was configured as "i386-redhat-linux-gnu"...
(no debugging symbols found)...
(gdb) run test.pl
Starting program: /usr/bin/perl test.pl
[New Thread 1075644768 (LWP 6591)]
- reading testfile '/bin/ls'
- inserting testfile contents
- oid = '16265446'
- reading large object

Program received signal SIGINT, Interrupt.
[Switching to Thread 1075644768 (LWP 6591)]
0xffffe002 in ?? ()
(gdb) info stack
#0  0xffffe002 in ?? ()
#1  0x404e90f7 in ERR_get_state () from /lib/libcrypto.so.4
#2  0x404e8a79 in ERR_peek_last_error_line_data () from /lib/libcrypto.so.4
#3  0x404e891a in ERR_peek_error () from /lib/libcrypto.so.4
#4  0x4045e35a in SSL_get_error () from /lib/libssl.so.4
#5  0x404216e5 in pqsecure_read () from /usr/lib/libpq.so.3
#6  0x4041d76a in pqReadData () from /usr/lib/libpq.so.3
#7  0x4041c224 in PQfn () from /usr/lib/libpq.so.3
#8  0x4041f773 in lo_read () from /usr/lib/libpq.so.3
#9  0x4014c194 in pg_db_lo_read (dbh=0x19bf, fd=1079323488, 
    buf=0x40552b60 "Ð|N@ }N@0~N@Ð~N@p\177N@\020\200N@à\200N@\200\201N@ \202N@\020\203N@\001", len=1079323488) at dbdimp.c:545
#10 0x40144881 in XS_DBD__Pg__st_bind_param_inout (my_perl=0x804bcb8, 
    cv=0x81b0a48) at Pg.xs:282
#11 0x40400247 in XS_DBI_dispatch (my_perl=0x804bcb8, cv=0x8189158)
    at DBI.xs:2320
#12 0x400a34e5 in Perl_pp_entersub (my_perl=0x804bcb8) at pp_hot.c:2781
#13 0x40086c9a in Perl_runops_debug (my_perl=0x804bcb8) at dump.c:1414
#14 0x4003a9ab in S_run_body (my_perl=0x804bcb8, oldscope=6591) at perl.c:1705
#15 0x4003a635 in perl_run (my_perl=0x804bcb8) at perl.c:1624
#16 0x080493a3 in main ()
#17 0x420156a4 in __libc_start_main () from /lib/tls/libc.so.6
(gdb) info reg
eax            0x19bf	6591
ecx            0x0	0
edx            0x40552b60	1079323488
ebx            0x40560010	1079377936
esp            0xbfffe998	0xbfffe998
ebp            0xbfffe9a8	0xbfffe9a8
esi            0xffffffff	-1
edi            0x81c6a80	136080000
eip            0xffffe002	0xffffe002
eflags         0x246	582
cs             0x23	35
ss             0x2b	43
ds             0x2b	43
es             0x2b	43
fs             0x0	0
gs             0x33	51
(gdb) q