GNU gdb (GDB) 7.4.1-debian
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/dovecot/imap...(no debugging symbols found)...done.
Attaching to program: /usr/lib/dovecot/imap, process 27504
ptrace: Kein passender Prozess gefunden.
[New LWP 27504]

warning: Can't read pathname for load map: Eingabe-/Ausgabefehler.
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `dovecot/imap'.
Program terminated with signal 6, Aborted.
#0  0x00007fc66e1c0475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt full
#0  0x00007fc66e1c0475 in raise () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1  0x00007fc66e1c36f0 in abort () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2  0x00007fc66e585df5 in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#3  0x00007fc66e585e5e in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#4  0x00007fc66e53e93e in i_panic () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#5  0x00007fc66e595a21 in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#6  0x00007fc66e58ed18 in i_stream_read () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#7  0x00007fc66e58f63d in i_stream_read_data () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#8  0x00007fc66e57800e in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#9  0x00007fc66e579517 in ?? () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#10 0x00007fc66e5798a9 in message_parser_parse_next_block () from /usr/lib/dovecot/libdovecot.so.0
No symbol table info available.
#11 0x00007fc66e8931cf in index_mail_cache_parse_continue () from /usr/lib/dovecot/libdovecot-storage.so.0
No symbol table info available.
#12 0x00007fc66e88f2a3 in index_attachment_save_continue () from /usr/lib/dovecot/libdovecot-storage.so.0
No symbol table info available.
#13 0x000000000040ced1 in _start ()
No symbol table info available.
(gdb)