[root@hermes scratch]# gdb /usr/libexec/dovecot/imap /home/alden/core.4880
GNU gdb Red Hat Linux (6.3.0.0-1.90rh)
Copyright 2004 Free Software Foundation, Inc.
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This GDB was configured as "i386-redhat-linux-gnu"...
(no debugging symbols found)
Using host libthread_db library "/lib/tls/libthread_db.so.1".

Core was generated by `imap'.
Program terminated with signal 6, Aborted.
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/tls/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/tls/libc.so.6
Reading symbols from /lib/ld-linux.so.2...
(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux.so.2
#0  0x00d6ceff in raise ()
   from /lib/tls/libc.so.6
(gdb) bt full
#0  0x00d6ceff in raise () from /lib/tls/libc.so.6
No symbol table info available.
#1  0x00d6e705 in abort () from /lib/tls/libc.so.6
No symbol table info available.
#2  0x080a2294 in i_set_failure_file ()
No symbol table info available.
#3  0x080a1e63 in i_panic ()
No symbol table info available.
#4  0x08073b58 in mbox_sync_headers_add_space ()
No symbol table info available.
#5  0x08073e57 in mbox_sync_try_rewrite ()
No symbol table info available.
#6  0x0806fb45 in mbox_sync_apply_index_syncs ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#7  0x080702c7 in mbox_sync_apply_index_syncs ()
No symbol table info available.
#8  0x08071030 in mbox_sync_apply_index_syncs ()
No symbol table info available.
#9  0x08071580 in mbox_sync ()
No symbol table info available.
#10 0x0806ab29 in mbox_transaction_commit ()
No symbol table info available.
#11 0x080967ae in mailbox_transaction_commit ()
No symbol table info available.
#12 0x0805b4ad in imap_expunge ()
No symbol table info available.
#13 0x080571ed in cmd_expunge ()
No symbol table info available.
---Type <return> to continue, or q <return> to quit---
#14 0x0805a597 in _client_reset_command ()
No symbol table info available.
#15 0x0805a6b2 in _client_input ()
No symbol table info available.
#16 0x080a7670 in io_loop_handler_run ()
No symbol table info available.
#17 0x080a6cf9 in io_loop_run ()
No symbol table info available.
#18 0x080615c3 in main ()
No symbol table info available.
(gdb) quit