[Dovecot] Problem searching with thunderbird

[Jon]

Hi, I'm getting 100s of these errrors when a use the search function in 
thunderbird.  Thunderbird seems to keep searching but shows no restults.

Any ideas why?

dovecot: Sep 30 14:12:04 Error: IMAP(jon): Trying to allocate 2217042872 
bytes
dovecot: Sep 30 14:12:04 Error: IMAP(jon): Raw backtrace: imap 
[0x80b705e] -> imap [0x80b6bab] -> imap [0x80bdbe3] -> imap [0x80b5b65] 
-> imap(buffer_create_dynamic+0x27) [0x80b5c97] -> imap(t_str_new+0x17) 
[0x80c2a97] -> imap(message_search_init+0x42) [0x80b2d2e] -> imap 
[0x808abb4] -> imap [0x808aca7] -> imap [0x80a8c6c] -> 
imap(mail_search_args_foreach+0x23) [0x80a8cff] -> imap [0x808ae68] -> 
imap(message_parse_header+0x44) [0x80b15cc] -> imap [0x808b051] -> imap 
[0x808ba7a] -> imap(index_storage_search_next_nonblock+0x7e) [0x808bc76] 
-> imap(mailbox_search_next_nonblock+0x17) [0x80a9b7b] -> 
imap(vfprintf+0x3c68) [0x805c588] -> imap(cmd_search+0x8f) [0x805c78b] 
-> imap(cmd_uid+0x56) [0x805d59a] -> imap [0x805e39e] -> imap 
[0x805e2bd] -> imap [0x805e431] -> imap(client_input+0x56) [0x805e4ee] 
-> imap(io_loop_handler_run+0x100) [0x80bc72c] -> imap(io_loop_run+0x2d) 
[0x80bbcd1] -> imap(main+0x64) [0x8064d98] -> 
imap(__libc_start_main+0xa4) [0x420158d4]

Settings:

# 1.1.beta1: /usr/local/etc/dovecot.conf
log_path: /var/log/dovecot.log
listen: *:143
ssl_listen: *:993
login_dir: /usr/local/var/run/dovecot/login
login_executable: /usr/local/libexec/dovecot/imap-login
login_processes_count: 2
mail_location: maildir:%h/.Maildir
mmap_disable: yes
mail_nfs_storage: yes
mail_nfs_index: yes
auth default:
  passdb:
    driver: pam
  userdb:
    driver: passwd

Best regards - Jon