[Dovecot] index-related crash in dovecot 1.0.0

[J.Wendland at scan-plus.de]

Hi,
dovecot crashes with the following trace when accessing some Maildirs:

dovecot: 2007-05-16 13:30:09 Error: IMAP(6126360): file 
index-mail-headers.c: 
  line 260 (index_mail_parse_header): assertion failed: (part != NULL)
dovecot: 2007-05-16 13:30:09 Error: IMAP(6126360): Raw backtrace: 
  imap [6126360] [0x80b6d6b] 
  -> imap [6126360] [0x80b6769] 
  -> imap [6126360] [0x808abda] 
  -> imap [6126360](message_parse_header+0x56) [0x80b2166] 
  -> imap [6126360](index_mail_parse_headers+0x113) [0x808ad03] 
  -> imap [6126360] [0x80891bb] 
  -> imap [6126360](index_mail_get_special+0x112) [0x8089632] 
  -> imap [6126360] [0x806dc3b] 
  -> imap [6126360](mail_get_special+0x16) [0x80a7cf6] 
  -> imap [6126360] [0x805dc2f] 
  -> imap [6126360](imap_fetch+0xf3) [0x805d7b3] 
  -> imap [6126360](cmd_fetch+0xff) [0x805845f] 
  -> imap [6126360](cmd_uid+0x52) [0x805b272] 
  -> imap [6126360] [0x805be65] 
  -> imap [6126360] [0x805bddb] 
  -> imap [6126360](_client_input+0x6d) [0x805bf4d] 
  -> imap [6126360](io_loop_handler_run+0x128) [0x80bd1a8] 
  -> imap [6126360](io_loop_run+0x28) [0x80bc618] 
  -> imap [6126360](main+0x69) [0x80645c9] 
  -> /lib/libc.so.6(__libc_start_main+0x9e) [0x400383be] 
  -> imap [6126360] [0x8056a01]
dovecot: 2007-05-16 13:30:09 Error: child 6845 (imap) killed with signal 6

The command leading to the crash is (line wrapped for readability):

UID FETCH 1:214748367 (UID ENVELOPE BODYSTRUCTURE INTERNALDATE 
RFC822.SIZE FLAGS BODY.PEEK[HEADER.FIELDS (Importance X-Priority 
                                           Priority X-PIM-INFOS 
                                           Content-Type Date)])

When I connect to dovecot and simply fetch with the following
command:

UID FETCH 1:* (ENVELOPE)

dovecot seems to updates its dovecot.index.cache files and the crash
never appears again. I have a mailbox that can be used to reproduce
the error.

Best wishes,
  Jörg


# dovecot --version
1.0.0
# dovecot -n
# /etc/dovecot/dovecot.conf
base_dir: /var/run/dovecot/
log_path: /var/log/dovecot-error.out
info_log_path: /var/log/dovecot.out
log_timestamp: %Y-%m-%d %H:%M:%S
protocols: imap
ssl_disable: yes
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable: /usr/lib/dovecot/imap-login
login_greeting: DVAG IMAP server ready
login_process_per_connection: no
login_chroot: no
login_greeting_capability: yes
login_processes_count: 5
login_max_connections: 2048
max_mail_processes: 2048
verbose_proctitle: yes
mail_extra_groups: mail
default_mail_env: maildir:%h/Maildir
mail_location: maildir:%h/Maildir
mail_read_mmaped: yes
maildir_copy_with_hardlinks: yes
mail_drop_priv_before_exec: yes
mail_executable: /usr/local/bin/dovecot-postlogin
mail_plugins: quota imap_quota acl
namespace:
  type: private
  separator: .
  prefix: INBOX.
  location: maildir:%h/Maildir
  inbox: yes
auth default:
  mechanisms: plain login
  master_user_separator: *
  worker_max_count: 64
  passdb:
    driver: passwd-file
    args: /etc/dovecot/dovecot-master.pwd
    master: yes
  passdb:
    driver: checkpassword
    args: /usr/local/bin/checkpassword-zob
  userdb:
    driver: ldap
    args: /etc/dovecot/dovecot-ldap.conf
plugin:
  quota: maildir:storage=0
  acl: vfile:/etc/dovecot/acls
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