Dearest list,

just now I migrated a pine user to dovecot. Nothing special so far, but then I saw this in my syslog and the user reported, that he got this error message:

MAIL FOLDER "INBOX" CLOSED DUE TO ACCESS ERROR

Obviously this problem is related to his local filter rules: If commented out everything works like a charm. The corresponding filter rule looks for a "From"-Line in the email header but the filter string itself is empty. I know this filter rule does not make a lot of sense, but nevertheless it shouldn't crash the imap process. If there is any additional information you need please ask.

--- snip --- Nov 16 11:25:07 imap-mgt dovecot: imap(username): Panic: file istream-header-filter.c: line 520 (i_stream_create_header_filter): assertion failed: (ret < 0) Nov 16 11:25:07 imap-mgt dovecot: imap(username): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x3e81b) [0x7f82a3bc381b] -> /usr/lib/dovecot/libdovecot.so.0(+0x3e876) [0x7f82a3bc3876] -> /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f82a3b9dacf] -> /usr/lib/do vecot/libdovecot.so.0(i_stream_create_header_filter+0x27b) [0x7f82a3babf9b] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_get_header_stream+0x154) [0x7f82a3e4cf04] -> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x530) [0x7f82a3e4e7 e0] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x20) [0x7f82a3e36630] -> dovecot/imap() [0x416284] -> dovecot/imap(imap_search_start+0x106) [0x4166f6] -> dovecot/imap(cmd_search+0xc5) [0x40d535] -> dovecot/imap() [0x41032d] -> dovecot/imap() [0x41040d] -> dovecot/imap(client_handle_input+0x135) [0x410635] -> dovecot/imap(client_input+0x5f) [0x410f5f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0xb5) [0x7f82a3bcf205] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x18) [0x7f82a3bce338] -> /usr/lib /dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f82a3bbd0e3] -> dovecot/imap(main+0x2d1) [0x418f91] -> /lib/libc.so.6(__libc_start_main+0xfd) [0x7f82a3436c4d] -> dovecot/imap() [0x408c39] Nov 16 11:25:07 imap-mgt dovecot: master: Error: service(imap): child 23925 killed with signal 6 (core not dumped) --- snip ---

doveconf -n:

# 2.0.7 (3aced5ececd7): /etc/dovecot/dovecot.conf # OS: Linux 2.6.26-2-amd64 x86_64 Debian 5.0.6 xfs auth_gssapi_hostname = imap.mpifr-bonn.mpg.de auth_mechanisms = plain login gssapi auth_verbose = yes listen = 134.104.18.77 mail_gid = 40000 mail_location = mdbox:/var/mail/%Ln mail_uid = 40000 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date namespace { inbox = yes location = prefix = separator = . } passdb { args = /etc/dovecot/dovecot-ldap-passdb.conf.ext driver = ldap } plugin { sieve = ~/.dovecot.sieve sieve_after = /home/global-after.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { group = vmail } } service lmtp { inet_listener lmtp { address = 134.104.18.77 port = 24 } } service managesieve-login { inet_listener sieve { address = 134.104.18.77 port = 4190 } } ssl = required ssl_cert =

-- MAX-PLANCK-INSTITUT fuer Radioastronomie Jan Behrend - Rechenzentrum

Auf dem Huegel 69, D-53121 Bonn Tel: +49 (228) 525 359, Fax: +49 (228) 525 229 jbehrend@mpifr-bonn.mpg.de http://www.mpifr-bonn.mpg.de