[Dovecot] Dovecot 1.1.1 + zlib plugin + mbox crash

[Chris Wakelin]

I've tried this on both Solaris 8 and SuSE Enterprise 9 (64-bit).

I get a assert-crash when using a gzipped mbox folder

. OK Logged in.
. SELECT test.gz
* FLAGS (\Answered \Flagged \Deleted \Seen \Draft $Label4 $Label2 
$Label1 $Label3 $Label5)
* OK [PERMANENTFLAGS ()] Read-only mailbox.
* 167 EXISTS
* 0 RECENT
* OK [UNSEEN 2] First unseen.
* OK [UIDVALIDITY 1096038620] UIDs valid
* OK [UIDNEXT 42890] Predicted next UID
. OK [READ-ONLY] Select completed.
. FETCH 167 FULL
* 167 FETCH (FLAGS () INTERNALDATE "05-Jan-2003 07:05:37 +0000" 
RFC822.SIZE 4693 ENVELOPE ("Sat, 04 Jan 2003 21:05:48 -0800" "[xxxxxxx] 
xx: xxxx xxxxxxxxxxx" (("xxxxx xxxxxxxx" NIL "xxxxxxxxxxxx" 
"xxxxx.xxx")) ((NIL NIL "xxxxxxx-xxxxxx" "xxxxxxxxxx.xx")) (("xxxxx 
xxxxxxxx" NIL "xxxxxxxxxxxx" "xxxxx.xxx")) (("xxxxxxx xxxx xxxx" NIL 
"xxxxxxx" "xxxxxxxxxx.xx")) NIL NIL NIL "<xxxxxxxx.xxxxxxx at xxxxx.xxx>") 
BODY ("text" "plain" ("charset" "us-ascii" "format" "flowed") NIL NIL 
"7bit" 3408 35))
. OK Fetch completed.
. FETCH 167 BODY[]
Connection closed by foreign host.

dovecot: Jul 23 15:35:39 Info: imap-login: Login: user=<xxxxxxxx>, 
method=PLAIN, rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx
dovecot: Jul 23 15:35:39 Info: auth(default): new auth connection: pid=841
dovecot: Jul 23 15:35:54 Panic: IMAP 888 xxxxxxxx xxx.xxx.xxx.xxx : file 
istream-raw-mbox.c: line 363 (i_stream_create_raw_mbox): assertion 
failed: (input->v_offset == 0)
dovecot: Jul 23 15:35:54 Error: IMAP 888 xxxxxxxx xxx.xxx.xxx.xxx : Raw 
backtrace: imap [0x4833b8] -> imap [0x483413] -> imap [0x482e46] -> imap 
[0x43ce47] ->
imap(mbox_file_open_stream+0x40) [0x434f40] -> imap [0x4363c1] -> imap 
[0x436778] -> imap(mail_get_stream+0xa) [0x4547ea] -> 
imap(index_mail_set_seq+0x144) [
0x44b444] -> imap [0x436a79] -> imap(mail_set_seq+0x7) [0x454697] -> 
imap(index_storage_search_next_nonblock+0xd7) [0x44ef07] -> 
imap(mailbox_search_next_non
block+0x10) [0x455ef0] -> imap(mailbox_search_next+0x20) [0x455f20] -> 
imap(imap_fetch+0x87) [0x41d457] -> imap(cmd_fetch+0x1f4) [0x4174b4] -> 
imap [0x41b2e4
] -> imap [0x41b2d8] -> imap [0x41bc91] -> imap(client_input+0x5f) 
[0x41bdaf] -> imap(io_loop_handler_run+0xf7) [0x489d97] -> 
imap(io_loop_run+0x28) [0x48906
8] -> imap(main+0x462) [0x4233b2] -> 
/lib64/tls/libc.so.6(__libc_start_main+0xea) [0x2a9578caaa] -> 
imap(__ctype_b_loc+0x4a) [0x415b3a]
dovecot: Jul 23 15:35:54 Error: child 888 (imap) killed with signal 6

dovecot -n output:

# 1.1.1: /opt/RDGdovect/etc/dovecot.conf
base_dir: /opt/RDGdovect/var/run/
log_path: /opt/RDGdovect/var/log/dovecot.log
info_log_path: /opt/RDGdovect/var/log/dovecot.log
protocols: imap
listen: *:143
ssl_disable: yes
disable_plaintext_auth: no
shutdown_clients: no
login_dir: /opt/RDGdovect/var/run/login
login_executable: /opt/RDGdovect/libexec/dovecot/imap-login
login_greeting: University of Reading IMAP test1.1 ready.
login_process_per_connection: no
verbose_proctitle: yes
mail_location: 
mbox:/export/folders/%13.h/mail/:INBOX=/export/mail/%13.h/INBOX:INDEX=/export/indexes/%13.h
mbox_very_dirty_syncs: yes
mail_drop_priv_before_exec: yes
mail_plugins: zlib
mail_log_prefix: %Us %p %u %r :
imap_client_workarounds: outlook-idle delay-newmail
auth default:
   mechanisms: plain login
   username_format: %Ln
   verbose: yes
   debug: yes
   passdb:
     driver: ldap
     args: /opt/RDGdovect/etc/dovecot-ldap.conf
   userdb:
     driver: passwd-file
     args: /opt/RDGdovect/etc/userdb


I've attached the relevant test.gz file (anonymised for the test)

Has anybody else got it working?

Best Wishes,
Chris

-- 
--+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+-
Christopher Wakelin,                           c.d.wakelin at reading.ac.uk
IT Services Centre, The University of Reading,  Tel: +44 (0)118 378 8439
Whiteknights, Reading, RG6 2AF, UK              Fax: +44 (0)118 975 3094
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