[Dovecot] exim/kmail vs. dovecot

[Kristian Koehntopp]

I am using exim via dovecot_deliver to store messages in Maildir in my $HOME. 
I am using kmail to retrieve stuff. Unfortunately, something in my data 
crashes dovecot.

I was using 1.0.rc14 from opensuse, but downloaded and installed 1.0.8 from 
the site.

Here is the crash:


Dec  5 18:05:09 h743107 dovecot: IMAP(kris): file mail-index-transaction.c: 
line  629 (mail_index_update_flags_range): assertion failed: (seq1 <= seq2 && 
seq1 > 0)
Dec  5 18:05:09 h743107 dovecot: child 13896 (imap) killed with signal 6
Dec  5 18:05:09 h743107 dovecot: IMAP(kris): Raw backtrace: imap 
[0x8006cf7d] ->  imap [0x8006ce58] -> 
imap(mail_index_update_flags_range+0x194) [0x8004d034] -> 
imap(mail_index_sync_begin+0x5c9) [0x8004fb79] -> 
imap(maildir_sync_index_begin+0x61) [0x80021c71] -> imap [0x8002350a] -> 
imap(maildir_storage_sync_init+0x56) [0x80023646] -> 
imap(mailbox_sync_init+0x16) [0x8005d566] -> imap(imap_sync_nonselected+0x28) 
[0x8001b838] -> imap(_cmd_select_full+0xd7) [0x80012c47] -> 
imap(cmd_select+0x25) [0x80012e25] -> imap [0x800143ea] -> 
imap[0x8001446c] -> imap(_client_input+0x7d) 
[0x80014bcd] ->imap(io_loop_handler_run+0x127) [0x80073987]-> 
imap(io_loop_run+0x28) [0x80072ac8] -> imap(main+0x518) 
[0x8001d898] -> /lib/libc.so.6(__libc_start_main+0xdc) [0xb7e8d02c] -> 
imap[0x8000f0c1]

I took the liberty to syslog() the seq numbers before the assert and indeed

h743107:/etc/dovecot # grep "imap: seq1" /var/log/messages | head -3
Dec  5 18:30:18 h743107 imap: seq1 1 seq2 1
Dec  5 18:30:18 h743107 imap: seq1 1 seq2 1
Dec  5 18:30:18 h743107 imap: seq1 1 seq2 1
h743107:/etc/dovecot # grep "imap: seq1" /var/log/messages | awk '($9 < $7) { 
print  }'
Dec  5 18:30:42 h743107 imap: seq1 28 seq2 16
Dec  5 18:32:43 h743107 imap: seq1 28 seq2 16

What exactly is broken here and how can I fix that?

Kris

-- 
Kristian =?iso-8859-15?q?K=F6hntopp?= <kris at xn--khntopp-90a.de>