Hi Timo, Was getting the following error repeatedly in my mail client (squirremail) "error: connection dropped by IMAP server" Looked at the logs for this user and found the following: Nov 19 17:11:32 mink dovecot: IMAP(bobuser at maildom.com): broken sync positions in index file /virtual/store2/mail/s/bobuser_maildom.com/Maildir/dovecot.index Nov 19 17:11:32 mink dovecot: IMAP(bobuser at maildom.com): fscking index file /virtual/store2/mail/s/bobuser_maildom.com/Maildir/dovecot.index Nov 19 17:11:32 mink dovecot: IMAP(bobuser at maildom.com): Fixed index file /virtual/store2/mail/s/bobuser_maildom.com/Maildir/dovecot.index: log_file_tail_offset 2273345664 -> 996 Nov 19 17:11:32 mink dovecot: Panic: IMAP(bobuser at maildom.com): file mail-transaction-log.c: line 341 (mail_transaction_log_set_mailbox_sync_pos): assertion failed: (file_offset >= log->head->saved_tail_offset) Nov 19 17:11:32 mink dovecot: IMAP(bobuser at maildom.com): Raw backtrace: imap [0x46c772] -> imap [0x46c7e3] -> imap [0x46be56] -> imap [0x452d6d] -> imap(mail_index_sync_commit+0x42) [0x44e022] -> imap(maildir_sync_index_finish+0xdd) [0x42b59d] -> imap [0x42ada1] -> imap(maildir_storage_sync_init+0x64) [0x42af44] -> imap(mailbox_sync+0x1c) [0x43e96c] -> imap(cmd_select_full+0xce) [0x41a2be] -> imap(cmd_select+0xb) [0x41a44b] -> imap [0x41bb7c] -> imap [0x41bc32] -> imap [0x41c3ff] -> imap(client_input+0x63) [0x41c633] -> imap(io_loop_handler_run+0xf8) [0x472ed8] -> imap(io_loop_run+0x1d) [0x471ffd] -> imap(main+0x3c2) [0x423a92] -> /lib/libc.so.6(__libc_start_main+0xf4) [0x7f29213711c4] -> imap [0x416349] Looks like dovecot tried to fix the indexes but failed. I manually deleted all the dovecot.index* files and the account started working. Perhaps dovecot could try the fix but if it still fails just go and delete the indexes itself? Dovecot version 1.1.6 Using Maildirs Over NFS mount If you need any more info just let me know. Regards, Daniel
On Nov 24, 2008, at 11:14 AM, Daniel Watts wrote:> Nov 19 17:11:32 mink dovecot: Panic: IMAP(bobuser at maildom.com): file > mail-transaction-log.c: line 341 > (mail_transaction_log_set_mailbox_sync_pos): assertion failed: > (file_offset >= log->head->saved_tail_offset)I'll see if I can get this fixed, but..> Looks like dovecot tried to fix the indexes but failed. I manually > deleted all the dovecot.index* files and the account started working.If it happens again, please make a copy of the files before deleting. It's a lot easier to debug these bugs if I can see the dovecot.index and dovecot.index.log contents.> Perhaps dovecot could try the fix but if it still fails just go and > delete the indexes itself?It's not really possible to delete indexes automatically because of a crash. -------------- next part -------------- A non-text attachment was scrubbed... Name: PGP.sig Type: application/pgp-signature Size: 194 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dovecot/attachments/20081124/b0e6c542/attachment-0002.bin>
Timo,> > If it happens again, please make a copy of the files before deleting. > It's a lot easier to debug these bugs if I can see the dovecot.index > and dovecot.index.log contents.I will do - have asked my sysadmin to make backups the next time it happens.> >> Perhaps dovecot could try the fix but if it still fails just go and >> delete the indexes itself? > > It's not really possible to delete indexes automatically because of a > crash. >May I ask why? This is bascially what we do manually if we encounter a corrupt, unrepairable index and it seems to work fine with no noticeable negative impact. Dan