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      Hi All,<br>
      <br>
      I'm new to the list and may be it's a known issue. I have a set of
      servers with RHEL6 and dovecot-2.2.10-1_14.el6.x86_64 and another
      set of servers with RHEL7 and, now, with
      dovecot-2.2.36-3.el7.x86_64. Both sets write to the same NFS. <br>
      Since I updated RHEL7 servers (from 2.2.10-8.el7.x86_64) I've
      problems with index files when a RHEL7 dovecot service write to
      the filesystem of a user (the first log line corresponds to RHEL7
      and the others to RHEL6):<br>
      <br>
      Feb  5 09:33:05 listas3 dovecot: lda(user@domain): sieve:
      msgid=<a class="moz-txt-link-rfc2396E" href="mailto:007bxxxxxxx@uam.es"><007bxxxxxxx@uam.es></a>: stored mail into mailbox 'INBOX'
      <br>
      Feb  5 09:33:25 buzon1 dovecot: imap(user@domain): Error:
      Corrupted transaction log file /.../Maildir/dovecot.index.log seq
      1610: Invalid transaction log size (28408 vs 28528):
      /.../Maildir/dovecot.index.log (sync_offset=28408)<br>
      Feb  5 09:33:25 buzon1 dovecot: imap(user@domain): Panic: file
      mail-index-sync-keywords.c: line 227 (keywords_update_records):
      assertion failed: (data_offset >= sizeof(struct
      mail_index_record))<br>
      Feb  5 09:33:25 buzon1 dovecot: imap(user@domain): Error: Raw
      backtrace: /usr/lib64/dovecot/libdovecot.so.0() [0x3713268b8a]
      -> /usr/lib64/dovecot/libdovecot.so.0() [0x3713268bf6] ->
      /usr/lib64/dovecot/libdovecot.so.0() [0x37132224aa] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_keywords+0x7fd)
      [0x3713aca43d] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_record+0xec)
      [0x3713acacac] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_map+0x234)
      [0x3713acbae4] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_map+0x83)
      [0x3713abcce3] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_refresh+0xe)
      [0x3713ab793e] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(maildir_sync_header_refresh+0x10)
      [0x3713a4e1e0] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3713a4e330] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3713a4f3d4] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3713a4f7b3] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(maildir_storage_sync_init+0xd9)
      [0x3713a4fa59] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x31)
      [0x3713a7d731] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_sync+0x27)
      [0x3713a7e7b7] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_storage_get_status+0x62)
      [0x3713aa8fc2] ->
      /usr/lib64/dovecot/lib10_quota_plugin.so(+0xc3ec) [0x7fd272dfe3ec]
      ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_get_status+0x5c)
      [0x3713a7f4fc] -> dovecot/imap(imap_status_get+0x7a) [0x41dbea]
      -> dovecot/imap(cmd_status+0x179) [0x413059] ->
      dovecot/imap(command_exec+0x3d) [0x4170bd] -> dovecot/imap()
      [0x416180] -> dovecot/imap() [0x41627a] ->
      dovecot/imap(client_handle_input+0x11d) [0x4164ed] ->
      dovecot/imap(client_input+0x6f) [0x41685f] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x36)
      [0x3713278a56] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0xa7)
      [0x3713279b27] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38)
      [0x37132789c8]<br>
      Feb  5 09:33:25 buzon1 dovecot: imap(user@domain): Fatal: master:
      service(imap): child 2057 killed with signal 6 (core dumped)<br>
      Feb  5 09:33:25 buzon4 dovecot: imap-login: Login:
      user=<user@domain>, method=PLAIN, rip=192.168.x.x,
      lip=150.x.x.x, mpid=3459, session=<ZUSAdiGBdwDAqAzY><br>
      Feb  5 09:33:30 buzon4 dovecot: imap(user@domain): Panic: file
      mail-index-sync-keywords.c: line 227 (keywords_update_records):
      assertion failed: (data_offset >= sizeof(struct
      mail_index_record))<br>
      Feb  5 09:33:30 buzon4 dovecot: imap(user@domain): Error: Raw
      backtrace: /usr/lib64/dovecot/libdovecot.so.0() [0x3a88668b8a]
      -> /usr/lib64/dovecot/libdovecot.so.0() [0x3a88668bf6] ->
      /usr/lib64/dovecot/libdovecot.so.0() [0x3a886224aa] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_keywords+0x7fd)
      [0x3a88eca43d] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_record+0xec)
      [0x3a88ecacac] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_sync_map+0x234)
      [0x3a88ecbae4] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_map+0x83)
      [0x3a88ebcce3] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3a88eb797c] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3a88eb7d58] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mail_index_open+0xf0)
      [0x3a88eb7ec0] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_storage_mailbox_open+0xad)
      [0x3a88eab2bd] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3a88e4d71a] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3a88e4d7ef] -> /usr/lib64/dovecot/libdovecot-storage.so.0()
      [0x3a88e7f694] ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_open+0xf)
      [0x3a88e7f84f] ->
/usr/lib64/dovecot/libdovecot-storage.so.0(index_storage_get_status+0x4a)
      [0x3a88ea8faa] ->
      /usr/lib64/dovecot/lib10_quota_plugin.so(+0xc3ec) [0x7fbd599263ec]
      ->
      /usr/lib64/dovecot/libdovecot-storage.so.0(mailbox_get_status+0x5c)
      [0x3a88e7f4fc] -> dovecot/imap(imap_status_get+0x7a) [0x41dbea]
      -> dovecot/imap(cmd_status+0x179) [0x413059] ->
      dovecot/imap(command_exec+0x3d) [0x4170bd] -> dovecot/imap()
      [0x416180] -> dovecot/imap() [0x41627a] ->
      dovecot/imap(client_handle_input+0x11d) [0x4164ed] ->
      dovecot/imap(client_input+0x6f) [0x41685f] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x36)
      [0x3a88678a56] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0xa7)
      [0x3a88679b27] ->
      /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38)
      [0x3a886789c8]<br>
      Feb  5 09:33:30 buzon4 dovecot: imap(user@domain): Fatal: master:
      service(imap): child 3459 killed with signal 6 (core dumped)<br>
      <br>
      Due to this issue when the user goes into his webmail, he can not
      see the inbox. If I delete dovecot.* files from the user maildir
      it gets solved, but usually it happens again, so it's not the
      solution.<br>
      <br>
      Is it any solution for this issue or should I downgrade dovecot to
      2.2.10-8.el7.x86_64 again?<br>
      <br>
      Thanks and best regards<br>
    </p>
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            Palacios Goicolea</span></b><span
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          U.T de Infraestructura de Equipos Centrales<br>
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          color:#4d4d4d;mso-fareast-language:es'="">Universidad Autónoma
          de Madrid • Campus
          de <span class="3DSpellE">Cantoblanco</span><br>
          <a href="3D"http://www.uam.es/"" target="3Dblank"><span
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