Local access to IMAP mailboxes

[Victor Sudakov]

This time an Android IMAP client complains about the "unexpected end
of the network stream" while opening a mailbox named "dss", and
dovecot logs:

Sep 28 23:01:34 admin dovecot: imap-login: Login: user=<vas>, method=PLAIN, rip=78.140.19.131, lip=95.179.154.55, mpid=85536, TLS, session=<6ITSkfB2JfNOjBOD>
Sep 28 23:01:35 admin dovecot: Error: imap(vas)<85536><6ITSkfB2JfNOjBOD>: Corrupted record in index cache file /home/vas/Mail/.imap/dss/dovecot.index.cache: UID 56: Broken physical size in mailbox dss: read(/home/vas/Mail/dss) failed: Cached message size smaller than expected (8271 < 8282, box=dss, UID=56)
Sep 28 23:01:35 admin dovecot: Error: imap(vas)<85536><6ITSkfB2JfNOjBOD>: Mailbox dss: UID=56: read(/home/vas/Mail/dss) failed: Cached message size smaller than expected (8271 < 8282, box=dss, UID=56) (FETCH BODY[2])
Sep 28 23:01:35 admin dovecot: imap(vas)<85536><6ITSkfB2JfNOjBOD>: FETCH read() failed in=896 out=54723 deleted=0 expunged=0 trashed=0 hdr_count=15 hdr_bytes=7777 body_count=14 body_bytes=37063
Sep 28 23:02:54 admin dovecot: imap-login: Login: user=<vas>, method=PLAIN, rip=78.140.19.131, lip=95.179.154.55, mpid=85560, TLS, session=<x6mSlvB2NN1OjBOD>
Sep 28 23:02:55 admin dovecot: Error: imap(vas)<85560><x6mSlvB2NN1OjBOD>: Corrupted record in index cache file /home/vas/Mail/.imap/dss/dovecot.index.cache: UID 27: Broken physical size in mailbox dss: read(/home/vas/Mail/dss) failed: Cached message size smaller than expected (4867 < 4878, box=dss, UID=27)
Sep 28 23:02:55 admin dovecot: imap(vas)<85560><x6mSlvB2NN1OjBOD>: Panic: file istream.c: line 315 (i_stream_read_memarea): assertion failed: (old_size <= _stream->pos - _stream->skip)
Sep 28 23:02:55 admin dovecot: imap(vas)<85560><x6mSlvB2NN1OjBOD>: Fatal: master: service(imap): child 85560 killed with signal 6 (core not dumped - https://dovecot.org/bugreport.html#coredumps - set service imap { drop_priv_before_exec=yes })


Is this that corrupted index case? It even causes the panic in the
daemon. Can I fix the index or somehow reindex the mailbox?

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet http://vas.tomsk.ru/