[Dovecot] 2.1: Error: Maildir filename has wrong S value, renamed the file from

[Gordon Grubert]

Dear list,

we're using dovecot 2.1.15 (debian binary package). The following
error can be found in the mail log files:

Mar 25 15:08:46 mailserver2 dovecot: imap-login: Login: user=<USER>, 
method=PLAIN, rip=IP, lip=IP, mpid=28663, TLS, session=<In7mV8DYFQCNNQQ4>
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Cached message 
size smaller than expected (2252 < 4821)
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Maildir filename 
has wrong S value, renamed the file from 
/var/vmail/uni-greifswald.de/USER/Maildir/cur/1169635911.30322.scooby,S=2252:2,RS 
to 
/var/vmail/uni-greifswald.de/USER/Maildir/cur/1169635911.30322.scooby,S=2252:2,RS
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Corrupted index 
cache file 
/var/vmail/uni-greifswald.de/USER/Maildir/dovecot.index.cache: Broken 
physical size for mail UID 25250
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Cached message 
size smaller than expected (2252 < 4821)
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Maildir filename 
has wrong S value, renamed the file from 
/var/vmail/uni-greifswald.de/USER/Maildir/cur/1169635911.30322.scooby,S=2252:2,RS 
to 
/var/vmail/uni-greifswald.de/USER/Maildir/cur/1169635911.30322.scooby,S=2252:2,RS
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: Corrupted index 
cache file 
/var/vmail/uni-greifswald.de/USER/Maildir/dovecot.index.cache: Broken 
physical size for mail UID 25250
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Error: 
read(/var/vmail/uni-greifswald.de/USER/Maildir/cur/1169635911.30322.scooby,S=2252:2,RS) 
failed: Input/output error (FETCH for mailbox INBOX UID 25250)
Mar 25 15:08:46 mailserver2 dovecot: imap(USER): Disconnected: Internal 
error occurred. Refer to server log for more information. [2013-03-25 
15:08:46] in=246 out=953

The same problem was reported by Ralf Hildebrandt one year ago. The bug
should be fixed with revision 3599790da3d7 but it seems to be there
again.

Input/output errors of the file system are improbable because all
files are accessible and can be read with cat and less.

Any ideas?

Best regards,
Gordon
-- 
Leiter AG Technische Infrastruktur und Basisdienste
Universitaetsrechenzentrum (URZ)
E.-M.-Arndt-Universitaet Greifswald
Felix-Hausdorff-Str. 12
17489 Greifswald
Germany

Tel. +49 3834 86-1456
Fax. +49 3834 86-1401

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