Hello,

dovecot-2.2.22-1.fc23.x86_64 from Fedora. I have some old messages, and when I try to open them, dovecot dies:

Mar 29 15:29:33 nerijus dovecot: imap(nerijus): Error: Maildir filename has wrong S value, renamed the file from /ho me/nerijus/Maildir/.Linux_old.fetchmail/cur/1038402635.13668_0.nerijus,S=11015:2,FS to /home/nerijus/Maildir/.Linux_ old.fetchmail/cur/1038402635.13668_0.nerijus,S=10955:2,FS Mar 29 15:29:33 nerijus dovecot: imap(nerijus): Error: Corrupted index cache file /home/nerijus/Maildir/.Linux_old.f etchmail/dovecot.index.cache: Broken physical size for mail UID 49 in mailbox Linux_old.fetchmail: read(/home/neriju s/Maildir/.Linux_old.fetchmail/cur/1038402635.13668_0.nerijus,S=11015:2,FS) failed: Cached message size larger than expected (11015 > 10955, box=Linux_old.fetchmail, UID=49, cached Message-Id=<20021127125617.GB26938@mcdonald.bombay. retortsoft.com>) Mar 29 15:29:33 nerijus dovecot: imap(nerijus): Panic: file istream.c: line 163 (i_stream_read): assertion failed: (old_size <= _stream->pos - _stream->skip)

Attaching backtrace1.

Mar 29 16:03:16 nerijus dovecot: imap(nerijus): Error: Maildir filename has wrong S value, renamed the file from /ho me/nerijus/Maildir/.Linux_old.FLTK/cur/1033767038.6490_0.nerijus,S=4712:2,S to /home/nerijus/Maildir/.Linux_old.FLTK /cur/1033767038.6490_0.nerijus,S=4665:2,S Mar 29 16:03:16 nerijus dovecot: imap(nerijus): Error: Corrupted index cache file /home/nerijus/Maildir/.Linux_old.F LTK/dovecot.index.cache: Broken physical size for mail UID 109 in mailbox Linux_old.FLTK: read(/home/nerijus/Maildir /.Linux_old.FLTK/cur/1033767038.6490_0.nerijus,S=4712:2,S) failed: Cached message size larger than expected (4712 > 4665, box=Linux_old.FLTK, UID=109, cached Message-Id=3D9E04B0.2070105@easysw.com) Mar 29 16:03:16 nerijus dovecot: imap(nerijus): Panic: file istream.c: line 163 (i_stream_read): assertion failed: ( old_size <= _stream->pos - _stream->skip)

Attaching backtrace2.

Regards, Nerijus