[Dovecot] Crash in dovecot 2.2.6

[Timo Sirainen]

On 5.11.2013, at 10.26, Ed W <lists at wildgooses.com> wrote:

>>> Hi, I recently upgraded from a dovecot 2.1 version to 2.2.6.  I now have a single user who occasionally triggers a crash (just this one user it seems?).  The user connects via LiveMail (v14.0.8117.) and IMAP.
..
> Nov  5 06:08:43 mail1 dovecot: imap(user at example.com): Panic: file mail-index-transaction-export.c: line 203 (log_append_ext_hdr_update): assertion failed: (u32.offset + u32.size <= ext_hdr_size)

Is this still happening? The index file seems to be somehow corrupted. Is this still happening / did you already delete it? Would be useful to look at the index (and/or make it write core dump and gdb it).