[Dovecot] 1.2.rc3 crash of deliver for one out of 4 recipients

[Timo Sirainen]

On Tue, 2009-06-02 at 17:07 +0200, Wolfgang.Friebel at desy.de wrote:
> This is the first and only crash I could find in the logs
> (approx 500k Lines of postfix/dovecot logs)
> 
> The following information could be extracted from the logfile (no core 
> dump unfortunately)
> 
> May 31 02:07:25 apollo dovecot: deliver(user1): Panic: 
> file istream.c: line 99 (i_stream_read): assertion failed: 
> ((size_t)ret+old_size == _stream->pos - _stream->skip)

I suppose this hasn't happened since? Core dump from this would be
really interesting. I've also attached a patch that could at least show
if my guess it right where it probably crashed..
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