lmtp segfault after upgrade

[Tom Sommer]

On 2017-05-19 08:41, Timo Sirainen wrote:

> On 2 May 2017, at 11.19, Timo Sirainen <tss at iki.fi> wrote:
> 
> On 2 May 2017, at 10.41, Tom Sommer <mail at tomsommer.dk> wrote:
> 
> (gdb) bt full
> #0  i_stream_seek (stream=0x21, v_offset=0) at istream.c:298
> _stream = <value optimized out>
> #1  0x00007fe98391ff32 in i_stream_concat_read_next (stream=0x1efe6c0) 
> at istream-concat.c:77
> prev_input = 0x1ef1560
> data = 0x0
> data_size = <value optimized out>
> size = <value optimized out>
> #2  i_stream_concat_read (stream=0x1efe6c0) at istream-concat.c:175
> This isn't very obvious.. There hasn't been any changes to 
> istream-concat code in 2.2.29 and I can't really think of any other 
> changes either that could be causing these crashes. Do these crashes 
> happen to all mail deliveries or only some (any idea of percentage)? 
> Maybe only for deliveries that have multiple recipients (in different 
> backends)? We'll try to reproduce, but I'd think someone else would 
> have already noticed/complained if it was that badly broken..
> 
> What's your doveconf -n? Also can you try running via valgrind to see 
> what it logs before the crash? :
> 
> service lmtp {
> executable = /usr/bin/valgrind --vgdb=no -q /usr/libexec/dovecot/lmtp # 
> or whatever the lmtp path really is
> }

I don't really know why this started happening with you now, but it 
should be fixed by 
https://github.com/dovecot/core/commit/16b5dc27e7db42849510403d37e3629aba14de21

Somehow I always end up being hit by the weirdest bugs :)

Thank you for the fix.

Any chance of a 2.2.30 with this included? :)