2.2.25 dumps core with "Panic: file imap-client.c: line 837 (client_check_command_hangs): assertion failed: (client->io != NULL)"

[Timo Sirainen]

On 29 Aug 2016, at 02:00, Piper Andreas <piper at hrz.uni-marburg.de> wrote:
> 
> Hello,
> 
> Dovecot 2.2.25
..
> About once a day Dovecot crashes with
> "Panic: file imap-client.c: line 837 (client_check_command_hangs):
> assertion failed: (client->io != NULL)"

I fixed one such crash in git master branch, but it was never in 2.2.25..

> Find attached the output of 'doveconf -n'.
..
> # 2.2.25 (f5ac02c): /etc/opt/csw/dovecot/dovecot.conf

What is this version? 2.2.25 release had 7be1766. I can't find any such commit hash from git.