<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">On 11 Sep 2018, at 10.57, Simone Lazzaris <<a href="mailto:s.lazzaris@interactive.eu" class="">s.lazzaris@interactive.eu</a>> wrote:<br class=""><div><blockquote type="cite" class=""><br class="Apple-interchange-newline"><div class=""><div style="white-space: pre-wrap; caret-color: rgb(0, 0, 0); font-family: "Bitstream Vera Sans Mono"; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; margin: 0px;" class="">Sep 11 03:25:55 imap-front4 dovecot: director: Panic: file doveadm-connection.c: line 1097 (doveadm_connection_deinit): assertion failed: (conn->to_ring_sync_abort == NULL)</div><div style="white-space: pre-wrap; caret-color: rgb(0, 0, 0); font-family: "Bitstream Vera Sans Mono"; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; margin: 0px;" class="">Sep 11 03:25:55 imap-front4 dovecot: director: Fatal: master: service(director): child 4395 killed with signal 6 (core dumps disabled)</div></div></blockquote><br class=""></div><div>It's crashing. Can you get gdb backtrace? First enable core dumps. <a href="https://dovecot.org/bugreport.html#coredumps" class="">https://dovecot.org/bugreport.html#coredumps</a></div><div><br class=""></div></body></html>