Hey everyone, I’ve updated one of our servers to the proposed version via jammy- proposed and, as soon as I started the dovecot service, I caught the same logs again.
APT history.log Start-Date: 2025-09-08 19:20:33 Commandline: apt install dovecot-core dovecot-imapd dovecot-lmtpd dovecot-managesieved dovecot-mysql dovecot-sieve dovecot-pop3d Upgrade: dovecot-imapd:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-lmtpd:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-core:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-mysql:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-managesieved:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-sieve:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5), dovecot-pop3d:amd64 (1:2.3.16+dfsg1-3ubuntu2.4, 1:2.3.16+dfsg1-3ubuntu2.5) End-Date: 2025-09-08 19:20:45 # dpkg -l | grep dovecot hi dovecot-core 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - core files hi dovecot-imapd 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - IMAP daemon hi dovecot-lmtpd 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - LMTP server hi dovecot-managesieved 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - ManageSieve server hi dovecot-mysql 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - MySQL support hi dovecot-pop3d 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - POP3 daemon hi dovecot-sieve 1:2.3.16+dfsg1-3ubuntu2.5 amd64 secure POP3/IMAP server - Sieve filters support # tail -n3 /var/log/mail/mail.err Sep 8 19:30:51 ubuntu dovecot: lmtp(2804858): Panic: file mail-user.c: line 229 (mail_user_deinit): assertion failed: ((*user)->refcount == 1) Sep 8 19:30:51 ubuntu dovecot: lmtp(2804858): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(backtrace_append+0x46) [0x7f261a06d0b6] -> /usr/lib/dovecot/libdovecot.so.0(backtrace_get+0x22) [0x7f261a06d1d2] -> /usr/lib/dovecot/libdovecot.so.0(+0x109fab) [0x7f261a079fab] -> /usr/lib/dovecot/libdovecot.so.0(+0x10a047) [0x7f261a07a047] -> /usr/lib/dovecot/libdovecot.so.0(+0x5cfd3) [0x7f2619fccfd3] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x483c5) [0x7f261a18e3c5] -> dovecot/lmtp [10.20.32.164 DATA](lmtp_local_data+0x3e6) [0x56445893e996] -> dovecot/lmtp [10.20.32.164 DATA](client_default_cmd_data+0x191) [0x56445893d4c1] -> dovecot/lmtp [10.20.32.164 DATA](cmd_data_continue+0x180) [0x56445893d250] -> /usr/lib/dovecot/libdovecot.so.0(+0x7c6d6) [0x7f2619fec6d6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6d) [0x7f261a09025d] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x13a) [0x7f261a09195a] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x54) [0x7f261a090304] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40) [0x7f261a0904c0] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x17) [0x7f261a002727] -> dovecot/lmtp [10.20.32.164 DATA](main+0x225) [0x56445893bec5] -> /lib/x86_64-linux-gnu/libc.so.6(+0x29d90) [0x7f2619d69d90] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0x80) [0x7f2619d69e40] -> dovecot/lmtp [10.20.32.164 DATA](_start+0x25) [0x56445893bfc5] Sep 8 19:30:51 ubuntu dovecot: lmtp(2804858): Fatal: master: service(lmtp): child 2804858 killed with signal 6 (core dumps disabled - https://dovecot.org/bugreport.html#coredumps) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1992848 Title: lmtp crashes with: Panic: file mail-user.c: line 229 (mail_user_deinit): assertion failed: ((*user)->refcount == 1) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dovecot/+bug/1992848/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
