Package: dovecot-core Version: 1:2.2.27-3+deb9u2 Dovecot is periodically crashing on Debian Stretch when sieve plugin and virtual folders are loaded and used. Dovecot imap process crashes on every status change in mailbox.
In dovecot log are repeating following entries: dovecot: imap: Panic: file imap-sieve-storage.c: line 616: unreached dovecot: imap: Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0x95e92) [0x7f08e1546e92] -> /usr/lib/dovecot/libdovecot.so.0(+0x95f8d) [0x7f08e1546f8d] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f08e14dca91] -> /usr/lib/dovecot/modules/lib95_imap_sieve_plugin.so(+0x669a) [0x7f08dfe6d69a] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit_get_changes+0x51) [0x7f08e18145b1] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_transaction_commit+0x1e) [0x7f08e181467e] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_backend_box_sync_mail_unset+0x3c) [0x7f08e0d0558c] -> /usr/lib/dovecot/modules/lib20_virtual_plugin.so(virtual_storage_sync_init+0xc40) [0x7f08e0d08460] -> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_sync_init+0x3b) [0x7f08e181402b] -> dovecot/imap(imap_sync_init+0x68) [0x55e612307d48] -> dovecot/imap(cmd_sync_delayed+0x23c) [0x55e612308c0c] -> dovecot/imap(client_handle_input+0x26d) [0x55e6122fbf0d] -> dovecot/imap(client_continue_pending_input+0x46) [0x55e6122fbfa6] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x52) [0x7f08e155b9f2] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x109) [0x7f08e155d029] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x3c) [0x7f08e155ba8c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f08e155bc38] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f08e14e2fd3] -> dovecot/imap(main+0x328) [0x55e6122eee68] -> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1) [0x7f08e11322e1] -> dovecot/imap(_start+0x2a) [0x55e6122eefea] dovecot: imap: Fatal: master: service(imap): child 10660 killed with signal 6 (core dumps disabled) It makes Dovecot IMAP which is available in Debian Stretch repository absolutely unusable and cause corruption of indexes. I was looking at this problem and found out that other people already reported it on dovecot mailing list, and problem was fixed in git: https://www.dovecot.org/list/dovecot/2016-November/106001.html https://www.dovecot.org/list/dovecot/2016-November/106012.html -- Pali Rohár pali.ro...@gmail.com
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