panic when doveadm sieve put between multiple hosts
Aki Tuomi
aki.tuomi at dovecot.fi
Tue Jan 31 17:01:46 UTC 2017
This bug has been fixed in 2.2.26 with
https://github.com/dovecot/core/commit/65a8a3c66787f164a94b67adf38da33b0c2aa519
and
https://github.com/dovecot/core/commit/d83aa942767d377dadce82bb25a46aa96959b42b
Aki
On 2017-01-10 00:11, Tyler Jachetta wrote:
> Dovecot version: 2.2.25 (7be1766)
>
> I’m looking into an issue we’re having with a new setup. We have one fronted host with two backend hosts, and we’re attempting to use doveadm to allow us to administer sieve on the frontend and have it replicated to the backend hosts.
>
> When I attempt to use doveadm sieve put on the frontend host, i get the following on the frontend host:
> frontend-machine $ cat /tmp/default.sieve | doveadm sieve put default
> doveadm(root): Error: doveadm server disconnected before handshake: Connection reset by peer
> doveadm(root): Error: 10.1.11.82:10993: Command sieve put failed for root: Connection reset by peer
>
> when this happens, on the backend, I see this in /var/log/maillog:
>
> Jan 9 17:00:35 was-imap1 dovecot: doveadm: Panic: epoll_ctl(add, 0) failed: Operation not permitted (fd doesn't support epoll - instead of '<file', try 'cat file|')
> Jan 9 17:00:35 was-imap1 dovecot: doveadm: Error: Raw backtrace: /usr/lib64/dovecot/libdovecot.so.0(+0x8d52e) [0x7f7a86ba952e] -> /usr/lib64/dovecot/libdovecot.so.0(+0x8d60e) [0x7f7a86ba960e] -> /usr/lib64/dovecot/libdovecot.so.0(i_fatal+0) [0x7f7a86b481b6] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handle_add+0x147) [0x7f7a86bbe067] -> /usr/lib64/dovecot/libdovecot.so.0(+0xa0311) [0x7f7a86bbc311] -> /usr/lib64/dovecot/libdovecot.so.0(io_add+0xd) [0x7f7a86bbc3bd] -> dovecot/doveadm-server(doveadm_mail_get_input+0xde) [0x7f7a875c53de] -> dovecot/doveadm-server(doveadm_mail_single_user+0x73) [0x7f7a875c5633] -> dovecot/doveadm-server(+0x2874d) [0x7f7a875c574d] -> dovecot/doveadm-server(doveadm_cmd_ver2_to_mail_cmd_wrapper+0x27d) [0x7f7a875c65fd] -> dovecot/doveadm-server(doveadm_cmd_run_ver2+0x50c) [0x7f7a875d492c] -> dovecot/doveadm-server(+0x3b223) [0x7f7a875d8223] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_call_io+0x4c) [0x7f7a86bbce8c] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0xff) [0x7f7a86bbe2ef] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_handler_run+0x25) [0x7f7a86bbcf15] -> /usr/lib64/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f7a86bbd0c8] -> /usr/lib64/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f7a86b4e613] -> dovecot/doveadm-server(main+0x186) [0x7f7a875b6276] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f7a8677bb15] -> dovecot/doveadm-server(+0x19321) [0x7f7a875b6321]
> Jan 9 17:00:36 was-imap1 dovecot: doveadm: Fatal: master: service(doveadm): child 28542 killed with signal 6 (core dumped)
>
> Now, if I log in to either of the backend hosts, I can run the sieve put command and it all works out fine, so it’s something in the communication between the frontend and backend.
>
> dovecot -n output for both a frontend and backend below
>
> frontend-machine $ dovecot -n
> # 2.2.25 (7be1766): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.15 (97b3da0)
> # OS: Linux 3.10.0-327.18.2.el7.x86_64 x86_64 CentOS Linux release 7.2.1511 (Core)
> auth_username_format = %Ln
> director_mail_servers = 10.1.11.82 10.1.11.83
> director_servers = 10.1.11.81
> director_username_hash = %Ln
> doveadm_port = 10993
> managesieve_notify_capability = mailto
> managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext
> mbox_write_locks = fcntl
> namespace inbox {
> inbox = yes
> location =
> mailbox Drafts {
> special_use = \Drafts
> }
> mailbox Junk {
> special_use = \Junk
> }
> mailbox Sent {
> special_use = \Sent
> }
> mailbox "Sent Messages" {
> special_use = \Sent
> }
> mailbox Trash {
> special_use = \Trash
> }
> prefix =
> }
> passdb {
> args = proxy=y nopassword=y ssl=any-cert
> driver = static
> }
> plugin {
> sieve = file:~/sieve;active=~/.dovecot.sieve
> }
> protocols = imap pop3 lmtp sieve
> service director {
> fifo_listener login/proxy-notify {
> mode = 0666
> }
> inet_listener {
> port = 1109
> }
> unix_listener director-userdb {
> mode = 0600
> }
> unix_listener login/director {
> mode = 0666
> }
> }
> service doveadm {
> inet_listener {
> port = 10993
> }
> }
> service imap-login {
> executable = imap-login director
> }
> service imap {
> process_limit = 250
> }
> service ipc {
> unix_listener ipc {
> user = dovecot
> }
> }
> service managesieve-login {
> executable = managesieve-login director
> }
> service pop3-login {
> executable = pop3-login director
> }
> ssl = required
> ssl_ca = </etc/pki/CA/ca-cert-***.pem
> ssl_cert = </etc/pki/tls/certs/dovecot.cert
> ssl_client_ca_file = </etc/pki/CA/ca-cert-***.pem
> ssl_key = </etc/pki/tls/private/dovecot.key
> ssl_protocols = !SSLv2 !SSLv3
> ssl_require_crl = no
> userdb {
> driver = passwd
> }
> protocol doveadm {
> auth_socket_path = director-userdb
> }
> protocol sieve {
> passdb {
> args = proxy=y nopassword=y starttls=any-cert
> driver = static
> name =
> }
> }
> local 10.1.11.0/24 {
> doveadm_password = # hidden, use -P to show it
> }
>
> backend-machine $ dovecot -n
> # 2.2.25 (7be1766): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.4.15 (97b3da0)
> # OS: Linux 3.10.0-327.18.2.el7.x86_64 x86_64 CentOS Linux release 7.2.1511 (Core)
> auth_username_format = %Ln
> default_vsz_limit = 2 G
> lda_mailbox_autocreate = yes
> lda_mailbox_autosubscribe = yes
> mail_location = maildir:~/Maildir
> mail_plugins = " notify replication"
> managesieve_notify_capability = mailto
> managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date index ihave duplicate mime foreverypart extracttext
> mbox_write_locks = fcntl
> namespace inbox {
> inbox = yes
> location =
> mailbox Drafts {
> special_use = \Drafts
> }
> mailbox Junk {
> special_use = \Junk
> }
> mailbox Sent {
> special_use = \Sent
> }
> mailbox "Sent Messages" {
> special_use = \Sent
> }
> mailbox Trash {
> special_use = \Trash
> }
> prefix =
> separator = /
> }
> passdb {
> driver = pam
> }
> plugin {
> mail_replica = tcp:10.1.11.82:10993
> sieve = file:~/sieve;active=~/.dovecot.sieve
> }
> protocols = imap pop3 lmtp sieve
> service aggregator {
> fifo_listener replication-notify-fifo {
> mode = 0666
> }
> unix_listener replication-notify {
> mode = 0666
> }
> }
> service doveadm {
> inet_listener {
> port = 10993
> }
> }
> service lmtp {
> inet_listener lmtp {
> port = 24
> }
> }
> service replicator {
> process_min_avail = 1
> unix_listener replicator-doveadm {
> mode = 0666
> }
> }
> ssl = required
> ssl_ca = </etc/pki/CA/ca-cert-***.pem
> ssl_cert = </etc/pki/tls/certs/dovecot.cert
> ssl_client_ca_file = </etc/pki/CA/ca-cert-***.pem
> ssl_key = </etc/pki/tls/private/dovecot.key
> ssl_protocols = !SSLv2 !SSLv3
> ssl_require_crl = no
> userdb {
> driver = passwd
> }
> protocol lmtp {
> auth_username_format = %Ln
> info_log_path = /var/log/dovecot/lmtp.log
> mail_plugins = " notify replication sieve"
> postmaster_address = postmaster@***global.com
> }
> protocol sieve {
> passdb {
> args = proxy=y nopassword=y starttls=any-cert
> driver = static
> name =
> }
> }
> local 10.1.11.0/24 {
> doveadm_password = # hidden, use -P to show it
> }
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