On 24.04.2018 00:40, Grant Keller wrote: > Hello, > > I have a new director ring I am setting up on centos 7 with dovecot > 2.3.1. I haven't been able to replecate this in testing, but as soon as > I start pushing production traffic to the new ring I see dozens of these in > the > logs: > Apr 18 00:34:00 d.director.imapd.sonic.net kernel: imap-login[163107]: > segfault at 10 ip 00007ff625698dd5sp 00007ffe4b77bb28 error 4 in > libdovecot.so.0.0.0[7ff6255bf000+16e000] > > My config: > # 2.3.1 (c5a5c0c82): /etc/dovecot/dovecot.conf > # OS: Linux 3.10.0-693.21.1.el7.x86_64 x86_64 CentOS Linux release 7.4.1708 > (Core) > # Hostname: c.director.imapd.sonic.net > auth_master_user_separator = * > auth_username_format = %Ln > auth_verbose = yes > default_client_limit = 20000 > director_mail_servers = 64.142.111.75 64.142.111.43 64.142.111.76 > 64.142.111.39 64.142.111.81 > director_servers = c.director.imapd.sonic.net d.director.imapd.sonic.net > disable_plaintext_auth = no > doveadm_port = 1842 > login_trusted_networks = 64.142.18.0/24 64.142.105.2 64.142.111.67 > 64.142.111.36 64.142.105.3 64.142.111.35 64.142.111.68 > 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 = /etc/dovecot/master-users > driver = passwd-file > master = yes > pass = yes > } > passdb { > args = proxy=y nopassword=y > driver = static > } > service anvil { > client_limit = 40103 > } > service auth { > client_limit = 41704 > } > service director { > fifo_listener login/proxy-notify { > mode = 0666 > } > inet_listener { > port = 9321 > } > unix_listener login/director { > mode = 0666 > } > } > service imap-login { > executable = imap-login director > process_limit = 20000 > process_min_avail = 32 > } > service imap { > process_limit = 20480 > } > service ipc { > unix_listener ipc { > user = dovecot > } > } > service pop3-login { > executable = pop3-login director > process_limit = 20000 > process_min_avail = 32 > } > ssl_cert = </etc/dovecot/ssl/imap.sonic.net.pem > ssl_cipher_list = > ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA > ssl_dh = # hidden, use -P to show it > ssl_key = # hidden, use -P to show it > syslog_facility = local0 > protocol imap { > imap_max_line_length = 128 k > ssl_cert = </etc/dovecot/ssl/imap.sonic.net.pem > ssl_key = # hidden, use -P to show it > } > protocol pop3 { > ssl_cert = </etc/dovecot/ssl/pop.sonic.net.pem > ssl_key = # hidden, use -P to show it > } > > backtrace: > Stack trace of thread 56084: > #0 0x00007fe529be2dd5 i_stream_get_root_io (libdovecot.so.0) > #1 0x00007fe529be2e39 i_stream_set_input_pending > (libdovecot.so.0) > #2 0x00007fe527415a59 openssl_iostream_bio_sync > (libssl_iostream_openssl.so) > #3 0x00007fe527415c2a openssl_iostream_more > (libssl_iostream_openssl.so) > #4 0x00007fe527415c6b openssl_iostream_destroy > (libssl_iostream_openssl.so) > #5 0x00007fe529e8be72 client_unref (libdovecot-login.so.0) > #6 0x00007fe529e90441 login_proxy_free_full > (libdovecot-login.so.0) > #7 0x00007fe529e90e07 login_proxy_finished > (libdovecot-login.so.0) > #8 0x00007fe529becfb5 io_loop_call_io (libdovecot.so.0) > #9 0x00007fe529bee89f io_loop_handler_run_internal > (libdovecot.so.0) > #10 0x00007fe529bed0b2 io_loop_handler_run (libdovecot.so.0) > #11 0x00007fe529bed2d8 io_loop_run (libdovecot.so.0) > #12 0x00007fe529b69673 master_service_run (libdovecot.so.0) > #13 0x00007fe529e93532 login_binary_run > (libdovecot-login.so.0) > #14 0x00007fe529767c05 __libc_start_main (libc.so.6) > #15 0x00005567b256050a _start (imap-login) > > > > Grant Keller > System Operations > grant.kel...@sonic.com
Hi! Can you provide bt full output? Aki