Dovecot 2.3 panic

Aki Tuomi aki.tuomi at dovecot.fi
Thu Mar 29 09:40:56 EEST 2018


Hi!

Can you install debugging symbols and try get core?

A backtrace would help a lot!

https://dovecot.org/bugreport.html

Aki


On 29.03.2018 00:50, Martynas Bendorius wrote:
> Dovecot version: 2.3.1 (happens with 2.3.x too)
> OS: CentOS 7 64-bit
>
> Mar 28 16:29:24 lmtp(30383): Panic: file lib-event.c: line 182 (event_pop_global): assertion failed: (event != NULL)
> Mar 28 16:29:24 lmtp(30383): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xcc7a4) [0x7fac7f5177a4] -> /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7fac7f5177ea] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7fac7f48826b] -> /usr/lib/dovecot/libdovecot.so.0(+0xe8392) [0x7fac7f533392] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4ffc8) [0x7fac7f814fc8] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_context_deactivate+0x5d) [0x7fac7f52ec5d] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x85) [0x7fac7f52f055] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7fac7f53092f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7fac7f52f132] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7fac7f52f358] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7fac7f4ab6e3] -> dovecot/lmtp [local READY](main+0x229) [0x7fac7ff4a319] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7fac7f0a9c05] -> dovecot/lmtp [local READY](+0x5445) [0x7fac7ff4a445]
> Mar 28 16:30:03 lmtp(17330): Panic: file lib-event.c: line 182 (event_pop_global): assertion failed: (event != NULL)
> Mar 28 16:30:03 lmtp(17330): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xcc7a4) [0x7f31e1b977a4] -> /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7f31e1b977ea] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7f31e1b0826b] -> /usr/lib/dovecot/libdovecot.so.0(+0xe8392) [0x7f31e1bb3392] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4ffc8) [0x7f31e1e94fc8] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_context_deactivate+0x5d) [0x7f31e1baec5d] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x85) [0x7f31e1baf055] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7f31e1bb092f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7f31e1baf132] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7f31e1baf358] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7f31e1b2b6e3] -> dovecot/lmtp [local READY](main+0x229) [0x7f31e25ca319] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7f31e1729c05] -> dovecot/lmtp [local READY](+0x5445) [0x7f31e25ca445]
> Mar 28 16:31:52 lmtp(883): Panic: file lib-event.c: line 182 (event_pop_global): assertion failed: (event != NULL)
> Mar 28 16:31:52 lmtp(883): Error: Raw backtrace: /usr/lib/dovecot/libdovecot.so.0(+0xcc7a4) [0x7feb746127a4] -> /usr/lib/dovecot/libdovecot.so.0(default_fatal_handler+0x2a) [0x7feb746127ea] -> /usr/lib/dovecot/libdovecot.so.0(i_fatal+0) [0x7feb7458326b] -> /usr/lib/dovecot/libdovecot.so.0(+0xe8392) [0x7feb7462e392] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0x4ffc8) [0x7feb7490ffc8] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_context_deactivate+0x5d) [0x7feb74629c5d] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x85) [0x7feb7462a055] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x10f) [0x7feb7462b92f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x52) [0x7feb7462a132] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x38) [0x7feb7462a358] -> /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) [0x7feb745a66e3] -> dovecot/lmtp [local READY](main+0x229) [0x7feb75045319] -> /lib64/libc.so.6(__libc_start_main+0xf5) [0x7feb741a4c05] -> dovecot/lmtp [local READY](+0x5445) [0x7feb75045445]
>
> # 2.3.1 (8e2f634): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.1 (d9bc6dfe)
> # OS: Linux 3.10.0-714.10.2.lve1.5.12.el7.x86_64 x86_64 CloudLinux release 7.4 (Georgy Grechko)  
> # Hostname: XXXXXXXXXXXXXXX
> auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@&
> auth_verbose = yes
> default_client_limit = 12288
> default_login_user = dovecot
> default_process_limit = 2048
> default_vsz_limit = 512 M
> disable_plaintext_auth = no
> listen = *
> lmtp_rcpt_check_quota = yes
> login_greeting = Dovecot ready.
> mail_access_groups = mail
> mail_location = maildir:~/Maildir
> mail_max_userip_connections = 150
> mail_plugins = " quota"
> maildir_copy_with_hardlinks = no
> 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
> passdb {
>   driver = shadow
>   username_filter = !*@*
> }
> passdb {
>   args = username_format=%n /etc/virtual/%d/passwd
>   driver = passwd-file
>   username_filter = *@*
> }
> plugin {
>   quota = maildir
>   sieve = file:~/sieve;active=~/.dovecot.sieve
>   sieve_default = /var/lib/dovecot/sieve/default.sieve
>   sieve_global = /var/lib/dovecot/sieve/global/
> }
> protocols = imap pop3 lmtp sieve
> service auth {
>   user = root
> }
> service imap-login {
>   process_min_avail = 16
>   user = dovecot
> }
> service lmtp {
>   executable = lmtp -L
>   process_min_avail = 16
>   unix_listener lmtp-client {
>     group = mail
>     mode = 0660
>     user = mail
>   }
> }
> service managesieve-login {
>   inet_listener sieve {
>     port = 4190
>   }
>   process_min_avail = 4
>   service_count = 1
> }
> service pop3-login {
>   process_min_avail = 16
>   user = dovecot
> }
> ssl_cert = </etc/exim.cert
> ssl_cipher_list = ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:-LOW:-SSLv2:-EXP
> ssl_dh =  # hidden, use -P to show it
> ssl_key =  # hidden, use -P to show it
> userdb {
>   driver = passwd
> }
> userdb {
>   args = username_format=%n /etc/virtual/%d/passwd
>   driver = passwd-file
> }
> verbose_proctitle = yes
> protocol imap {
>   mail_plugins = " quota quota imap_quota"
> }
> protocol pop3 {
>   pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, bytes=%i/%o
>   pop3_uidl_format = %08Xu%08Xv
> }
> protocol lmtp {
>   info_log_path = /var/log/dovecot-lmtp.log
>   log_path = /var/log/dovecot-lmtp-errors.log
>   mail_plugins = " quota quota sieve"
>   postmaster_address = root@%{hostname}
>   quota_full_tempfail = no
> }
> protocol sieve {
>   info_log_path = /var/log/dovecot-sieve.log
>   log_path = /var/log/dovecot-sieve-errors.log
>   managesieve_implementation_string = Dovecot Pigeonhole
>   managesieve_logout_format = bytes=%i/%o
>   managesieve_max_compile_errors = 5
>   managesieve_max_line_length = 65536
> }
> remote 127.0.0.1 {
>   mail_max_userip_connections = 550
> }
> local_name XXXXXX {
>   ssl_cert = </etc/domains/XXXXXX.cert.combined
>   ssl_key =  # hidden, use -P to show it
> }
>
> --
> Best regards,
> Martynas Bendorius
>
>




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