It seems, it has to do with zlib plugin because a on test machine without zlib plugin activted it works without segmentation fault and i can read the log files written by rawlog.
Does anybody has a suggestion on what could be the problem? Compiling resp. building the rpm worked without error and dovecot works with zlib plugin activated. No other segfaults. Tia Thomas Am 10.11.2017 um 11:19 schrieb Aki Tuomi:
rawlog files are plain text, readable files. you do not need to dump them with doveadm. can you get gdb "bt full" for the core file? Aki On 10.11.2017 11:35, T. Robers wrote:Hello everybody, i tried to debug imap sessions with the rawlog feature and rawlog creates files but when i try to dump them doveadm tells me [...] Error: zlib.read((file)): unexpected EOF at [...]. I looked at syslog files and i see, that rawlog gets terminated with a segfault, e.g.: segfault at 10 ip 00007ff6da362596 sp 00007fffe725a080 error 4 in libdovecot.so.0.0.0[7ff6da2a4000+122000] Is there a way to debug why rawlog ist terminated? I haven't found anything.I would be very thankful, if somebody could give a hint. My system is: # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf # Pigeonhole version 0.4.21 (92477967) # OS: Linux 2.6.32-696.3.1.el6.x86_64 x86_64 CentOS release 6.9 (Final) ext4 auth_debug = yes auth_debug_passwords = yes auth_master_user_separator = * auth_mechanisms = plain login auth_verbose = yes disable_plaintext_auth = no imap_max_line_length = 2 M mail_debug = yes mail_location = maildir:/export/home/imap/%Lu/Maildir mail_plugins = acl zlib mail_log notify mailbox_idle_check_interval = 10 secs mailbox_list_index = yes 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 namespace { hidden = no ignore_on_failure = no inbox = no list = children location = maildir:%%h/Maildir:INDEXPVT=%h/shared/%%u prefix = shared/%%u/ separator = / subscriptions = yes type = shared } namespace inbox { hidden = no inbox = yes list = 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 = INBOX/ separator = / type = private } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { acl = vfile:/etc/dovecot/global-acls:cache_secs=300 acl_shared_dict = file:/export/home/shared-db/shared-mailboxes mail_log_events = append delete undelete expunge copy mailbox_delete mailbox_rename flag_change mail_log_fields = uid box msgid size from flags sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_global = /var/lib/dovecot/sieve/global/ sieve_user_log = ~/.dovecot.sieve.log zlib_save = gz zlib_save_level = 6 } protocols = imap pop3 lmtp sieve service auth { unix_listener /var/spool/postfix/private/auth { mode = 0666 } unix_listener auth-userdb { group = vmail mode = 0660 user = vmail } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_limit = 500 process_min_avail = 20 } service imap { executable = imap postlogin } service lmtp { inet_listener lmtp { address = 127.0.0.1 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } inet_listener sieve_deprecated { port = 2000 } } service pop3-login { inet_listener pop3s { port = 995 ssl = yes } } service pop3 { executable = pop3 postlogin } service postlogin { executable = script-login -d rawlog -f in } ssl = required ssl_cert = </etc/pki/dovecot/certs/mail.tutech.de.crt_chain ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL:!EXPORT ssl_key = # hidden, use -P to show it ssl_protocols = !SSLv3 !SSLv2 syslog_facility = local6 userdb { args = /etc/dovecot/dovecot-ldap-userdb.conf.ext driver = ldap } protocol lmtp { mail_plugins = acl zlib mail_log notify sieve } protocol imap { mail_max_userip_connections = 100 mail_plugins = acl zlib mail_log notify imap_zlib imap_acl rawlog_dir = /tmp/rawlog/%u } Tia Thomas
