Am 12.12.2013 09:10, schrieb Alessio Cecchi: > Hi, > > I'm running dovecot 2.1.7
you may upgrade to 2.1.17, then try again there where bugs solved http://hg.dovecot.org/dovecot-2.1/log?rev=vpopmail search list for patches and/or wait for Timo to answer with vpopmail auth and Maildir on NFS (I have > only one POP/IMAP server). All works fine but sometimes dovecot "imap" > process crush and I would like to understand why: > > Error in log files: > > Dec 12 06:32:56 pop01eeh dovecot: imap-login: Login: > user=<i...@mydomain.com>, method=PLAIN, rip=1.2.3.4, lip=192.168.1.3, > mpid=4086, session=<UbiBrU/tvACXCCva> > Dec 12 06:50:25 pop01eeh dovecot: imap(i...@mydomain.com), > session=<UbiBrU/tvACXCCva>: Disconnected: Disconnected in IDLE in=654 > out=704677 > Dec 12 06:50:25 pop01eeh dovecot: imap(i...@mydomain.com), > session=<UbiBrU/tvACXCCva>: Panic: Message count decreased > Dec 12 06:50:25 pop01eeh dovecot: imap(i...@mydomain.com), > session=<UbiBrU/tvACXCCva>: Error: Raw backtrace: > /usr/lib/dovecot/libdovecot.so.0(+0x4892a) [0x7f68af1ae92a] -> > /usr/lib/dovecot/libdovecot.so.0(+0x48976) [0x7f68af1ae976] -> > /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f68af181faf] -> > dovecot/imap() [0x4191e9] -> dovecot/imap() [0x40b366] -> dovecot/imap() > [0x40b69c] -> dovecot/imap(command_exec+0x3d) [0x411ffd] -> > dovecot/imap(client_command_cancel+0x3a) [0x4108da] -> > dovecot/imap(client_destroy+0xdd) [0x41178d] -> > /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x36) [0x7f68af1bab56] > -> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x9f) > [0x7f68af1bbb8f] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x28) > [0x7f68af1baaf8] -> > /usr/lib/dovecot/libdovecot.so.0(master_service_run+0x13) > [0x7f68af1a6413] -> dovecot/imap(main+0x2a4) [0x419dd4] -> > /lib/libc.so.6(__libc_start_main+0xfd) [0x7f68aee22c8d] -> > dovecot/imap() [0x4090b9] > Dec 12 06:50:25 pop01eeh dovecot: imap(i...@mydomain.com), > session=<UbiBrU/tvACXCCva>: Fatal: master: service(imap): child 4086 > killed with signal 6 (core dumped) > > > Backtrace: > > # gdb /usr/libexec/dovecot/imap /home/dovecot/core > GNU gdb (GDB) 7.0.1-debian > Copyright (C) 2009 Free Software Foundation, Inc. > License GPLv3+: GNU GPL version 3 or later > <http://gnu.org/licenses/gpl.html> > This is free software: you are free to change and redistribute it. > There is NO WARRANTY, to the extent permitted by law. Type "show copying" > and "show warranty" for details. > This GDB was configured as "x86_64-linux-gnu". > For bug reporting instructions, please see: > <http://www.gnu.org/software/gdb/bugs/>... > Reading symbols from /usr/libexec/dovecot/imap...done. > > warning: Can't read pathname for load map: Input/output error. > Reading symbols from /usr/lib/dovecot/libdovecot-storage.so.0...done. > Loaded symbols for /usr/lib/dovecot/libdovecot-storage.so.0 > Reading symbols from /usr/lib/dovecot/libdovecot.so.0...done. > Loaded symbols for /usr/lib/dovecot/libdovecot.so.0 > Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done. > Loaded symbols for /lib/libc.so.6 > Reading symbols from /usr/lib/libssl.so.0.9.8...(no debugging symbols > found)...done. > Loaded symbols for /usr/lib/libssl.so.0.9.8 > Reading symbols from /usr/lib/libcrypto.so.0.9.8...(no debugging symbols > found)...done. > Loaded symbols for /usr/lib/libcrypto.so.0.9.8 > Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done. > Loaded symbols for /lib/libdl.so.2 > Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done. > Loaded symbols for /lib/librt.so.1 > Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols > found)...done. > Loaded symbols for /lib64/ld-linux-x86-64.so.2 > Reading symbols from /usr/lib/libz.so.1...(no debugging symbols > found)...done. > Loaded symbols for /usr/lib/libz.so.1 > Reading symbols from /lib/libpthread.so.0...(no debugging symbols > found)...done. > Loaded symbols for /lib/libpthread.so.0 > Reading symbols from /usr/lib/dovecot/lib01_acl_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib01_acl_plugin.so > Reading symbols from /usr/lib/dovecot/lib02_imap_acl_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib02_imap_acl_plugin.so > Reading symbols from /usr/lib/dovecot/lib10_quota_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib10_quota_plugin.so > Reading symbols from /usr/lib/dovecot/lib11_imap_quota_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib11_imap_quota_plugin.so > Reading symbols from /usr/lib/dovecot/lib20_expire_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib20_expire_plugin.so > Reading symbols from /usr/lib/dovecot/lib20_zlib_plugin.so...done. > Loaded symbols for /usr/lib/dovecot/lib20_zlib_plugin.so > Reading symbols from /lib/libbz2.so.1.0...(no debugging symbols > found)...done. > Loaded symbols for /lib/libbz2.so.1.0 > Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols > found)...done. > Loaded symbols for /lib/libgcc_s.so.1 > Core was generated by `dovecot/imap'. > Program terminated with signal 6, Aborted. > #0 0x00007f68aee361b5 in raise () from /lib/libc.so.6 > (gdb) bt full > #0 0x00007f68aee361b5 in raise () from /lib/libc.so.6 > No symbol table info available. > #1 0x00007f68aee38fc0 in abort () from /lib/libc.so.6 > No symbol table info available. > #2 0x00007f68af1ae93d in default_fatal_finish (type=<value optimized > out>, status=0) at failures.c:191 > backtrace = 0x1980248 > "/usr/lib/dovecot/libdovecot.so.0(+0x4892a) [0x7f68af1ae92a] -> > /usr/lib/dovecot/libdovecot.so.0(+0x48976) [0x7f68af1ae976] -> > /usr/lib/dovecot/libdovecot.so.0(i_error+0) [0x7f68af181faf] -> > dovecot/im"... > #3 0x00007f68af1ae976 in i_internal_fatal_handler (ctx=0x7fffb9588e70, > format=<value optimized out>, args=<value optimized out>) at failures.c:649 > status = 0 > #4 0x00007f68af181faf in i_panic (format=0xff6 <Address 0xff6 out of > bounds>) at failures.c:263 > ctx = {type = LOG_TYPE_PANIC, exit_status = 0, timestamp = 0x0} > args = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = > 0x7fffb9588f40, reg_save_area = 0x7fffb9588e80}} > #5 0x00000000004191e9 in imap_sync_deinit (ctx=0x1a36ae0, > sync_cmd=0x19a54c0) at imap-sync.c:242 > client = 0x19a48e0 > status = {messages = 1983, recent = 0, unseen = 0, uidvalidity = > 1290163110, uidnext = 84072, first_unseen_seq = 0, first_recent_uid = > 84072, > last_cached_seq = 0, highest_modseq = 1, keywords = 0x0, > permanent_flags = 0, nonpermanent_modseqs = 1, permanent_keywords = 0, > allow_new_keywords = 0} > sync_status = {sync_delayed_expunges = 0} > ret = 0 > #6 0x000000000040b366 in idle_finish (ctx=0x19a55b0, done_ok=false, > free_cmd=false) at cmd-idle.c:38 > client = 0x19a48e0 > #7 0x000000000040b69c in cmd_idle_continue (cmd=0x19a54c0) at > cmd-idle.c:234 > client = 0x19a48e0 > ctx = 0x19a55b0 > orig_offset = 704677 > #8 0x0000000000411ffd in command_exec (cmd=0x19a54c0) at > imap-commands.c:148 > hook = 0x1989cd0 > ret = <value optimized out> > #9 0x00000000004108da in client_command_cancel (_cmd=0x7fffb9589088) at > imap-client.c:136 > cmd = 0x19a54c0 > cmd_ret = <value optimized out> > #10 0x000000000041178d in client_destroy (client=0x19a48e0, > reason=<value optimized out>) at imap-client.c:202 > cmd = 0x0 > __FUNCTION__ = "client_destroy" > #11 0x00007f68af1bab56 in io_loop_call_io (io=0x1a35ad0) at ioloop.c:379 > ioloop = 0x1988670 > t_id = 2 > #12 0x00007f68af1bbb8f in io_loop_handler_run (ioloop=<value optimized > out>) at ioloop-epoll.c:213 > ctx = 0x19889e0 > event = 0x1988a50 > list = 0x19a5410 > io = 0xff6 > tv = {tv_sec = 29, tv_usec = 999250} > msecs = <value optimized out> > ret = <value optimized out> > i = 0 > call = false > #13 0x00007f68af1baaf8 in io_loop_run (ioloop=0x1988670) at ioloop.c:398 > No locals. > #14 0x00007f68af1a6413 in master_service_run (service=0x1988520, > callback=0xff6) at master-service.c:544 > No locals. > ---Type <return> to continue, or q <return> to quit--- > #15 0x0000000000419dd4 in main (argc=1, argv=0x1988370) at main.c:389 > set_roots = {0x41cf20, 0x0} > login_set = {auth_socket_path = 0x1980078 > "/var/run/dovecot/auth-master", postlogin_socket_path = 0x0, > postlogin_timeout_secs = 60, > callback = 0x41a0b0 <login_client_connected>, failure_callback > = 0x41a050 <login_client_failed>} > service_flags = <value optimized out> > storage_service_flags = MAIL_STORAGE_SERVICE_FLAG_DISALLOW_ROOT > username = 0x0 > c = <value optimized out> > (gdb) > > And my configuration: > > dovecot -n > # 2.1.17: /etc/dovecot/dovecot.conf > # OS: Linux 2.6.32-5-amd64 x86_64 Debian 6.0.8 > auth_cache_size = 8 M > deliver_log_format = msgid=%m, from=%f, subject="%s": %$ > dict { > acl = mysql:/etc/dovecot/dovecot-share-folder.conf > expire = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext > sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext > } > disable_plaintext_auth = no > dotlock_use_excl = no > first_valid_gid = 89 > first_valid_uid = 89 > last_valid_gid = 89 > last_valid_uid = 89 > lda_mailbox_autocreate = yes > lda_mailbox_autosubscribe = yes > mail_fsync = always > mail_location = maildir:~/Maildir > mail_log_prefix = "%s(%u), session=<%{session}>: " > mail_nfs_index = yes > mail_nfs_storage = yes > mail_plugins = quota acl zlib expire > maildir_very_dirty_syncs = yes > managesieve_notify_capability = mailto > managesieve_sieve_capability = fileinto reject envelope > encoded-character subaddress comparator-i;ascii-numeric relational regex > imap4flags copy include variables body enotify environment mailbox date > ihave vnd.dovecot.duplicate > mmap_disable = yes > namespace { > list = children > location = maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u > prefix = shared/%%n/ > separator = / > subscriptions = no > type = shared > } > namespace inbox { > inbox = yes > location = > mailbox Drafts { > special_use = \Drafts > } > mailbox Sent { > special_use = \Sent > } > mailbox "Sent Messages" { > special_use = \Sent > } > mailbox Spam { > special_use = \Junk > } > mailbox Trash { > special_use = \Trash > } > prefix = > separator = / > } > passdb { > args = username_format=%Ld /etc/dovecot/extra/alias-domains-denylogin.txt > deny = yes > driver = passwd-file > } > passdb { > args = cache_key=%s%u webmail=192.168.1.5 > driver = vpopmail > } > plugin { > acl = vfile:/etc/dovecot/global-acls:cache_secs=300 > acl_shared_dict = proxy::acl > expire = Trash > expire2 = Spam > expire_dict = proxy::expire > quota = maildir:UserQuota > quota2 = dict:Quota Usage::noenforcing:proxy::sqlquota > quota_rule2 = Trash:storage=+100M > quota_warning = storage=95%% quota-warning 95 %u > quota_warning2 = storage=80%% quota-warning 80 %u > sieve = ~/.dovecot.sieve > sieve_before = /etc/dovecot/sieve/before.sieve > sieve_dir = ~/sieve > sieve_extensions = +vnd.dovecot.duplicate -vacation > } > pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s, bytes=%i/%o > protocols = imap pop3 sieve > service auth { > unix_listener auth-userdb { > group = vchkpw > mode = 0660 > user = vpopmail > } > } > service dict { > process_limit = 300 > unix_listener dict { > group = vchkpw > mode = 0660 > user = vpopmail > } > } > service imap-login { > process_min_avail = 4 > service_count = 0 > } > service imap { > process_limit = 2400 > } > service managesieve-login { > inet_listener sieve { > port = 4190 > } > } > service pop3-login { > service_count = 0 > } > service quota-warning { > executable = script /etc/dovecot/scripts/quota-warning.sh > unix_listener quota-warning { > user = vpopmail > } > user = vpopmail > } > ssl_cert = </etc/dovecot/ssl/wildcard-myserver.net.pem > ssl_key = </etc/dovecot/ssl/wildcard-myserver.net.key > submission_host = localhost > userdb { > args = quota_template=quota_rule=*:backend=%q > driver = vpopmail > } > protocol lda { > mail_plugins = quota acl zlib expire sieve > } > protocol imap { > imap_client_workarounds = delay-newmail tb-extra-mailbox-sep > tb-lsub-flags > imap_idle_notify_interval = 29 mins > mail_max_userip_connections = 15 > mail_plugins = quota acl zlib expire imap_quota imap_acl > } > protocol sieve { > mail_max_userip_connections = 2 > } > protocol pop3 { > mail_max_userip_connections = 5 > pop3_client_workarounds = outlook-no-nuls oe-ns-eoh > } > > Thanks Best Regards MfG Robert Schetterer -- [*] 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